5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Siddh Raman Pant code@siddh.me

[ Upstream commit c95f919567d6f1914f13350af61a1b044ac85014 ]

llcp_sock_sendmsg() calls nfc_llcp_send_ui_frame() which in turn calls nfc_alloc_send_skb(), which accesses the nfc_dev from the llcp_sock for getting the headroom and tailroom needed for skb allocation.

Parallelly the nfc_dev can be freed, as the refcount is decreased via nfc_free_device(), leading to a UAF reported by Syzkaller, which can be summarized as follows:

(1) llcp_sock_sendmsg() -> nfc_llcp_send_ui_frame() -> nfc_alloc_send_skb() -> Dereference *nfc_dev (2) virtual_ncidev_close() -> nci_free_device() -> nfc_free_device() -> put_device() -> nfc_release() -> Free *nfc_dev

When a reference to llcp_local is acquired, we do not acquire the same for the nfc_dev. This leads to freeing even when the llcp_local is in use, and this is the case with the UAF described above too.

Thus, when we acquire a reference to llcp_local, we should acquire a reference to nfc_dev, and release the references appropriately later.

References for llcp_local is initialized in nfc_llcp_register_device() (which is called by nfc_register_device()). Thus, we should acquire a reference to nfc_dev there.

nfc_unregister_device() calls nfc_llcp_unregister_device() which in turn calls nfc_llcp_local_put(). Thus, the reference to nfc_dev is appropriately released later.

Reported-and-tested-by: syzbot+bbe84a4010eeea00982d@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=bbe84a4010eeea00982d Fixes: c7aa12252f51 ("NFC: Take a reference on the LLCP local pointer when creating a socket") Reviewed-by: Suman Ghosh sumang@marvell.com Signed-off-by: Siddh Raman Pant code@siddh.me Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/nfc/llcp_core.c | 39 ++++++++++++++++++++++++++++++++++++--- 1 file changed, 36 insertions(+), 3 deletions(-)

diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c index 92f70686bee0a..da3cb0d29b972 100644 --- a/net/nfc/llcp_core.c +++ b/net/nfc/llcp_core.c @@ -147,6 +147,13 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool device,

static struct nfc_llcp_local *nfc_llcp_local_get(struct nfc_llcp_local *local) { + /* Since using nfc_llcp_local may result in usage of nfc_dev, whenever + * we hold a reference to local, we also need to hold a reference to + * the device to avoid UAF. + */ + if (!nfc_get_device(local->dev->idx)) + return NULL; + kref_get(&local->ref);

return local; @@ -179,10 +186,18 @@ static void local_release(struct kref *ref)

int nfc_llcp_local_put(struct nfc_llcp_local *local) { + struct nfc_dev *dev; + int ret; + if (local == NULL) return 0;

- return kref_put(&local->ref, local_release); + dev = local->dev; + + ret = kref_put(&local->ref, local_release); + nfc_put_device(dev); + + return ret; }

static struct nfc_llcp_sock *nfc_llcp_sock_get(struct nfc_llcp_local *local, @@ -968,8 +983,17 @@ static void nfc_llcp_recv_connect(struct nfc_llcp_local *local, }

new_sock = nfc_llcp_sock(new_sk); - new_sock->dev = local->dev; + new_sock->local = nfc_llcp_local_get(local); + if (!new_sock->local) { + reason = LLCP_DM_REJ; + sock_put(&new_sock->sk); + release_sock(&sock->sk); + sock_put(&sock->sk); + goto fail; + } + + new_sock->dev = local->dev; new_sock->rw = sock->rw; new_sock->miux = sock->miux; new_sock->nfc_protocol = sock->nfc_protocol; @@ -1607,7 +1631,16 @@ int nfc_llcp_register_device(struct nfc_dev *ndev) if (local == NULL) return -ENOMEM;

- local->dev = ndev; + /* As we are going to initialize local's refcount, we need to get the + * nfc_dev to avoid UAF, otherwise there is no point in continuing. + * See nfc_llcp_local_get(). + */ + local->dev = nfc_get_device(ndev->idx); + if (!local->dev) { + kfree(local); + return -ENODEV; + } + INIT_LIST_HEAD(&local->list); kref_init(&local->ref); mutex_init(&local->sdp_lock);

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Hangyu Hua hbh25y@gmail.com

[ Upstream commit 8fcb0382af6f1ef50936f1be05b8149eb2f88496 ]

m->data needs to be freed when em_text_destroy is called.

Fixes: d675c989ed2d ("[PKT_SCHED]: Packet classification based on textsearch (ematch)") Acked-by: Jamal Hadi Salim jhs@mojatatu.com Signed-off-by: Hangyu Hua hbh25y@gmail.com Reviewed-by: Simon Horman horms@kernel.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/sched/em_text.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/sched/em_text.c b/net/sched/em_text.c index 6f3c1fb2fb44c..f176afb70559e 100644 --- a/net/sched/em_text.c +++ b/net/sched/em_text.c @@ -97,8 +97,10 @@ static int em_text_change(struct net *net, void *data, int len,

static void em_text_destroy(struct tcf_ematch *m) { - if (EM_TEXT_PRIV(m) && EM_TEXT_PRIV(m)->config) + if (EM_TEXT_PRIV(m) && EM_TEXT_PRIV(m)->config) { textsearch_destroy(EM_TEXT_PRIV(m)->config); + kfree(EM_TEXT_PRIV(m)); + } }

static int em_text_dump(struct sk_buff *skb, struct tcf_ematch *m)

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Marc Kleine-Budde mkl@pengutronix.de

[ Upstream commit 0826e82b8a32e646b7b32ba8b68ba30812028e47 ]

Add support for SO_MARK to the CAN_RAW protocol. This makes it possible to add traffic control filters based on the fwmark.

Link: https://lore.kernel.org/all/20221210113653.170346-1-mkl@pengutronix.de Acked-by: Oliver Hartkopp socketcan@hartkopp.net Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Stable-dep-of: 7f6ca95d16b9 ("net: Implement missing getsockopt(SO_TIMESTAMPING_NEW)") Signed-off-by: Sasha Levin sashal@kernel.org --- net/can/raw.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/net/can/raw.c b/net/can/raw.c index 2700153262771..2f500d8a0af24 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -826,6 +826,7 @@ static int raw_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) skb->dev = dev; skb->sk = sk; skb->priority = sk->sk_priority; + skb->mark = sk->sk_mark; skb->tstamp = sockc.transmit_time;

skb_setup_tx_timestamp(skb, sockc.tsflags);

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Stefan Wahren wahrenst@gmx.net

[ Upstream commit 72ad3b772b6d393701df58ba1359b0bb346a19ed ]

Running a multi-arch kernel (multi_v7_defconfig) on a Raspberry Pi 3B+ with enabled CONFIG_UBSAN triggers the following warning:

UBSAN: array-index-out-of-bounds in arch/arm/mach-sunxi/mc_smp.c:810:29 index 2 is out of range for type 'sunxi_mc_smp_data [2]' CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc6-00248-g5254c0cbc92d Hardware name: BCM2835 unwind_backtrace from show_stack+0x10/0x14 show_stack from dump_stack_lvl+0x40/0x4c dump_stack_lvl from ubsan_epilogue+0x8/0x34 ubsan_epilogue from __ubsan_handle_out_of_bounds+0x78/0x80 __ubsan_handle_out_of_bounds from sunxi_mc_smp_init+0xe4/0x4cc sunxi_mc_smp_init from do_one_initcall+0xa0/0x2fc do_one_initcall from kernel_init_freeable+0xf4/0x2f4 kernel_init_freeable from kernel_init+0x18/0x158 kernel_init from ret_from_fork+0x14/0x28

Since the enabled method couldn't match with any entry from sunxi_mc_smp_data, the value of the index shouldn't be used right after the loop. So move it after the check of ret in order to have a valid index.

Fixes: 1631090e34f5 ("ARM: sun9i: smp: Add is_a83t field") Signed-off-by: Stefan Wahren wahrenst@gmx.net Link: https://lore.kernel.org/r/20231228193903.9078-1-wahrenst@gmx.net Reviewed-by: Chen-Yu Tsai wens@csie.org Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/mach-sunxi/mc_smp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-sunxi/mc_smp.c b/arch/arm/mach-sunxi/mc_smp.c index 26cbce1353387..b2f5f4f28705f 100644 --- a/arch/arm/mach-sunxi/mc_smp.c +++ b/arch/arm/mach-sunxi/mc_smp.c @@ -808,12 +808,12 @@ static int __init sunxi_mc_smp_init(void) break; }

- is_a83t = sunxi_mc_smp_data[i].is_a83t; - of_node_put(node); if (ret) return -ENODEV;

+ is_a83t = sunxi_mc_smp_data[i].is_a83t; + if (!sunxi_mc_smp_cpu_table_init()) return -EINVAL;

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Marc Dionne marc.dionne@auristor.com

[ Upstream commit 01b2885d9415152bcb12ff1f7788f500a74ea0ed ]

Commit 86a7e0b69bd5 ("net: prevent rewrite of msg_name in sock_sendmsg()") made sock_sendmsg save the incoming msg_name pointer and restore it before returning, to insulate the caller against msg_name being changed by the called code. If the address length was also changed however, we may return with an inconsistent structure where the length doesn't match the address, and attempts to reuse it may lead to lost packets.

For example, a kernel that doesn't have commit 1c5950fc6fe9 ("udp6: fix potential access to stale information") will replace a v4 mapped address with its ipv4 equivalent, and shorten namelen accordingly from 28 to 16. If the caller attempts to reuse the resulting msg structure, it will have the original ipv6 (v4 mapped) address but an incorrect v4 length.

Fixes: 86a7e0b69bd5 ("net: prevent rewrite of msg_name in sock_sendmsg()") Signed-off-by: Marc Dionne marc.dionne@auristor.com Reviewed-by: Willem de Bruijn willemb@google.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/socket.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/net/socket.c b/net/socket.c index 38c26e20511d7..e3a50f107d64d 100644 --- a/net/socket.c +++ b/net/socket.c @@ -661,6 +661,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg) { struct sockaddr_storage *save_addr = (struct sockaddr_storage *)msg->msg_name; struct sockaddr_storage address; + int save_len = msg->msg_namelen; int ret;

if (msg->msg_name) { @@ -670,6 +671,7 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg)

ret = __sock_sendmsg(sock, msg); msg->msg_name = save_addr; + msg->msg_namelen = save_len;

return ret; }

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Jerome Brunet jbrunet@baylibre.com

[ Upstream commit 9c29fd9bdf92900dc0cc5c2d8f58951a7bdc0f41 ]

The hdmi routing mechanism used on g12a hdmi is also used: * other Amlogic SoC types * for the internal DAC path

Each of these codec glues are slightly different but the idea behind it remains the same. This change extract some helper functions from the g12a-tohdmitx driver to make them available for other Amlogic codecs.

Signed-off-by: Jerome Brunet jbrunet@baylibre.com Link: https://lore.kernel.org/r/20200213155159.3235792-3-jbrunet@baylibre.com Signed-off-by: Mark Brown broonie@kernel.org Stable-dep-of: 1e001206804b ("ASoC: meson: g12a-tohdmitx: Validate written enum values") Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/meson/Kconfig | 4 + sound/soc/meson/Makefile | 2 + sound/soc/meson/g12a-tohdmitx.c | 219 ++++++----------------------- sound/soc/meson/meson-codec-glue.c | 149 ++++++++++++++++++++ sound/soc/meson/meson-codec-glue.h | 32 +++++ 5 files changed, 230 insertions(+), 176 deletions(-) create mode 100644 sound/soc/meson/meson-codec-glue.c create mode 100644 sound/soc/meson/meson-codec-glue.h

diff --git a/sound/soc/meson/Kconfig b/sound/soc/meson/Kconfig index e0d24592ebd70..f9188274f6b0f 100644 --- a/sound/soc/meson/Kconfig +++ b/sound/soc/meson/Kconfig @@ -85,9 +85,13 @@ config SND_MESON_AXG_PDM Select Y or M to add support for PDM input embedded in the Amlogic AXG SoC family

+config SND_MESON_CODEC_GLUE + tristate + config SND_MESON_G12A_TOHDMITX tristate "Amlogic G12A To HDMI TX Control Support" select REGMAP_MMIO + select SND_MESON_CODEC_GLUE imply SND_SOC_HDMI_CODEC help Select Y or M to add support for HDMI audio on the g12a SoC diff --git a/sound/soc/meson/Makefile b/sound/soc/meson/Makefile index 1a8b1470ed843..529a807b3f376 100644 --- a/sound/soc/meson/Makefile +++ b/sound/soc/meson/Makefile @@ -11,6 +11,7 @@ snd-soc-meson-axg-sound-card-objs := axg-card.o snd-soc-meson-axg-spdifin-objs := axg-spdifin.o snd-soc-meson-axg-spdifout-objs := axg-spdifout.o snd-soc-meson-axg-pdm-objs := axg-pdm.o +snd-soc-meson-codec-glue-objs := meson-codec-glue.o snd-soc-meson-g12a-tohdmitx-objs := g12a-tohdmitx.o

obj-$(CONFIG_SND_MESON_AXG_FIFO) += snd-soc-meson-axg-fifo.o @@ -24,4 +25,5 @@ obj-$(CONFIG_SND_MESON_AXG_SOUND_CARD) += snd-soc-meson-axg-sound-card.o obj-$(CONFIG_SND_MESON_AXG_SPDIFIN) += snd-soc-meson-axg-spdifin.o obj-$(CONFIG_SND_MESON_AXG_SPDIFOUT) += snd-soc-meson-axg-spdifout.o obj-$(CONFIG_SND_MESON_AXG_PDM) += snd-soc-meson-axg-pdm.o +obj-$(CONFIG_SND_MESON_CODEC_GLUE) += snd-soc-meson-codec-glue.o obj-$(CONFIG_SND_MESON_G12A_TOHDMITX) += snd-soc-meson-g12a-tohdmitx.o diff --git a/sound/soc/meson/g12a-tohdmitx.c b/sound/soc/meson/g12a-tohdmitx.c index cbe47e0cae426..d02825669484a 100644 --- a/sound/soc/meson/g12a-tohdmitx.c +++ b/sound/soc/meson/g12a-tohdmitx.c @@ -12,112 +12,51 @@ #include <sound/soc-dai.h>

#include <dt-bindings/sound/meson-g12a-tohdmitx.h> +#include "meson-codec-glue.h"

#define G12A_TOHDMITX_DRV_NAME "g12a-tohdmitx"

#define TOHDMITX_CTRL0 0x0 #define CTRL0_ENABLE_SHIFT 31 -#define CTRL0_I2S_DAT_SEL GENMASK(13, 12) +#define CTRL0_I2S_DAT_SEL_SHIFT 12 +#define CTRL0_I2S_DAT_SEL (0x3 << CTRL0_I2S_DAT_SEL_SHIFT) #define CTRL0_I2S_LRCLK_SEL GENMASK(9, 8) #define CTRL0_I2S_BLK_CAP_INV BIT(7) #define CTRL0_I2S_BCLK_O_INV BIT(6) #define CTRL0_I2S_BCLK_SEL GENMASK(5, 4) #define CTRL0_SPDIF_CLK_CAP_INV BIT(3) #define CTRL0_SPDIF_CLK_O_INV BIT(2) -#define CTRL0_SPDIF_SEL BIT(1) +#define CTRL0_SPDIF_SEL_SHIFT 1 +#define CTRL0_SPDIF_SEL (0x1 << CTRL0_SPDIF_SEL_SHIFT) #define CTRL0_SPDIF_CLK_SEL BIT(0)

-struct g12a_tohdmitx_input { - struct snd_soc_pcm_stream params; - unsigned int fmt; -}; - -static struct snd_soc_dapm_widget * -g12a_tohdmitx_get_input(struct snd_soc_dapm_widget *w) -{ - struct snd_soc_dapm_path *p = NULL; - struct snd_soc_dapm_widget *in; - - snd_soc_dapm_widget_for_each_source_path(w, p) { - if (!p->connect) - continue; - - /* Check that we still are in the same component */ - if (snd_soc_dapm_to_component(w->dapm) != - snd_soc_dapm_to_component(p->source->dapm)) - continue; - - if (p->source->id == snd_soc_dapm_dai_in) - return p->source; - - in = g12a_tohdmitx_get_input(p->source); - if (in) - return in; - } - - return NULL; -} - -static struct g12a_tohdmitx_input * -g12a_tohdmitx_get_input_data(struct snd_soc_dapm_widget *w) -{ - struct snd_soc_dapm_widget *in = - g12a_tohdmitx_get_input(w); - struct snd_soc_dai *dai; - - if (WARN_ON(!in)) - return NULL; - - dai = in->priv; - - return dai->playback_dma_data; -} - static const char * const g12a_tohdmitx_i2s_mux_texts[] = { "I2S A", "I2S B", "I2S C", };

-static SOC_ENUM_SINGLE_EXT_DECL(g12a_tohdmitx_i2s_mux_enum, - g12a_tohdmitx_i2s_mux_texts); - -static int g12a_tohdmitx_get_input_val(struct snd_soc_component *component, - unsigned int mask) -{ - unsigned int val; - - snd_soc_component_read(component, TOHDMITX_CTRL0, &val); - return (val & mask) >> __ffs(mask); -} - -static int g12a_tohdmitx_i2s_mux_get_enum(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = - snd_soc_dapm_kcontrol_component(kcontrol); - - ucontrol->value.enumerated.item[0] = - g12a_tohdmitx_get_input_val(component, CTRL0_I2S_DAT_SEL); - - return 0; -} - static int g12a_tohdmitx_i2s_mux_put_enum(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) + struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol); struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned int mux = ucontrol->value.enumerated.item[0]; - unsigned int val = g12a_tohdmitx_get_input_val(component, - CTRL0_I2S_DAT_SEL); + unsigned int mux, changed; + + mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]); + changed = snd_soc_component_test_bits(component, e->reg, + CTRL0_I2S_DAT_SEL, + FIELD_PREP(CTRL0_I2S_DAT_SEL, + mux)); + + if (!changed) + return 0;

/* Force disconnect of the mux while updating */ - if (val != mux) - snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL); + snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);

- snd_soc_component_update_bits(component, TOHDMITX_CTRL0, + snd_soc_component_update_bits(component, e->reg, CTRL0_I2S_DAT_SEL | CTRL0_I2S_LRCLK_SEL | CTRL0_I2S_BCLK_SEL, @@ -130,30 +69,19 @@ static int g12a_tohdmitx_i2s_mux_put_enum(struct snd_kcontrol *kcontrol, return 1; }

+static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_i2s_mux_enum, TOHDMITX_CTRL0, + CTRL0_I2S_DAT_SEL_SHIFT, + g12a_tohdmitx_i2s_mux_texts); + static const struct snd_kcontrol_new g12a_tohdmitx_i2s_mux = SOC_DAPM_ENUM_EXT("I2S Source", g12a_tohdmitx_i2s_mux_enum, - g12a_tohdmitx_i2s_mux_get_enum, + snd_soc_dapm_get_enum_double, g12a_tohdmitx_i2s_mux_put_enum);

static const char * const g12a_tohdmitx_spdif_mux_texts[] = { "SPDIF A", "SPDIF B", };

-static SOC_ENUM_SINGLE_EXT_DECL(g12a_tohdmitx_spdif_mux_enum, - g12a_tohdmitx_spdif_mux_texts); - -static int g12a_tohdmitx_spdif_mux_get_enum(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_component *component = - snd_soc_dapm_kcontrol_component(kcontrol); - - ucontrol->value.enumerated.item[0] = - g12a_tohdmitx_get_input_val(component, CTRL0_SPDIF_SEL); - - return 0; -} - static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { @@ -162,13 +90,18 @@ static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol, struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned int mux = ucontrol->value.enumerated.item[0]; - unsigned int val = g12a_tohdmitx_get_input_val(component, - CTRL0_SPDIF_SEL); + unsigned int mux, changed; + + mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]); + changed = snd_soc_component_test_bits(component, TOHDMITX_CTRL0, + CTRL0_SPDIF_SEL, + FIELD_PREP(CTRL0_SPDIF_SEL, mux)); + + if (!changed) + return 0;

/* Force disconnect of the mux while updating */ - if (val != mux) - snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL); + snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);

snd_soc_component_update_bits(component, TOHDMITX_CTRL0, CTRL0_SPDIF_SEL | @@ -181,9 +114,13 @@ static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol, return 0; }

+static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_spdif_mux_enum, TOHDMITX_CTRL0, + CTRL0_SPDIF_SEL_SHIFT, + g12a_tohdmitx_spdif_mux_texts); + static const struct snd_kcontrol_new g12a_tohdmitx_spdif_mux = SOC_DAPM_ENUM_EXT("SPDIF Source", g12a_tohdmitx_spdif_mux_enum, - g12a_tohdmitx_spdif_mux_get_enum, + snd_soc_dapm_get_enum_double, g12a_tohdmitx_spdif_mux_put_enum);

static const struct snd_kcontrol_new g12a_tohdmitx_out_enable = @@ -201,83 +138,13 @@ static const struct snd_soc_dapm_widget g12a_tohdmitx_widgets[] = { &g12a_tohdmitx_out_enable), };

-static int g12a_tohdmitx_input_probe(struct snd_soc_dai *dai) -{ - struct g12a_tohdmitx_input *data; - - data = kzalloc(sizeof(*data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - dai->playback_dma_data = data; - return 0; -} - -static int g12a_tohdmitx_input_remove(struct snd_soc_dai *dai) -{ - kfree(dai->playback_dma_data); - return 0; -} - -static int g12a_tohdmitx_input_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct g12a_tohdmitx_input *data = dai->playback_dma_data; - - data->params.rates = snd_pcm_rate_to_rate_bit(params_rate(params)); - data->params.rate_min = params_rate(params); - data->params.rate_max = params_rate(params); - data->params.formats = 1 << params_format(params); - data->params.channels_min = params_channels(params); - data->params.channels_max = params_channels(params); - data->params.sig_bits = dai->driver->playback.sig_bits; - - return 0; -} - - -static int g12a_tohdmitx_input_set_fmt(struct snd_soc_dai *dai, - unsigned int fmt) -{ - struct g12a_tohdmitx_input *data = dai->playback_dma_data; - - /* Save the source stream format for the downstream link */ - data->fmt = fmt; - return 0; -} - -static int g12a_tohdmitx_output_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct g12a_tohdmitx_input *in_data = - g12a_tohdmitx_get_input_data(dai->capture_widget); - - if (!in_data) - return -ENODEV; - - if (WARN_ON(!rtd->dai_link->params)) { - dev_warn(dai->dev, "codec2codec link expected\n"); - return -EINVAL; - } - - /* Replace link params with the input params */ - rtd->dai_link->params = &in_data->params; - - if (!in_data->fmt) - return 0; - - return snd_soc_runtime_set_dai_fmt(rtd, in_data->fmt); -} - static const struct snd_soc_dai_ops g12a_tohdmitx_input_ops = { - .hw_params = g12a_tohdmitx_input_hw_params, - .set_fmt = g12a_tohdmitx_input_set_fmt, + .hw_params = meson_codec_glue_input_hw_params, + .set_fmt = meson_codec_glue_input_set_fmt, };

static const struct snd_soc_dai_ops g12a_tohdmitx_output_ops = { - .startup = g12a_tohdmitx_output_startup, + .startup = meson_codec_glue_output_startup, };

#define TOHDMITX_SPDIF_FORMATS \ @@ -304,8 +171,8 @@ static const struct snd_soc_dai_ops g12a_tohdmitx_output_ops = { .id = (xid), \ .playback = TOHDMITX_STREAM(xname, "Playback", xfmt, xchmax), \ .ops = &g12a_tohdmitx_input_ops, \ - .probe = g12a_tohdmitx_input_probe, \ - .remove = g12a_tohdmitx_input_remove, \ + .probe = meson_codec_glue_input_dai_probe, \ + .remove = meson_codec_glue_input_dai_remove, \ }

#define TOHDMITX_OUT(xname, xid, xfmt, xchmax) { \ diff --git a/sound/soc/meson/meson-codec-glue.c b/sound/soc/meson/meson-codec-glue.c new file mode 100644 index 0000000000000..97bbc967e1769 --- /dev/null +++ b/sound/soc/meson/meson-codec-glue.c @@ -0,0 +1,149 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2019 BayLibre, SAS. +// Author: Jerome Brunet jbrunet@baylibre.com + +#include <linux/module.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> + +#include "meson-codec-glue.h" + +static struct snd_soc_dapm_widget * +meson_codec_glue_get_input(struct snd_soc_dapm_widget *w) +{ + struct snd_soc_dapm_path *p = NULL; + struct snd_soc_dapm_widget *in; + + snd_soc_dapm_widget_for_each_source_path(w, p) { + if (!p->connect) + continue; + + /* Check that we still are in the same component */ + if (snd_soc_dapm_to_component(w->dapm) != + snd_soc_dapm_to_component(p->source->dapm)) + continue; + + if (p->source->id == snd_soc_dapm_dai_in) + return p->source; + + in = meson_codec_glue_get_input(p->source); + if (in) + return in; + } + + return NULL; +} + +static void meson_codec_glue_input_set_data(struct snd_soc_dai *dai, + struct meson_codec_glue_input *data) +{ + dai->playback_dma_data = data; +} + +struct meson_codec_glue_input * +meson_codec_glue_input_get_data(struct snd_soc_dai *dai) +{ + return dai->playback_dma_data; +} +EXPORT_SYMBOL_GPL(meson_codec_glue_input_get_data); + +static struct meson_codec_glue_input * +meson_codec_glue_output_get_input_data(struct snd_soc_dapm_widget *w) +{ + struct snd_soc_dapm_widget *in = + meson_codec_glue_get_input(w); + struct snd_soc_dai *dai; + + if (WARN_ON(!in)) + return NULL; + + dai = in->priv; + + return meson_codec_glue_input_get_data(dai); +} + +int meson_codec_glue_input_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct meson_codec_glue_input *data = + meson_codec_glue_input_get_data(dai); + + data->params.rates = snd_pcm_rate_to_rate_bit(params_rate(params)); + data->params.rate_min = params_rate(params); + data->params.rate_max = params_rate(params); + data->params.formats = 1 << params_format(params); + data->params.channels_min = params_channels(params); + data->params.channels_max = params_channels(params); + data->params.sig_bits = dai->driver->playback.sig_bits; + + return 0; +} +EXPORT_SYMBOL_GPL(meson_codec_glue_input_hw_params); + +int meson_codec_glue_input_set_fmt(struct snd_soc_dai *dai, + unsigned int fmt) +{ + struct meson_codec_glue_input *data = + meson_codec_glue_input_get_data(dai); + + /* Save the source stream format for the downstream link */ + data->fmt = fmt; + return 0; +} +EXPORT_SYMBOL_GPL(meson_codec_glue_input_set_fmt); + +int meson_codec_glue_output_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct meson_codec_glue_input *in_data = + meson_codec_glue_output_get_input_data(dai->capture_widget); + + if (!in_data) + return -ENODEV; + + if (WARN_ON(!rtd->dai_link->params)) { + dev_warn(dai->dev, "codec2codec link expected\n"); + return -EINVAL; + } + + /* Replace link params with the input params */ + rtd->dai_link->params = &in_data->params; + + if (!in_data->fmt) + return 0; + + return snd_soc_runtime_set_dai_fmt(rtd, in_data->fmt); +} +EXPORT_SYMBOL_GPL(meson_codec_glue_output_startup); + +int meson_codec_glue_input_dai_probe(struct snd_soc_dai *dai) +{ + struct meson_codec_glue_input *data; + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + meson_codec_glue_input_set_data(dai, data); + return 0; +} +EXPORT_SYMBOL_GPL(meson_codec_glue_input_dai_probe); + +int meson_codec_glue_input_dai_remove(struct snd_soc_dai *dai) +{ + struct meson_codec_glue_input *data = + meson_codec_glue_input_get_data(dai); + + kfree(data); + return 0; +} +EXPORT_SYMBOL_GPL(meson_codec_glue_input_dai_remove); + +MODULE_AUTHOR("Jerome Brunet jbrunet@baylibre.com"); +MODULE_DESCRIPTION("Amlogic Codec Glue Helpers"); +MODULE_LICENSE("GPL v2"); + diff --git a/sound/soc/meson/meson-codec-glue.h b/sound/soc/meson/meson-codec-glue.h new file mode 100644 index 0000000000000..07f99446c0c6b --- /dev/null +++ b/sound/soc/meson/meson-codec-glue.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (c) 2018 Baylibre SAS. + * Author: Jerome Brunet jbrunet@baylibre.com + */ + +#ifndef _MESON_CODEC_GLUE_H +#define _MESON_CODEC_GLUE_H + +#include <sound/soc.h> + +struct meson_codec_glue_input { + struct snd_soc_pcm_stream params; + unsigned int fmt; +}; + +/* Input helpers */ +struct meson_codec_glue_input * +meson_codec_glue_input_get_data(struct snd_soc_dai *dai); +int meson_codec_glue_input_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai); +int meson_codec_glue_input_set_fmt(struct snd_soc_dai *dai, + unsigned int fmt); +int meson_codec_glue_input_dai_probe(struct snd_soc_dai *dai); +int meson_codec_glue_input_dai_remove(struct snd_soc_dai *dai); + +/* Output helpers */ +int meson_codec_glue_output_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai); + +#endif /* _MESON_CODEC_GLUE_H */

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Mark Brown broonie@kernel.org

[ Upstream commit b036d8ef3120b996751495ce25994eea58032a98 ]

When a control changes value the return value from _put() should be 1 so we get events generated to userspace notifying applications of the change. While the I2S mux gets this right the S/PDIF mux does not, fix the return value.

Fixes: c8609f3870f7 ("ASoC: meson: add g12a tohdmitx control") Signed-off-by: Mark Brown broonie@kernel.org Link: https://lore.kernel.org/r/20240103-meson-enum-val-v1-4-424af7a8fb91@kernel.o... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/meson/g12a-tohdmitx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/meson/g12a-tohdmitx.c b/sound/soc/meson/g12a-tohdmitx.c index 2f44c138e1dee..c875c350be070 100644 --- a/sound/soc/meson/g12a-tohdmitx.c +++ b/sound/soc/meson/g12a-tohdmitx.c @@ -117,7 +117,7 @@ static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol,

snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);

- return 0; + return 1; }

static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_spdif_mux_enum, TOHDMITX_CTRL0,

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Christophe JAILLET christophe.jaillet@wanadoo.fr

[ Upstream commit 41fb4c1ba7478fe34c7e094e124e4ee4513b9763 ]

The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested.

When memory is allocated in 'ql_alloc_net_req_rsp_queues()' GFP_KERNEL can be used because it is only called from 'ql_alloc_mem_resources()' which already calls 'ql_alloc_buffer_queues()' which uses GFP_KERNEL. (see below)

When memory is allocated in 'ql_alloc_buffer_queues()' GFP_KERNEL can be used because this flag is already used just a few line above.

When memory is allocated in 'ql_alloc_small_buffers()' GFP_KERNEL can be used because it is only called from 'ql_alloc_mem_resources()' which already calls 'ql_alloc_buffer_queues()' which uses GFP_KERNEL. (see above)

When memory is allocated in 'ql_alloc_mem_resources()' GFP_KERNEL can be used because this function already calls 'ql_alloc_buffer_queues()' which uses GFP_KERNEL. (see above)

While at it, use 'dma_set_mask_and_coherent()' instead of 'dma_set_mask()/ dma_set_coherent_mask()' in order to slightly simplify code.

@@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL

@@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE

@@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE

@@ @@ - PCI_DMA_NONE + DMA_NONE

@@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4)

@@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4)

@@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4)

@@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5)

@@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4)

@@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4)

@@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4)

@@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2)

@@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2)

@@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2)

Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Link: https://lore.kernel.org/r/20210117081542.560021-1-christophe.jaillet@wanadoo... Signed-off-by: Jakub Kicinski kuba@kernel.org Stable-dep-of: 89f45c30172c ("net/qla3xxx: fix potential memleak in ql_alloc_buffer_queues") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/qlogic/qla3xxx.c | 196 ++++++++++++-------------- 1 file changed, 87 insertions(+), 109 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c index 2fa68592210d7..65cdf1bfbddb8 100644 --- a/drivers/net/ethernet/qlogic/qla3xxx.c +++ b/drivers/net/ethernet/qlogic/qla3xxx.c @@ -316,12 +316,11 @@ static void ql_release_to_lrg_buf_free_list(struct ql3_adapter *qdev, * buffer */ skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE); - map = pci_map_single(qdev->pdev, + map = dma_map_single(&qdev->pdev->dev, lrg_buf_cb->skb->data, - qdev->lrg_buffer_len - - QL_HEADER_SPACE, - PCI_DMA_FROMDEVICE); - err = pci_dma_mapping_error(qdev->pdev, map); + qdev->lrg_buffer_len - QL_HEADER_SPACE, + DMA_FROM_DEVICE); + err = dma_mapping_error(&qdev->pdev->dev, map); if (err) { netdev_err(qdev->ndev, "PCI mapping failed with error: %d\n", @@ -1803,13 +1802,12 @@ static int ql_populate_free_queue(struct ql3_adapter *qdev) * first buffer */ skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE); - map = pci_map_single(qdev->pdev, + map = dma_map_single(&qdev->pdev->dev, lrg_buf_cb->skb->data, - qdev->lrg_buffer_len - - QL_HEADER_SPACE, - PCI_DMA_FROMDEVICE); + qdev->lrg_buffer_len - QL_HEADER_SPACE, + DMA_FROM_DEVICE);

- err = pci_dma_mapping_error(qdev->pdev, map); + err = dma_mapping_error(&qdev->pdev->dev, map); if (err) { netdev_err(qdev->ndev, "PCI mapping failed with error: %d\n", @@ -1944,18 +1942,16 @@ static void ql_process_mac_tx_intr(struct ql3_adapter *qdev, goto invalid_seg_count; }

- pci_unmap_single(qdev->pdev, + dma_unmap_single(&qdev->pdev->dev, dma_unmap_addr(&tx_cb->map[0], mapaddr), - dma_unmap_len(&tx_cb->map[0], maplen), - PCI_DMA_TODEVICE); + dma_unmap_len(&tx_cb->map[0], maplen), DMA_TO_DEVICE); tx_cb->seg_count--; if (tx_cb->seg_count) { for (i = 1; i < tx_cb->seg_count; i++) { - pci_unmap_page(qdev->pdev, - dma_unmap_addr(&tx_cb->map[i], - mapaddr), + dma_unmap_page(&qdev->pdev->dev, + dma_unmap_addr(&tx_cb->map[i], mapaddr), dma_unmap_len(&tx_cb->map[i], maplen), - PCI_DMA_TODEVICE); + DMA_TO_DEVICE); } } qdev->ndev->stats.tx_packets++; @@ -2022,10 +2018,9 @@ static void ql_process_mac_rx_intr(struct ql3_adapter *qdev, qdev->ndev->stats.rx_bytes += length;

skb_put(skb, length); - pci_unmap_single(qdev->pdev, + dma_unmap_single(&qdev->pdev->dev, dma_unmap_addr(lrg_buf_cb2, mapaddr), - dma_unmap_len(lrg_buf_cb2, maplen), - PCI_DMA_FROMDEVICE); + dma_unmap_len(lrg_buf_cb2, maplen), DMA_FROM_DEVICE); prefetch(skb->data); skb_checksum_none_assert(skb); skb->protocol = eth_type_trans(skb, qdev->ndev); @@ -2068,10 +2063,9 @@ static void ql_process_macip_rx_intr(struct ql3_adapter *qdev, skb2 = lrg_buf_cb2->skb;

skb_put(skb2, length); /* Just the second buffer length here. */ - pci_unmap_single(qdev->pdev, + dma_unmap_single(&qdev->pdev->dev, dma_unmap_addr(lrg_buf_cb2, mapaddr), - dma_unmap_len(lrg_buf_cb2, maplen), - PCI_DMA_FROMDEVICE); + dma_unmap_len(lrg_buf_cb2, maplen), DMA_FROM_DEVICE); prefetch(skb2->data);

skb_checksum_none_assert(skb2); @@ -2320,9 +2314,9 @@ static int ql_send_map(struct ql3_adapter *qdev, /* * Map the skb buffer first. */ - map = pci_map_single(qdev->pdev, skb->data, len, PCI_DMA_TODEVICE); + map = dma_map_single(&qdev->pdev->dev, skb->data, len, DMA_TO_DEVICE);

- err = pci_dma_mapping_error(qdev->pdev, map); + err = dma_mapping_error(&qdev->pdev->dev, map); if (err) { netdev_err(qdev->ndev, "PCI mapping failed with error: %d\n", err); @@ -2358,11 +2352,11 @@ static int ql_send_map(struct ql3_adapter *qdev, (seg == 7 && seg_cnt > 8) || (seg == 12 && seg_cnt > 13) || (seg == 17 && seg_cnt > 18)) { - map = pci_map_single(qdev->pdev, oal, + map = dma_map_single(&qdev->pdev->dev, oal, sizeof(struct oal), - PCI_DMA_TODEVICE); + DMA_TO_DEVICE);

- err = pci_dma_mapping_error(qdev->pdev, map); + err = dma_mapping_error(&qdev->pdev->dev, map); if (err) { netdev_err(qdev->ndev, "PCI mapping outbound address list with error: %d\n", @@ -2424,24 +2418,24 @@ static int ql_send_map(struct ql3_adapter *qdev, (seg == 7 && seg_cnt > 8) || (seg == 12 && seg_cnt > 13) || (seg == 17 && seg_cnt > 18)) { - pci_unmap_single(qdev->pdev, - dma_unmap_addr(&tx_cb->map[seg], mapaddr), - dma_unmap_len(&tx_cb->map[seg], maplen), - PCI_DMA_TODEVICE); + dma_unmap_single(&qdev->pdev->dev, + dma_unmap_addr(&tx_cb->map[seg], mapaddr), + dma_unmap_len(&tx_cb->map[seg], maplen), + DMA_TO_DEVICE); oal++; seg++; }

- pci_unmap_page(qdev->pdev, + dma_unmap_page(&qdev->pdev->dev, dma_unmap_addr(&tx_cb->map[seg], mapaddr), dma_unmap_len(&tx_cb->map[seg], maplen), - PCI_DMA_TODEVICE); + DMA_TO_DEVICE); }

- pci_unmap_single(qdev->pdev, + dma_unmap_single(&qdev->pdev->dev, dma_unmap_addr(&tx_cb->map[0], mapaddr), dma_unmap_addr(&tx_cb->map[0], maplen), - PCI_DMA_TODEVICE); + DMA_TO_DEVICE);

return NETDEV_TX_BUSY;

@@ -2527,9 +2521,8 @@ static int ql_alloc_net_req_rsp_queues(struct ql3_adapter *qdev) wmb();

qdev->req_q_virt_addr = - pci_alloc_consistent(qdev->pdev, - (size_t) qdev->req_q_size, - &qdev->req_q_phy_addr); + dma_alloc_coherent(&qdev->pdev->dev, (size_t)qdev->req_q_size, + &qdev->req_q_phy_addr, GFP_KERNEL);

if ((qdev->req_q_virt_addr == NULL) || LS_64BITS(qdev->req_q_phy_addr) & (qdev->req_q_size - 1)) { @@ -2538,16 +2531,14 @@ static int ql_alloc_net_req_rsp_queues(struct ql3_adapter *qdev) }

qdev->rsp_q_virt_addr = - pci_alloc_consistent(qdev->pdev, - (size_t) qdev->rsp_q_size, - &qdev->rsp_q_phy_addr); + dma_alloc_coherent(&qdev->pdev->dev, (size_t)qdev->rsp_q_size, + &qdev->rsp_q_phy_addr, GFP_KERNEL);

if ((qdev->rsp_q_virt_addr == NULL) || LS_64BITS(qdev->rsp_q_phy_addr) & (qdev->rsp_q_size - 1)) { netdev_err(qdev->ndev, "rspQ allocation failed\n"); - pci_free_consistent(qdev->pdev, (size_t) qdev->req_q_size, - qdev->req_q_virt_addr, - qdev->req_q_phy_addr); + dma_free_coherent(&qdev->pdev->dev, (size_t)qdev->req_q_size, + qdev->req_q_virt_addr, qdev->req_q_phy_addr); return -ENOMEM; }

@@ -2563,15 +2554,13 @@ static void ql_free_net_req_rsp_queues(struct ql3_adapter *qdev) return; }

- pci_free_consistent(qdev->pdev, - qdev->req_q_size, - qdev->req_q_virt_addr, qdev->req_q_phy_addr); + dma_free_coherent(&qdev->pdev->dev, qdev->req_q_size, + qdev->req_q_virt_addr, qdev->req_q_phy_addr);

qdev->req_q_virt_addr = NULL;

- pci_free_consistent(qdev->pdev, - qdev->rsp_q_size, - qdev->rsp_q_virt_addr, qdev->rsp_q_phy_addr); + dma_free_coherent(&qdev->pdev->dev, qdev->rsp_q_size, + qdev->rsp_q_virt_addr, qdev->rsp_q_phy_addr);

qdev->rsp_q_virt_addr = NULL;

@@ -2595,9 +2584,9 @@ static int ql_alloc_buffer_queues(struct ql3_adapter *qdev) return -ENOMEM;

qdev->lrg_buf_q_alloc_virt_addr = - pci_alloc_consistent(qdev->pdev, - qdev->lrg_buf_q_alloc_size, - &qdev->lrg_buf_q_alloc_phy_addr); + dma_alloc_coherent(&qdev->pdev->dev, + qdev->lrg_buf_q_alloc_size, + &qdev->lrg_buf_q_alloc_phy_addr, GFP_KERNEL);

if (qdev->lrg_buf_q_alloc_virt_addr == NULL) { netdev_err(qdev->ndev, "lBufQ failed\n"); @@ -2615,15 +2604,16 @@ static int ql_alloc_buffer_queues(struct ql3_adapter *qdev) qdev->small_buf_q_alloc_size = qdev->small_buf_q_size * 2;

qdev->small_buf_q_alloc_virt_addr = - pci_alloc_consistent(qdev->pdev, - qdev->small_buf_q_alloc_size, - &qdev->small_buf_q_alloc_phy_addr); + dma_alloc_coherent(&qdev->pdev->dev, + qdev->small_buf_q_alloc_size, + &qdev->small_buf_q_alloc_phy_addr, GFP_KERNEL);

if (qdev->small_buf_q_alloc_virt_addr == NULL) { netdev_err(qdev->ndev, "Small Buffer Queue allocation failed\n"); - pci_free_consistent(qdev->pdev, qdev->lrg_buf_q_alloc_size, - qdev->lrg_buf_q_alloc_virt_addr, - qdev->lrg_buf_q_alloc_phy_addr); + dma_free_coherent(&qdev->pdev->dev, + qdev->lrg_buf_q_alloc_size, + qdev->lrg_buf_q_alloc_virt_addr, + qdev->lrg_buf_q_alloc_phy_addr); return -ENOMEM; }

@@ -2640,17 +2630,15 @@ static void ql_free_buffer_queues(struct ql3_adapter *qdev) return; } kfree(qdev->lrg_buf); - pci_free_consistent(qdev->pdev, - qdev->lrg_buf_q_alloc_size, - qdev->lrg_buf_q_alloc_virt_addr, - qdev->lrg_buf_q_alloc_phy_addr); + dma_free_coherent(&qdev->pdev->dev, qdev->lrg_buf_q_alloc_size, + qdev->lrg_buf_q_alloc_virt_addr, + qdev->lrg_buf_q_alloc_phy_addr);

qdev->lrg_buf_q_virt_addr = NULL;

- pci_free_consistent(qdev->pdev, - qdev->small_buf_q_alloc_size, - qdev->small_buf_q_alloc_virt_addr, - qdev->small_buf_q_alloc_phy_addr); + dma_free_coherent(&qdev->pdev->dev, qdev->small_buf_q_alloc_size, + qdev->small_buf_q_alloc_virt_addr, + qdev->small_buf_q_alloc_phy_addr);

qdev->small_buf_q_virt_addr = NULL;

@@ -2668,9 +2656,9 @@ static int ql_alloc_small_buffers(struct ql3_adapter *qdev) QL_SMALL_BUFFER_SIZE);

qdev->small_buf_virt_addr = - pci_alloc_consistent(qdev->pdev, - qdev->small_buf_total_size, - &qdev->small_buf_phy_addr); + dma_alloc_coherent(&qdev->pdev->dev, + qdev->small_buf_total_size, + &qdev->small_buf_phy_addr, GFP_KERNEL);

if (qdev->small_buf_virt_addr == NULL) { netdev_err(qdev->ndev, "Failed to get small buffer memory\n"); @@ -2703,10 +2691,10 @@ static void ql_free_small_buffers(struct ql3_adapter *qdev) return; } if (qdev->small_buf_virt_addr != NULL) { - pci_free_consistent(qdev->pdev, - qdev->small_buf_total_size, - qdev->small_buf_virt_addr, - qdev->small_buf_phy_addr); + dma_free_coherent(&qdev->pdev->dev, + qdev->small_buf_total_size, + qdev->small_buf_virt_addr, + qdev->small_buf_phy_addr);

qdev->small_buf_virt_addr = NULL; } @@ -2721,10 +2709,10 @@ static void ql_free_large_buffers(struct ql3_adapter *qdev) lrg_buf_cb = &qdev->lrg_buf[i]; if (lrg_buf_cb->skb) { dev_kfree_skb(lrg_buf_cb->skb); - pci_unmap_single(qdev->pdev, + dma_unmap_single(&qdev->pdev->dev, dma_unmap_addr(lrg_buf_cb, mapaddr), dma_unmap_len(lrg_buf_cb, maplen), - PCI_DMA_FROMDEVICE); + DMA_FROM_DEVICE); memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb)); } else { break; @@ -2776,13 +2764,11 @@ static int ql_alloc_large_buffers(struct ql3_adapter *qdev) * buffer */ skb_reserve(skb, QL_HEADER_SPACE); - map = pci_map_single(qdev->pdev, - skb->data, - qdev->lrg_buffer_len - - QL_HEADER_SPACE, - PCI_DMA_FROMDEVICE); + map = dma_map_single(&qdev->pdev->dev, skb->data, + qdev->lrg_buffer_len - QL_HEADER_SPACE, + DMA_FROM_DEVICE);

- err = pci_dma_mapping_error(qdev->pdev, map); + err = dma_mapping_error(&qdev->pdev->dev, map); if (err) { netdev_err(qdev->ndev, "PCI mapping failed with error: %d\n", @@ -2867,8 +2853,8 @@ static int ql_alloc_mem_resources(struct ql3_adapter *qdev) * Network Completion Queue Producer Index Register */ qdev->shadow_reg_virt_addr = - pci_alloc_consistent(qdev->pdev, - PAGE_SIZE, &qdev->shadow_reg_phy_addr); + dma_alloc_coherent(&qdev->pdev->dev, PAGE_SIZE, + &qdev->shadow_reg_phy_addr, GFP_KERNEL);

if (qdev->shadow_reg_virt_addr != NULL) { qdev->preq_consumer_index = qdev->shadow_reg_virt_addr; @@ -2923,10 +2909,9 @@ static int ql_alloc_mem_resources(struct ql3_adapter *qdev) err_buffer_queues: ql_free_net_req_rsp_queues(qdev); err_req_rsp: - pci_free_consistent(qdev->pdev, - PAGE_SIZE, - qdev->shadow_reg_virt_addr, - qdev->shadow_reg_phy_addr); + dma_free_coherent(&qdev->pdev->dev, PAGE_SIZE, + qdev->shadow_reg_virt_addr, + qdev->shadow_reg_phy_addr);

return -ENOMEM; } @@ -2939,10 +2924,9 @@ static void ql_free_mem_resources(struct ql3_adapter *qdev) ql_free_buffer_queues(qdev); ql_free_net_req_rsp_queues(qdev); if (qdev->shadow_reg_virt_addr != NULL) { - pci_free_consistent(qdev->pdev, - PAGE_SIZE, - qdev->shadow_reg_virt_addr, - qdev->shadow_reg_phy_addr); + dma_free_coherent(&qdev->pdev->dev, PAGE_SIZE, + qdev->shadow_reg_virt_addr, + qdev->shadow_reg_phy_addr); qdev->shadow_reg_virt_addr = NULL; } } @@ -3643,18 +3627,15 @@ static void ql_reset_work(struct work_struct *work) if (tx_cb->skb) { netdev_printk(KERN_DEBUG, ndev, "Freeing lost SKB\n"); - pci_unmap_single(qdev->pdev, - dma_unmap_addr(&tx_cb->map[0], - mapaddr), - dma_unmap_len(&tx_cb->map[0], maplen), - PCI_DMA_TODEVICE); + dma_unmap_single(&qdev->pdev->dev, + dma_unmap_addr(&tx_cb->map[0], mapaddr), + dma_unmap_len(&tx_cb->map[0], maplen), + DMA_TO_DEVICE); for (j = 1; j < tx_cb->seg_count; j++) { - pci_unmap_page(qdev->pdev, - dma_unmap_addr(&tx_cb->map[j], - mapaddr), - dma_unmap_len(&tx_cb->map[j], - maplen), - PCI_DMA_TODEVICE); + dma_unmap_page(&qdev->pdev->dev, + dma_unmap_addr(&tx_cb->map[j], mapaddr), + dma_unmap_len(&tx_cb->map[j], maplen), + DMA_TO_DEVICE); } dev_kfree_skb(tx_cb->skb); tx_cb->skb = NULL; @@ -3786,13 +3767,10 @@ static int ql3xxx_probe(struct pci_dev *pdev,

pci_set_master(pdev);

- if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { + if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) pci_using_dac = 1; - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); - } else if (!(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) { + else if (!(err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) pci_using_dac = 0; - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); - }

if (err) { pr_err("%s no usable DMA configuration\n", pci_name(pdev));

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Chen Ni nichen@iscas.ac.cn

[ Upstream commit eaac6a2d26b65511e164772bec6918fcbc61938e ]

Add check for usbnet_get_endpoints() and return the error if it fails in order to transfer the error.

Fixes: 16626b0cc3d5 ("asix: Add a new driver for the AX88172A") Signed-off-by: Chen Ni nichen@iscas.ac.cn Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/usb/ax88172a.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/usb/ax88172a.c b/drivers/net/usb/ax88172a.c index 6101d82102e79..bf65262e2256d 100644 --- a/drivers/net/usb/ax88172a.c +++ b/drivers/net/usb/ax88172a.c @@ -186,7 +186,9 @@ static int ax88172a_bind(struct usbnet *dev, struct usb_interface *intf) u8 buf[ETH_ALEN]; struct ax88172a_private *priv;

- usbnet_get_endpoints(dev, intf); + ret = usbnet_get_endpoints(dev, intf); + if (ret) + return ret;

priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv)

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Thomas Lange thomas@corelatus.se

[ Upstream commit 382a32018b74f407008615e0e831d05ed28e81cd ]

Commit 9718475e6908 ("socket: Add SO_TIMESTAMPING_NEW") added the new socket option SO_TIMESTAMPING_NEW. However, it was never implemented in __sock_cmsg_send thus breaking SO_TIMESTAMPING cmsg for platforms using SO_TIMESTAMPING_NEW.

Fixes: 9718475e6908 ("socket: Add SO_TIMESTAMPING_NEW") Link: https://lore.kernel.org/netdev/6a7281bf-bc4a-4f75-bb88-7011908ae471@app.fast... Signed-off-by: Thomas Lange thomas@corelatus.se Reviewed-by: Willem de Bruijn willemb@google.com Link: https://lore.kernel.org/r/20240104085744.49164-1-thomas@corelatus.se Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/core/sock.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/net/core/sock.c b/net/core/sock.c index a3ca522434a6e..42076a3e12c3c 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2310,6 +2310,7 @@ int __sock_cmsg_send(struct sock *sk, struct msghdr *msg, struct cmsghdr *cmsg, sockc->mark = *(u32 *)CMSG_DATA(cmsg); break; case SO_TIMESTAMPING_OLD: + case SO_TIMESTAMPING_NEW: if (cmsg->cmsg_len != CMSG_LEN(sizeof(u32))) return -EINVAL;

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Takashi Sakamoto o-takashi@sakamocchi.jp

commit ac9184fbb8478dab4a0724b279f94956b69be827 upstream.

VIA VT6306/6307/6308 provides PCI interface compliant to 1394 OHCI. When the hardware is combined with Asmedia ASM1083/1085 PCIe-to-PCI bus bridge, it appears that accesses to its 'Isochronous Cycle Timer' register (offset 0xf0 on PCI memory space) often causes unexpected system reboot in any type of AMD Ryzen machine (both 0x17 and 0x19 families). It does not appears in the other type of machine (AMD pre-Ryzen machine, Intel machine, at least), or in the other OHCI 1394 hardware (e.g. Texas Instruments).

The issue explicitly appears at a commit dcadfd7f7c74 ("firewire: core: use union for callback of transaction completion") added to v6.5 kernel. It changed 1394 OHCI driver to access to the register every time to dispatch local asynchronous transaction. However, the issue exists in older version of kernel as long as it runs in AMD Ryzen machine, since the access to the register is required to maintain bus time. It is not hard to imagine that users experience the unexpected system reboot when generating bus reset by plugging any devices in, or reading the register by time-aware application programs; e.g. audio sample processing.

This commit suppresses the unexpected system reboot in the combination of hardware. It avoids the access itself. As a result, the software stack can not provide the hardware time anymore to unit drivers, userspace applications, and nodes in the same IEEE 1394 bus. It brings apparent disadvantage since time-aware application programs require it, while time-unaware applications are available again; e.g. sbp2.

Cc: stable@vger.kernel.org Reported-by: Jiri Slaby jirislaby@kernel.org Closes: https://bugzilla.suse.com/show_bug.cgi?id=1215436 Reported-by: Mario Limonciello mario.limonciello@amd.com Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217994 Reported-by: Tobias Gruetzmacher tobias-lists@23.gs Closes: https://sourceforge.net/p/linux1394/mailman/message/58711901/ Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2240973 Closes: https://bugs.launchpad.net/linux/+bug/2043905 Link: https://lore.kernel.org/r/20240102110150.244475-1-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/firewire/ohci.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+)

--- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -279,6 +279,51 @@ static char ohci_driver_name[] = KBUILD_ #define QUIRK_TI_SLLZ059 0x20 #define QUIRK_IR_WAKE 0x40

+// On PCI Express Root Complex in any type of AMD Ryzen machine, VIA VT6306/6307/6308 with Asmedia +// ASM1083/1085 brings an inconvenience that the read accesses to 'Isochronous Cycle Timer' register +// (at offset 0xf0 in PCI I/O space) often causes unexpected system reboot. The mechanism is not +// clear, since the read access to the other registers is enough safe; e.g. 'Node ID' register, +// while it is probable due to detection of any type of PCIe error. +#define QUIRK_REBOOT_BY_CYCLE_TIMER_READ 0x80000000 + +#if IS_ENABLED(CONFIG_X86) + +static bool has_reboot_by_cycle_timer_read_quirk(const struct fw_ohci *ohci) +{ + return !!(ohci->quirks & QUIRK_REBOOT_BY_CYCLE_TIMER_READ); +} + +#define PCI_DEVICE_ID_ASMEDIA_ASM108X 0x1080 + +static bool detect_vt630x_with_asm1083_on_amd_ryzen_machine(const struct pci_dev *pdev) +{ + const struct pci_dev *pcie_to_pci_bridge; + + // Detect any type of AMD Ryzen machine. + if (!static_cpu_has(X86_FEATURE_ZEN)) + return false; + + // Detect VIA VT6306/6307/6308. + if (pdev->vendor != PCI_VENDOR_ID_VIA) + return false; + if (pdev->device != PCI_DEVICE_ID_VIA_VT630X) + return false; + + // Detect Asmedia ASM1083/1085. + pcie_to_pci_bridge = pdev->bus->self; + if (pcie_to_pci_bridge->vendor != PCI_VENDOR_ID_ASMEDIA) + return false; + if (pcie_to_pci_bridge->device != PCI_DEVICE_ID_ASMEDIA_ASM108X) + return false; + + return true; +} + +#else +#define has_reboot_by_cycle_timer_read_quirk(ohci) false +#define detect_vt630x_with_asm1083_on_amd_ryzen_machine(pdev) false +#endif + /* In case of multiple matches in ohci_quirks[], only the first one is used. */ static const struct { unsigned short vendor, device, revision, flags; @@ -1717,6 +1762,9 @@ static u32 get_cycle_time(struct fw_ohci s32 diff01, diff12; int i;

+ if (has_reboot_by_cycle_timer_read_quirk(ohci)) + return 0; + c2 = reg_read(ohci, OHCI1394_IsochronousCycleTimer);

if (ohci->quirks & QUIRK_CYCLE_TIMER) { @@ -3619,6 +3667,9 @@ static int pci_probe(struct pci_dev *dev if (param_quirks) ohci->quirks = param_quirks;

+ if (detect_vt630x_with_asm1083_on_amd_ryzen_machine(dev)) + ohci->quirks |= QUIRK_REBOOT_BY_CYCLE_TIMER_READ; + /* * Because dma_alloc_coherent() allocates at least one page, * we save space by using a common buffer for the AR request/

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Jiajun Xie jiajun.xie.sh@gmail.com

commit 9eab0421fa94a3dde0d1f7e36ab3294fc306c99d upstream.

The bug happens when highest bit of holebegin is 1, suppose holebegin is 0x8000000111111000, after shift, hba would be 0xfff8000000111111, then vma_interval_tree_foreach would look it up fail or leads to the wrong result.

error call seq e.g.: - mmap(..., offset=0x8000000111111000) |- syscall(mmap, ... unsigned long, off): |- ksys_mmap_pgoff( ... , off >> PAGE_SHIFT);

here pgoff is correctly shifted to 0x8000000111111, but pass 0x8000000111111000 as holebegin to unmap would then cause terrible result, as shown below:

- unmap_mapping_range(..., loff_t const holebegin) |- pgoff_t hba = holebegin >> PAGE_SHIFT; /* hba = 0xfff8000000111111 unexpectedly */

The issue happens in Heterogeneous computing, where the device(e.g. gpu) and host share the same virtual address space.

A simple workflow pattern which hit the issue is: /* host */ 1. userspace first mmap a file backed VA range with specified offset. e.g. (offset=0x800..., mmap return: va_a) 2. write some data to the corresponding sys page e.g. (va_a = 0xAABB) /* device */ 3. gpu workload touches VA, triggers gpu fault and notify the host. /* host */ 4. reviced gpu fault notification, then it will: 4.1 unmap host pages and also takes care of cpu tlb (use unmap_mapping_range with offset=0x800...) 4.2 migrate sys page to device 4.3 setup device page table and resolve device fault. /* device */ 5. gpu workload continued, it accessed va_a and got 0xAABB. 6. gpu workload continued, it wrote 0xBBCC to va_a. /* host */ 7. userspace access va_a, as expected, it will: 7.1 trigger cpu vm fault. 7.2 driver handling fault to migrate gpu local page to host. 8. userspace then could correctly get 0xBBCC from va_a 9. done

But in step 4.1, if we hit the bug this patch mentioned, then userspace would never trigger cpu fault, and still get the old value: 0xAABB.

Making holebegin unsigned first fixes the bug.

Link: https://lkml.kernel.org/r/20231220052839.26970-1-jiajun.xie.sh@gmail.com Signed-off-by: Jiajun Xie jiajun.xie.sh@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- mm/memory.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/mm/memory.c +++ b/mm/memory.c @@ -2872,8 +2872,8 @@ void unmap_mapping_pages(struct address_ void unmap_mapping_range(struct address_space *mapping, loff_t const holebegin, loff_t const holelen, int even_cows) { - pgoff_t hba = holebegin >> PAGE_SHIFT; - pgoff_t hlen = (holelen + PAGE_SIZE - 1) >> PAGE_SHIFT; + pgoff_t hba = (pgoff_t)(holebegin) >> PAGE_SHIFT; + pgoff_t hlen = ((pgoff_t)(holelen) + PAGE_SIZE - 1) >> PAGE_SHIFT;

/* Check for overflow. */ if (sizeof(holelen) > sizeof(hlen)) {

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Geert Uytterhoeven geert+renesas@glider.be

commit 1036f69e251380573e256568cf814506e3fb9988 upstream.

On RZ/Five SMARC EVK, where probing of SDHI is deferred due to probe deferral of the vqmmc-supply regulator:

------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at kernel/time/timer.c:1738 __run_timers.part.0+0x1d0/0x1e8 Modules linked in: CPU: 0 PID: 0 Comm: swapper Not tainted 6.7.0-rc4 #101 Hardware name: Renesas SMARC EVK based on r9a07g043f01 (DT) epc : __run_timers.part.0+0x1d0/0x1e8 ra : __run_timers.part.0+0x134/0x1e8 epc : ffffffff800771a4 ra : ffffffff80077108 sp : ffffffc800003e60 gp : ffffffff814f5028 tp : ffffffff8140c5c0 t0 : ffffffc800000000 t1 : 0000000000000001 t2 : ffffffff81201300 s0 : ffffffc800003f20 s1 : ffffffd8023bc4a0 a0 : 00000000fffee6b0 a1 : 0004010000400000 a2 : ffffffffc0000016 a3 : ffffffff81488640 a4 : ffffffc800003e60 a5 : 0000000000000000 a6 : 0000000004000000 a7 : ffffffc800003e68 s2 : 0000000000000122 s3 : 0000000000200000 s4 : 0000000000000000 s5 : ffffffffffffffff s6 : ffffffff81488678 s7 : ffffffff814886c0 s8 : ffffffff814f49c0 s9 : ffffffff81488640 s10: 0000000000000000 s11: ffffffc800003e60 t3 : 0000000000000240 t4 : 0000000000000a52 t5 : ffffffd8024ae018 t6 : ffffffd8024ae038 status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003 [<ffffffff800771a4>] __run_timers.part.0+0x1d0/0x1e8 [<ffffffff800771e0>] run_timer_softirq+0x24/0x4a [<ffffffff80809092>] __do_softirq+0xc6/0x1fa [<ffffffff80028e4c>] irq_exit_rcu+0x66/0x84 [<ffffffff80800f7a>] handle_riscv_irq+0x40/0x4e [<ffffffff80808f48>] call_on_irq_stack+0x1c/0x28 ---[ end trace 0000000000000000 ]---

What happens?

renesas_sdhi_probe() { tmio_mmc_host_alloc() mmc_alloc_host() INIT_DELAYED_WORK(&host->detect, mmc_rescan);

devm_request_irq(tmio_mmc_irq);

/* * After this, the interrupt handler may be invoked at any time * * tmio_mmc_irq() * { * __tmio_mmc_card_detect_irq() * mmc_detect_change() * _mmc_detect_change() * mmc_schedule_delayed_work(&host->detect, delay); * } */

tmio_mmc_host_probe() tmio_mmc_init_ocr() -EPROBE_DEFER

tmio_mmc_host_free() mmc_free_host() }

When expire_timers() runs later, it warns because the MMC host structure containing the delayed work was freed, and now contains an invalid work function pointer.

Fix this by cancelling any pending delayed work before releasing the MMC host structure.

Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Tested-by: Lad Prabhakar prabhakar.mahadev-lad.rj@bp.renesas.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/205dc4c91b47e31b64392fe2498c7a449e717b4b.170168933... Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/mmc/core/host.c | 1 + 1 file changed, 1 insertion(+)

--- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -570,6 +570,7 @@ EXPORT_SYMBOL(mmc_remove_host); */ void mmc_free_host(struct mmc_host *host) { + cancel_delayed_work_sync(&host->detect); mmc_pwrseq_free(host); put_device(&host->class_dev); }

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Douglas Anderson dianders@chromium.org

[ Upstream commit 8f9ed93d09a97444733d492a3bbf66bcb786a777 ]

On wcn3990 we have "per_ce_irq = true". That makes the ath10k_ce_interrupt_summary() function always return 0xfff. The ath10k_ce_per_engine_service_any() function will see this and think that _all_ copy engines have an interrupt. Without checking, the ath10k_ce_per_engine_service() assumes that if it's called that the "copy complete" (cc) interrupt fired. This combination seems bad.

Let's add a check to make sure that the "copy complete" interrupt actually fired in ath10k_ce_per_engine_service().

This might fix a hard-to-reproduce failure where it appears that the copy complete handlers run before the copy is really complete. Specifically a symptom was that we were seeing this on a Qualcomm sc7180 board: arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0x7fdd45780, fsynr=0x30003, cbfrsynra=0xc1, cb=10

Even on platforms that don't have wcn3990 this still seems like it would be a sane thing to do. Specifically the current IRQ handler comments indicate that there might be other misc interrupt sources firing that need to be cleared. If one of those sources was the one that caused the IRQ handler to be called it would also be important to double-check that the interrupt we cared about actually fired.

Tested-on: WCN3990 SNOC WLAN.HL.3.2.2-00490-QCAHLSWMTPL-1

Signed-off-by: Douglas Anderson dianders@chromium.org Signed-off-by: Kalle Valo kvalo@codeaurora.org Link: https://lore.kernel.org/r/20200609082015.1.Ife398994e5a0a6830e4d4a16306ef36e... Stable-dep-of: 170c75d43a77 ("ath10k: Don't touch the CE interrupt registers after power up") Signed-off-by: Amit Pundir amit.pundir@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/ath/ath10k/ce.c | 30 +++++++++++++++++++++--------- 1 file changed, 21 insertions(+), 9 deletions(-)

--- a/drivers/net/wireless/ath/ath10k/ce.c +++ b/drivers/net/wireless/ath/ath10k/ce.c @@ -481,6 +481,15 @@ static inline void ath10k_ce_engine_int_ ath10k_ce_write32(ar, ce_ctrl_addr + wm_regs->addr, mask); }

+static inline bool ath10k_ce_engine_int_status_check(struct ath10k *ar, + u32 ce_ctrl_addr, + unsigned int mask) +{ + struct ath10k_hw_ce_host_wm_regs *wm_regs = ar->hw_ce_regs->wm_regs; + + return ath10k_ce_read32(ar, ce_ctrl_addr + wm_regs->addr) & mask; +} + /* * Guts of ath10k_ce_send. * The caller takes responsibility for any needed locking. @@ -1301,19 +1310,22 @@ void ath10k_ce_per_engine_service(struct

spin_lock_bh(&ce->ce_lock);

- /* Clear the copy-complete interrupts that will be handled here. */ - ath10k_ce_engine_int_status_clear(ar, ctrl_addr, - wm_regs->cc_mask); + if (ath10k_ce_engine_int_status_check(ar, ctrl_addr, + wm_regs->cc_mask)) { + /* Clear before handling */ + ath10k_ce_engine_int_status_clear(ar, ctrl_addr, + wm_regs->cc_mask);

- spin_unlock_bh(&ce->ce_lock); + spin_unlock_bh(&ce->ce_lock);

- if (ce_state->recv_cb) - ce_state->recv_cb(ce_state); + if (ce_state->recv_cb) + ce_state->recv_cb(ce_state);

- if (ce_state->send_cb) - ce_state->send_cb(ce_state); + if (ce_state->send_cb) + ce_state->send_cb(ce_state);

- spin_lock_bh(&ce->ce_lock); + spin_lock_bh(&ce->ce_lock); + }

/* * Misc CE interrupts are not being handled, but still need

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Douglas Anderson dianders@chromium.org

[ Upstream commit d66d24ac300cf41c6b88367fc9b4b6348679273d ]

If we have a per CE (Copy Engine) IRQ then we have no summary register. Right now the code generates a summary register by iterating over all copy engines and seeing if they have an interrupt pending.

This has a problem. Specifically if _none_ if the Copy Engines have an interrupt pending then they might go into low power mode and reading from their address space will cause a full system crash. This was seen to happen when two interrupts went off at nearly the same time. Both were handled by a single call of ath10k_snoc_napi_poll() but, because there were two interrupts handled and thus two calls to napi_schedule() there was still a second call to ath10k_snoc_napi_poll() which ran with no interrupts pending.

Instead of iterating over all the copy engines, let's just keep track of the IRQs that fire. Then we can effectively generate our own summary without ever needing to read the Copy Engines.

Tested-on: WCN3990 SNOC WLAN.HL.3.2.2-00490-QCAHLSWMTPL-1

Signed-off-by: Douglas Anderson dianders@chromium.org Reviewed-by: Rakesh Pillai pillair@codeaurora.org Reviewed-by: Brian Norris briannorris@chromium.org Signed-off-by: Kalle Valo kvalo@codeaurora.org Link: https://lore.kernel.org/r/20200709082024.v2.1.I4d2f85ffa06f38532631e864a3125... Stable-dep-of: 170c75d43a77 ("ath10k: Don't touch the CE interrupt registers after power up") Signed-off-by: Amit Pundir amit.pundir@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/ath/ath10k/ce.c | 84 ++++++++++++--------------------- drivers/net/wireless/ath/ath10k/ce.h | 14 ++--- drivers/net/wireless/ath/ath10k/snoc.c | 19 +++++-- drivers/net/wireless/ath/ath10k/snoc.h | 1 4 files changed, 52 insertions(+), 66 deletions(-)

--- a/drivers/net/wireless/ath/ath10k/ce.c +++ b/drivers/net/wireless/ath/ath10k/ce.c @@ -481,38 +481,6 @@ static inline void ath10k_ce_engine_int_ ath10k_ce_write32(ar, ce_ctrl_addr + wm_regs->addr, mask); }

-static bool ath10k_ce_engine_int_status_check(struct ath10k *ar, u32 ce_ctrl_addr, - unsigned int mask) -{ - struct ath10k_hw_ce_host_wm_regs *wm_regs = ar->hw_ce_regs->wm_regs; - - return ath10k_ce_read32(ar, ce_ctrl_addr + wm_regs->addr) & mask; -} - -u32 ath10k_ce_gen_interrupt_summary(struct ath10k *ar) -{ - struct ath10k_hw_ce_host_wm_regs *wm_regs = ar->hw_ce_regs->wm_regs; - struct ath10k_ce_pipe *ce_state; - struct ath10k_ce *ce; - u32 irq_summary = 0; - u32 ctrl_addr; - u32 ce_id; - - ce = ath10k_ce_priv(ar); - - for (ce_id = 0; ce_id < CE_COUNT; ce_id++) { - ce_state = &ce->ce_states[ce_id]; - ctrl_addr = ce_state->ctrl_addr; - if (ath10k_ce_engine_int_status_check(ar, ctrl_addr, - wm_regs->cc_mask)) { - irq_summary |= BIT(ce_id); - } - } - - return irq_summary; -} -EXPORT_SYMBOL(ath10k_ce_gen_interrupt_summary); - /* * Guts of ath10k_ce_send. * The caller takes responsibility for any needed locking. @@ -1399,45 +1367,55 @@ static void ath10k_ce_per_engine_handler ath10k_ce_watermark_intr_disable(ar, ctrl_addr); }

-int ath10k_ce_disable_interrupts(struct ath10k *ar) +void ath10k_ce_disable_interrupt(struct ath10k *ar, int ce_id) { struct ath10k_ce *ce = ath10k_ce_priv(ar); struct ath10k_ce_pipe *ce_state; u32 ctrl_addr; - int ce_id;

- for (ce_id = 0; ce_id < CE_COUNT; ce_id++) { - ce_state = &ce->ce_states[ce_id]; - if (ce_state->attr_flags & CE_ATTR_POLL) - continue; + ce_state = &ce->ce_states[ce_id]; + if (ce_state->attr_flags & CE_ATTR_POLL) + return;

- ctrl_addr = ath10k_ce_base_address(ar, ce_id); + ctrl_addr = ath10k_ce_base_address(ar, ce_id);

- ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr); - ath10k_ce_error_intr_disable(ar, ctrl_addr); - ath10k_ce_watermark_intr_disable(ar, ctrl_addr); - } + ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr); + ath10k_ce_error_intr_disable(ar, ctrl_addr); + ath10k_ce_watermark_intr_disable(ar, ctrl_addr); +} +EXPORT_SYMBOL(ath10k_ce_disable_interrupt);

- return 0; +void ath10k_ce_disable_interrupts(struct ath10k *ar) +{ + int ce_id; + + for (ce_id = 0; ce_id < CE_COUNT; ce_id++) + ath10k_ce_disable_interrupt(ar, ce_id); } EXPORT_SYMBOL(ath10k_ce_disable_interrupts);

-void ath10k_ce_enable_interrupts(struct ath10k *ar) +void ath10k_ce_enable_interrupt(struct ath10k *ar, int ce_id) { struct ath10k_ce *ce = ath10k_ce_priv(ar); - int ce_id; struct ath10k_ce_pipe *ce_state;

+ ce_state = &ce->ce_states[ce_id]; + if (ce_state->attr_flags & CE_ATTR_POLL) + return; + + ath10k_ce_per_engine_handler_adjust(ce_state); +} +EXPORT_SYMBOL(ath10k_ce_enable_interrupt); + +void ath10k_ce_enable_interrupts(struct ath10k *ar) +{ + int ce_id; + /* Enable interrupts for copy engine that * are not using polling mode. */ - for (ce_id = 0; ce_id < CE_COUNT; ce_id++) { - ce_state = &ce->ce_states[ce_id]; - if (ce_state->attr_flags & CE_ATTR_POLL) - continue; - - ath10k_ce_per_engine_handler_adjust(ce_state); - } + for (ce_id = 0; ce_id < CE_COUNT; ce_id++) + ath10k_ce_enable_interrupt(ar, ce_id); } EXPORT_SYMBOL(ath10k_ce_enable_interrupts);

--- a/drivers/net/wireless/ath/ath10k/ce.h +++ b/drivers/net/wireless/ath/ath10k/ce.h @@ -255,12 +255,13 @@ int ath10k_ce_cancel_send_next(struct at /*==================CE Interrupt Handlers====================*/ void ath10k_ce_per_engine_service_any(struct ath10k *ar); void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id); -int ath10k_ce_disable_interrupts(struct ath10k *ar); +void ath10k_ce_disable_interrupt(struct ath10k *ar, int ce_id); +void ath10k_ce_disable_interrupts(struct ath10k *ar); +void ath10k_ce_enable_interrupt(struct ath10k *ar, int ce_id); void ath10k_ce_enable_interrupts(struct ath10k *ar); void ath10k_ce_dump_registers(struct ath10k *ar, struct ath10k_fw_crash_data *crash_data);

-u32 ath10k_ce_gen_interrupt_summary(struct ath10k *ar); void ath10k_ce_alloc_rri(struct ath10k *ar); void ath10k_ce_free_rri(struct ath10k *ar);

@@ -376,12 +377,9 @@ static inline u32 ath10k_ce_interrupt_su { struct ath10k_ce *ce = ath10k_ce_priv(ar);

- if (!ar->hw_params.per_ce_irq) - return CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_GET( - ce->bus_ops->read32((ar), CE_WRAPPER_BASE_ADDRESS + - CE_WRAPPER_INTERRUPT_SUMMARY_ADDRESS)); - else - return ath10k_ce_gen_interrupt_summary(ar); + return CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_GET( + ce->bus_ops->read32((ar), CE_WRAPPER_BASE_ADDRESS + + CE_WRAPPER_INTERRUPT_SUMMARY_ADDRESS)); }

/* Host software's Copy Engine configuration. */ --- a/drivers/net/wireless/ath/ath10k/snoc.c +++ b/drivers/net/wireless/ath/ath10k/snoc.c @@ -3,6 +3,7 @@ * Copyright (c) 2018 The Linux Foundation. All rights reserved. */

+#include <linux/bits.h> #include <linux/clk.h> #include <linux/kernel.h> #include <linux/module.h> @@ -927,6 +928,7 @@ static int ath10k_snoc_hif_start(struct { struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);

+ bitmap_clear(ar_snoc->pending_ce_irqs, 0, CE_COUNT_MAX); napi_enable(&ar->napi); ath10k_snoc_irq_enable(ar); ath10k_snoc_rx_post(ar); @@ -1166,7 +1168,9 @@ static irqreturn_t ath10k_snoc_per_engin return IRQ_HANDLED; }

- ath10k_snoc_irq_disable(ar); + ath10k_ce_disable_interrupt(ar, ce_id); + set_bit(ce_id, ar_snoc->pending_ce_irqs); + napi_schedule(&ar->napi);

return IRQ_HANDLED; @@ -1175,20 +1179,25 @@ static irqreturn_t ath10k_snoc_per_engin static int ath10k_snoc_napi_poll(struct napi_struct *ctx, int budget) { struct ath10k *ar = container_of(ctx, struct ath10k, napi); + struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); int done = 0; + int ce_id;

if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags)) { napi_complete(ctx); return done; }

- ath10k_ce_per_engine_service_any(ar); + for (ce_id = 0; ce_id < CE_COUNT; ce_id++) + if (test_and_clear_bit(ce_id, ar_snoc->pending_ce_irqs)) { + ath10k_ce_per_engine_service(ar, ce_id); + ath10k_ce_enable_interrupt(ar, ce_id); + } + done = ath10k_htt_txrx_compl_task(ar, budget);

- if (done < budget) { + if (done < budget) napi_complete(ctx); - ath10k_snoc_irq_enable(ar); - }

return done; } --- a/drivers/net/wireless/ath/ath10k/snoc.h +++ b/drivers/net/wireless/ath/ath10k/snoc.h @@ -81,6 +81,7 @@ struct ath10k_snoc { struct ath10k_clk_info *clk; struct ath10k_qmi *qmi; unsigned long flags; + DECLARE_BITMAP(pending_ce_irqs, CE_COUNT_MAX); };

static inline struct ath10k_snoc *ath10k_snoc_priv(struct ath10k *ar)

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: John Fastabend john.fastabend@gmail.com

commit c5a595000e2677e865a39f249c056bc05d6e55fd upstream.

The curr pointer must also be updated on the splice similar to how we do this for other copy types.

Fixes: d829e9c4112b ("tls: convert to generic sk_msg interface") Signed-off-by: John Fastabend john.fastabend@gmail.com Reported-by: Jann Horn jannh@google.com Link: https://lore.kernel.org/r/20231206232706.374377-2-john.fastabend@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/tls/tls_sw.c | 2 ++ 1 file changed, 2 insertions(+)

--- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -1211,6 +1211,8 @@ alloc_payload: }

sk_msg_page_add(msg_pl, page, copy, offset); + msg_pl->sg.copybreak = 0; + msg_pl->sg.curr = msg_pl->sg.end; sk_mem_charge(sk, copy);

offset += copy;

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Bartosz Pawlowski bartosz.pawlowski@intel.com

commit f18b1137d38c091cc8c16365219f0a1d4a30b3d1 upstream.

Introduce quirk_no_ats() helper function to provide a standard way to disable ATS capability in PCI quirks.

Suggested-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Link: https://lore.kernel.org/r/20230908143606.685930-2-bartosz.pawlowski@intel.co... Signed-off-by: Bartosz Pawlowski bartosz.pawlowski@intel.com Signed-off-by: Bjorn Helgaas bhelgaas@google.com Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pci/quirks.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)

--- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5389,6 +5389,12 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SE DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0422, quirk_no_ext_tags);

#ifdef CONFIG_PCI_ATS +static void quirk_no_ats(struct pci_dev *pdev) +{ + pci_info(pdev, "disabling ATS\n"); + pdev->ats_cap = 0; +} + /* * Some devices require additional driver setup to enable ATS. Don't use * ATS for those devices as ATS will be enabled before the driver has had a @@ -5401,8 +5407,7 @@ static void quirk_amd_harvest_no_ats(str (pdev->device == 0x7341 && pdev->revision != 0x00)) return;

- pci_info(pdev, "disabling ATS\n"); - pdev->ats_cap = 0; + quirk_no_ats(pdev); }

/* AMD Stoney platform GPU */

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Eric Dumazet edumazet@google.com

commit cf86a086a18095e33e0637cb78cda1fcf5280852 upstream.

percpu_counter_add() uses a default batch size which is quite big on platforms with 256 cpus. (2*256 -> 512)

This means dst_entries_get_fast() can be off by +/- 2*(nr_cpus^2) (131072 on servers with 256 cpus)

Reduce the batch size to something more reasonable, and add logic to ip6_dst_gc() to call dst_entries_get_slow() before calling the _very_ expensive fib6_run_gc() function.

Signed-off-by: Eric Dumazet edumazet@google.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Suraj Jitindar Singh surajjs@amazon.com Cc: stable@vger.kernel.org # 5.4.x Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/net/dst_ops.h | 4 +++- net/core/dst.c | 8 ++++---- net/ipv6/route.c | 3 +++ 3 files changed, 10 insertions(+), 5 deletions(-)

--- a/include/net/dst_ops.h +++ b/include/net/dst_ops.h @@ -53,9 +53,11 @@ static inline int dst_entries_get_slow(s return percpu_counter_sum_positive(&dst->pcpuc_entries); }

+#define DST_PERCPU_COUNTER_BATCH 32 static inline void dst_entries_add(struct dst_ops *dst, int val) { - percpu_counter_add(&dst->pcpuc_entries, val); + percpu_counter_add_batch(&dst->pcpuc_entries, val, + DST_PERCPU_COUNTER_BATCH); }

static inline int dst_entries_init(struct dst_ops *dst) --- a/net/core/dst.c +++ b/net/core/dst.c @@ -81,11 +81,11 @@ void *dst_alloc(struct dst_ops *ops, str { struct dst_entry *dst;

- if (ops->gc && dst_entries_get_fast(ops) > ops->gc_thresh) { + if (ops->gc && + !(flags & DST_NOCOUNT) && + dst_entries_get_fast(ops) > ops->gc_thresh) { if (ops->gc(ops)) { - printk_ratelimited(KERN_NOTICE "Route cache is full: " - "consider increasing sysctl " - "net.ipv[4|6].route.max_size.\n"); + pr_notice_ratelimited("Route cache is full: consider increasing sysctl net.ipv6.route.max_size.\n"); return NULL; } } --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -3218,6 +3218,9 @@ static int ip6_dst_gc(struct dst_ops *op int entries;

entries = dst_entries_get_fast(ops); + if (entries > rt_max_size) + entries = dst_entries_get_slow(ops); + if (time_after(rt_last_gc + rt_min_interval, jiffies) && entries <= rt_max_size) goto out;

5.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Jon Maxwell jmaxwell37@gmail.com

commit af6d10345ca76670c1b7c37799f0d5576ccef277 upstream.

In ip6_dst_gc() replace:

if (entries > gc_thresh)

With:

if (entries > ops->gc_thresh)

Sending Ipv6 packets in a loop via a raw socket triggers an issue where a route is cloned by ip6_rt_cache_alloc() for each packet sent. This quickly consumes the Ipv6 max_size threshold which defaults to 4096 resulting in these warnings:

[1] 99.187805] dst_alloc: 7728 callbacks suppressed [2] Route cache is full: consider increasing sysctl net.ipv6.route.max_size. . . [300] Route cache is full: consider increasing sysctl net.ipv6.route.max_size.

When this happens the packet is dropped and sendto() gets a network is unreachable error:

remaining pkt 200557 errno 101 remaining pkt 196462 errno 101 . . remaining pkt 126821 errno 101

Implement David Aherns suggestion to remove max_size check seeing that Ipv6 has a GC to manage memory usage. Ipv4 already does not check max_size.

Here are some memory comparisons for Ipv4 vs Ipv6 with the patch:

Test by running 5 instances of a program that sends UDP packets to a raw socket 5000000 times. Compare Ipv4 and Ipv6 performance with a similar program.

Ipv4:

Before test:

MemFree: 29427108 kB Slab: 237612 kB

ip6_dst_cache 1912 2528 256 32 2 : tunables 0 0 0 xfrm_dst_cache 0 0 320 25 2 : tunables 0 0 0 ip_dst_cache 2881 3990 192 42 2 : tunables 0 0 0

During test:

MemFree: 29417608 kB Slab: 247712 kB

ip6_dst_cache 1912 2528 256 32 2 : tunables 0 0 0 xfrm_dst_cache 0 0 320 25 2 : tunables 0 0 0 ip_dst_cache 44394 44394 192 42 2 : tunables 0 0 0

After test:

MemFree: 29422308 kB Slab: 238104 kB

ip6_dst_cache 1912 2528 256 32 2 : tunables 0 0 0 xfrm_dst_cache 0 0 320 25 2 : tunables 0 0 0 ip_dst_cache 3048 4116 192 42 2 : tunables 0 0 0

Ipv6 with patch:

Errno 101 errors are not observed anymore with the patch.

Before test:

MemFree: 29422308 kB Slab: 238104 kB

ip6_dst_cache 1912 2528 256 32 2 : tunables 0 0 0 xfrm_dst_cache 0 0 320 25 2 : tunables 0 0 0 ip_dst_cache 3048 4116 192 42 2 : tunables 0 0 0

During Test:

MemFree: 29431516 kB Slab: 240940 kB

ip6_dst_cache 11980 12064 256 32 2 : tunables 0 0 0 xfrm_dst_cache 0 0 320 25 2 : tunables 0 0 0 ip_dst_cache 3048 4116 192 42 2 : tunables 0 0 0

After Test:

MemFree: 29441816 kB Slab: 238132 kB

ip6_dst_cache 1902 2432 256 32 2 : tunables 0 0 0 xfrm_dst_cache 0 0 320 25 2 : tunables 0 0 0 ip_dst_cache 3048 4116 192 42 2 : tunables 0 0 0

Tested-by: Andrea Mayer andrea.mayer@uniroma2.it Signed-off-by: Jon Maxwell jmaxwell37@gmail.com Reviewed-by: David Ahern dsahern@kernel.org Link: https://lore.kernel.org/r/20230112012532.311021-1-jmaxwell37@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Suraj Jitindar Singh surajjs@amazon.com Cc: stable@vger.kernel.org # 5.4.x Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/net/dst_ops.h | 2 +- net/core/dst.c | 8 ++------ net/ipv6/route.c | 13 +++++-------- 3 files changed, 8 insertions(+), 15 deletions(-)

--- a/include/net/dst_ops.h +++ b/include/net/dst_ops.h @@ -16,7 +16,7 @@ struct dst_ops { unsigned short family; unsigned int gc_thresh;

- int (*gc)(struct dst_ops *ops); + void (*gc)(struct dst_ops *ops); struct dst_entry * (*check)(struct dst_entry *, __u32 cookie); unsigned int (*default_advmss)(const struct dst_entry *); unsigned int (*mtu)(const struct dst_entry *); --- a/net/core/dst.c +++ b/net/core/dst.c @@ -83,12 +83,8 @@ void *dst_alloc(struct dst_ops *ops, str

if (ops->gc && !(flags & DST_NOCOUNT) && - dst_entries_get_fast(ops) > ops->gc_thresh) { - if (ops->gc(ops)) { - pr_notice_ratelimited("Route cache is full: consider increasing sysctl net.ipv6.route.max_size.\n"); - return NULL; - } - } + dst_entries_get_fast(ops) > ops->gc_thresh) + ops->gc(ops);

dst = kmem_cache_alloc(ops->kmem_cachep, GFP_ATOMIC); if (!dst) --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -88,7 +88,7 @@ static struct dst_entry *ip6_negative_ad static void ip6_dst_destroy(struct dst_entry *); static void ip6_dst_ifdown(struct dst_entry *, struct net_device *dev, int how); -static int ip6_dst_gc(struct dst_ops *ops); +static void ip6_dst_gc(struct dst_ops *ops);

static int ip6_pkt_discard(struct sk_buff *skb); static int ip6_pkt_discard_out(struct net *net, struct sock *sk, struct sk_buff *skb); @@ -3207,11 +3207,10 @@ out: return dst; }

-static int ip6_dst_gc(struct dst_ops *ops) +static void ip6_dst_gc(struct dst_ops *ops) { struct net *net = container_of(ops, struct net, ipv6.ip6_dst_ops); int rt_min_interval = net->ipv6.sysctl.ip6_rt_gc_min_interval; - int rt_max_size = net->ipv6.sysctl.ip6_rt_max_size; int rt_elasticity = net->ipv6.sysctl.ip6_rt_gc_elasticity; int rt_gc_timeout = net->ipv6.sysctl.ip6_rt_gc_timeout; unsigned long rt_last_gc = net->ipv6.ip6_rt_last_gc; @@ -3219,11 +3218,10 @@ static int ip6_dst_gc(struct dst_ops *op int entries;

entries = dst_entries_get_fast(ops); - if (entries > rt_max_size) + if (entries > ops->gc_thresh) entries = dst_entries_get_slow(ops);

- if (time_after(rt_last_gc + rt_min_interval, jiffies) && - entries <= rt_max_size) + if (time_after(rt_last_gc + rt_min_interval, jiffies)) goto out;

fib6_run_gc(atomic_inc_return(&net->ipv6.ip6_rt_gc_expire), net, true); @@ -3233,7 +3231,6 @@ static int ip6_dst_gc(struct dst_ops *op out: val = atomic_read(&net->ipv6.ip6_rt_gc_expire); atomic_set(&net->ipv6.ip6_rt_gc_expire, val - (val >> rt_elasticity)); - return entries > rt_max_size; }

static int ip6_nh_lookup_table(struct net *net, struct fib6_config *cfg, @@ -6321,7 +6318,7 @@ static int __net_init ip6_route_net_init #endif

net->ipv6.sysctl.flush_delay = 0; - net->ipv6.sysctl.ip6_rt_max_size = 4096; + net->ipv6.sysctl.ip6_rt_max_size = INT_MAX; net->ipv6.sysctl.ip6_rt_gc_min_interval = HZ / 2; net->ipv6.sysctl.ip6_rt_gc_timeout = 60*HZ; net->ipv6.sysctl.ip6_rt_gc_interval = 30*HZ;