From: Alexandru Ardelean alexandru.ardelean@analog.com

[ Upstream commit 0fe2f2b789190661df24bb8bf62294145729a1fe ]

The iio_triggered_buffer_{predisable,postenable} functions attach/detach the poll functions.

For the predisable hook, the disable code should occur before detaching the poll func, and for the postenable hook, the poll func should be attached before the enable code.

The driver was slightly reworked. The preenable hook was moved to the postenable, to add some symmetry to the postenable/predisable part.

Signed-off-by: Alexandru Ardelean alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/light/tcs3414.c | 30 ++++++++++++++++++++---------- 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/drivers/iio/light/tcs3414.c b/drivers/iio/light/tcs3414.c index f90f8c5919fee..c444d083d03bf 100644 --- a/drivers/iio/light/tcs3414.c +++ b/drivers/iio/light/tcs3414.c @@ -245,32 +245,42 @@ static const struct iio_info tcs3414_info = { .driver_module = THIS_MODULE, };

-static int tcs3414_buffer_preenable(struct iio_dev *indio_dev) +static int tcs3414_buffer_postenable(struct iio_dev *indio_dev) { struct tcs3414_data *data = iio_priv(indio_dev); + int ret; + + ret = iio_triggered_buffer_postenable(indio_dev); + if (ret) + return ret;

data->control |= TCS3414_CONTROL_ADC_EN; - return i2c_smbus_write_byte_data(data->client, TCS3414_CONTROL, + ret = i2c_smbus_write_byte_data(data->client, TCS3414_CONTROL, data->control); + if (ret) + iio_triggered_buffer_predisable(indio_dev); + + return ret; }

static int tcs3414_buffer_predisable(struct iio_dev *indio_dev) { struct tcs3414_data *data = iio_priv(indio_dev); - int ret; - - ret = iio_triggered_buffer_predisable(indio_dev); - if (ret < 0) - return ret; + int ret, ret2;

data->control &= ~TCS3414_CONTROL_ADC_EN; - return i2c_smbus_write_byte_data(data->client, TCS3414_CONTROL, + ret = i2c_smbus_write_byte_data(data->client, TCS3414_CONTROL, data->control); + + ret2 = iio_triggered_buffer_predisable(indio_dev); + if (!ret) + ret = ret2; + + return ret; }

static const struct iio_buffer_setup_ops tcs3414_buffer_setup_ops = { - .preenable = tcs3414_buffer_preenable, - .postenable = &iio_triggered_buffer_postenable, + .postenable = tcs3414_buffer_postenable, .predisable = tcs3414_buffer_predisable, };

From: Connor Kuehl connor.kuehl@canonical.com

[ Upstream commit 228241944a48113470d3c3b46c88ba7fbe0a274b ]

Inside a nested 'else' block at the beginning of this function is a call that assigns 'psta' to the return value of 'rtw_get_stainfo()'. If 'rtw_get_stainfo()' returns NULL and the flow of control reaches the 'else if' where 'psta' is dereferenced, then we will dereference a NULL pointer.

Fix this by checking if 'psta' is not NULL before reading its 'psta->qos_option' data member.

Addresses-Coverity: ("Dereference null return value")

Signed-off-by: Connor Kuehl connor.kuehl@canonical.com Acked-by: Larry Finger Larry.Finger@lwfinger.net Link: https://lore.kernel.org/r/20190926150317.5894-1-connor.kuehl@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/staging/rtl8188eu/core/rtw_xmit.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_xmit.c b/drivers/staging/rtl8188eu/core/rtw_xmit.c index cabb810369bdf..c6bf8933648d3 100644 --- a/drivers/staging/rtl8188eu/core/rtw_xmit.c +++ b/drivers/staging/rtl8188eu/core/rtw_xmit.c @@ -822,7 +822,7 @@ s32 rtw_make_wlanhdr(struct adapter *padapter, u8 *hdr, struct pkt_attrib *pattr memcpy(pwlanhdr->addr2, get_bssid(pmlmepriv), ETH_ALEN); memcpy(pwlanhdr->addr3, pattrib->src, ETH_ALEN);

- if (psta->qos_option) + if (psta && psta->qos_option) qos_option = true; } else if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) { @@ -830,7 +830,7 @@ s32 rtw_make_wlanhdr(struct adapter *padapter, u8 *hdr, struct pkt_attrib *pattr memcpy(pwlanhdr->addr2, pattrib->src, ETH_ALEN); memcpy(pwlanhdr->addr3, get_bssid(pmlmepriv), ETH_ALEN);

- if (psta->qos_option) + if (psta && psta->qos_option) qos_option = true; } else { RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("fw_state:%x is not allowed to xmit frame\n", get_fwstate(pmlmepriv)));

From: Max Gurtovoy maxg@mellanox.com

[ Upstream commit 7718cf03c3ce4b6ebd90107643ccd01c952a1fce ]

In case we don't set the sg_prot_tablesize, the scsi layer assign the default size (65535 entries). We should limit this size since we should take into consideration the underlaying device capability. This cap is considered when calculating the sg_tablesize. Otherwise, for example, we can get that /sys/block/sdb/queue/max_segments is 128 and /sys/block/sdb/queue/max_integrity_segments is 65535.

Link: https://lore.kernel.org/r/1569359027-10987-1-git-send-email-maxg@mellanox.co... Signed-off-by: Max Gurtovoy maxg@mellanox.com Reviewed-by: Sagi Grimberg sagi@grimberg.me Signed-off-by: Jason Gunthorpe jgg@mellanox.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/ulp/iser/iscsi_iser.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 9080161e01af1..edb064f9f0f14 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -646,6 +646,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, if (ib_conn->pi_support) { u32 sig_caps = ib_conn->device->dev_attr.sig_prot_cap;

+ shost->sg_prot_tablesize = shost->sg_tablesize; scsi_host_set_prot(shost, iser_dif_prot_caps(sig_caps)); scsi_host_set_guard(shost, SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);

From: Benoit Parrot bparrot@ti.com

[ Upstream commit 85c4043f1d403c222d481dfc91846227d66663fb ]

In ov2659_s_stream() return value for invoked function should be checked and propagated.

Signed-off-by: Benoit Parrot bparrot@ti.com Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Mauro Carvalho Chehab mchehab+samsung@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/i2c/ov2659.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/media/i2c/ov2659.c b/drivers/media/i2c/ov2659.c index fadec1d705829..4f43e8c43950e 100644 --- a/drivers/media/i2c/ov2659.c +++ b/drivers/media/i2c/ov2659.c @@ -1204,11 +1204,15 @@ static int ov2659_s_stream(struct v4l2_subdev *sd, int on) goto unlock; }

- ov2659_set_pixel_clock(ov2659); - ov2659_set_frame_size(ov2659); - ov2659_set_format(ov2659); - ov2659_set_streaming(ov2659, 1); - ov2659->streaming = on; + ret = ov2659_set_pixel_clock(ov2659); + if (!ret) + ret = ov2659_set_frame_size(ov2659); + if (!ret) + ret = ov2659_set_format(ov2659); + if (!ret) { + ov2659_set_streaming(ov2659, 1); + ov2659->streaming = on; + }

unlock: mutex_unlock(&ov2659->lock);

From: Janusz Krzysztofik jmkrzyszt@gmail.com

[ Upstream commit 3143b459de4cdcce67b36827476c966e93c1cf01 ]

The driver stores frame format settings supposed to be in line with hardware state in a device private structure. Since the driver initial submission, those settings are updated before they are actually applied on hardware. If an error occurs on device update, the stored settings my not reflect hardware state anymore and consecutive calls to .get_fmt() may return incorrect information. That in turn may affect ability of a bridge device to use correct DMA transfer settings if such incorrect informmation on active frame format returned by .get_fmt() is used.

Assuming a failed device update means its state hasn't changed, update frame format related settings stored in the device private structure only after they are successfully applied so the stored values always reflect hardware state as closely as possible.

Fixes: 2f6e2404799a ("[media] SoC Camera: add driver for OV6650 sensor") Signed-off-by: Janusz Krzysztofik jmkrzyszt@gmail.com Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Mauro Carvalho Chehab mchehab+samsung@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/i2c/soc_camera/ov6650.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/media/i2c/soc_camera/ov6650.c b/drivers/media/i2c/soc_camera/ov6650.c index 4e19f5e5d8cf7..bb55ddfbf7337 100644 --- a/drivers/media/i2c/soc_camera/ov6650.c +++ b/drivers/media/i2c/soc_camera/ov6650.c @@ -611,7 +611,6 @@ static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) dev_err(&client->dev, "Pixel format not handled: 0x%x\n", code); return -EINVAL; } - priv->code = code;

if (code == MEDIA_BUS_FMT_Y8_1X8 || code == MEDIA_BUS_FMT_SBGGR8_1X8) { @@ -637,7 +636,6 @@ static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) dev_dbg(&client->dev, "max resolution: CIF\n"); coma_mask |= COMA_QCIF; } - priv->half_scale = half_scale;

if (sense) { if (sense->master_clock == 8000000) { @@ -677,8 +675,13 @@ static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) ret = ov6650_reg_rmw(client, REG_COMA, coma_set, coma_mask); if (!ret) ret = ov6650_reg_write(client, REG_CLKRC, clkrc); - if (!ret) + if (!ret) { + priv->half_scale = half_scale; + ret = ov6650_reg_rmw(client, REG_COML, coml_set, coml_mask); + } + if (!ret) + priv->code = code;

if (!ret) { mf->colorspace = priv->colorspace;

From: Veeraiyan Chidambaram veeraiyan.chidambaram@in.bosch.com

[ Upstream commit 39abcc84846bbc0538f13c190b6a9c7e36890cd2 ]

When R-Car Gen3 USB 2.0 is in Gadget mode, if host is detached an interrupt will be generated and Suspended state bit is set in interrupt status register. Interrupt handler will call driver->suspend(composite_suspend) if suspended state bit is set. composite_suspend will call ffs_func_suspend which will post FUNCTIONFS_SUSPEND and will be consumed by user space application via /dev/ep0.

To be able to detect host detach, extend the DVSQ_MASK to cover the Suspended bit of the DVSQ[2:0] bitfield from the Interrupt Status Register 0 (INTSTS0) register and perform appropriate action in the DVST interrupt handler (usbhsg_irq_dev_state).

Without this commit, disconnection of the phone from R-Car-H3 ES2.0 Salvator-X CN9 port is not recognized and reverse role switch does not happen. If phone is connected again it does not enumerate.

With this commit, disconnection will be recognized and reverse role switch will happen by a user space application. If phone is connected again it will enumerate properly and will become visible in the output of 'lsusb'.

Signed-off-by: Veeraiyan Chidambaram veeraiyan.chidambaram@in.bosch.com Signed-off-by: Eugeniu Rosca erosca@de.adit-jv.com Reviewed-by: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com Tested-by: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com Link: https://lore.kernel.org/r/1568207756-22325-3-git-send-email-external.veeraiy... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/renesas_usbhs/common.h | 3 ++- drivers/usb/renesas_usbhs/mod_gadget.c | 12 +++++++++--- 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h index b8620aa6b72e6..8424c165f732a 100644 --- a/drivers/usb/renesas_usbhs/common.h +++ b/drivers/usb/renesas_usbhs/common.h @@ -163,11 +163,12 @@ struct usbhs_priv; #define VBSTS (1 << 7) /* VBUS_0 and VBUSIN_0 Input Status */ #define VALID (1 << 3) /* USB Request Receive */

-#define DVSQ_MASK (0x3 << 4) /* Device State */ +#define DVSQ_MASK (0x7 << 4) /* Device State */ #define POWER_STATE (0 << 4) #define DEFAULT_STATE (1 << 4) #define ADDRESS_STATE (2 << 4) #define CONFIGURATION_STATE (3 << 4) +#define SUSPENDED_STATE (4 << 4)

#define CTSQ_MASK (0x7) /* Control Transfer Stage */ #define IDLE_SETUP_STAGE 0 /* Idle stage or setup stage */ diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index efe8d815cf2c7..5731621984c6c 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -467,12 +467,18 @@ static int usbhsg_irq_dev_state(struct usbhs_priv *priv, { struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv); struct device *dev = usbhsg_gpriv_to_dev(gpriv); + int state = usbhs_status_get_device_state(irq_state);

gpriv->gadget.speed = usbhs_bus_get_speed(priv);

- dev_dbg(dev, "state = %x : speed : %d\n", - usbhs_status_get_device_state(irq_state), - gpriv->gadget.speed); + dev_dbg(dev, "state = %x : speed : %d\n", state, gpriv->gadget.speed); + + if (gpriv->gadget.speed != USB_SPEED_UNKNOWN && + (state & SUSPENDED_STATE)) { + if (gpriv->driver && gpriv->driver->suspend) + gpriv->driver->suspend(&gpriv->gadget); + usb_gadget_set_state(&gpriv->gadget, USB_STATE_SUSPENDED); + }

return 0; }

From: Yizhuo yzhai003@ucr.edu

[ Upstream commit 472b39c3d1bba0616eb0e9a8fa3ad0f56927c7d7 ]

Inside function max8907_regulator_probe(), variable val could be uninitialized if regmap_read() fails. However, val is used later in the if statement to decide the content written to "pmic", which is potentially unsafe.

Signed-off-by: Yizhuo yzhai003@ucr.edu Link: https://lore.kernel.org/r/20191003175813.16415-1-yzhai003@ucr.edu Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/regulator/max8907-regulator.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/max8907-regulator.c b/drivers/regulator/max8907-regulator.c index 5e941db5ccafb..c7e70cfb581fe 100644 --- a/drivers/regulator/max8907-regulator.c +++ b/drivers/regulator/max8907-regulator.c @@ -299,7 +299,10 @@ static int max8907_regulator_probe(struct platform_device *pdev) memcpy(pmic->desc, max8907_regulators, sizeof(pmic->desc));

/* Backwards compatibility with MAX8907B; SD1 uses different voltages */ - regmap_read(max8907->regmap_gen, MAX8907_REG_II2RR, &val); + ret = regmap_read(max8907->regmap_gen, MAX8907_REG_II2RR, &val); + if (ret) + return ret; + if ((val & MAX8907_II2RR_VERSION_MASK) == MAX8907_II2RR_VERSION_REV_B) { pmic->desc[MAX8907_SD1].min_uV = 637500; @@ -336,14 +339,20 @@ static int max8907_regulator_probe(struct platform_device *pdev) }

if (pmic->desc[i].ops == &max8907_ldo_ops) { - regmap_read(config.regmap, pmic->desc[i].enable_reg, + ret = regmap_read(config.regmap, pmic->desc[i].enable_reg, &val); + if (ret) + return ret; + if ((val & MAX8907_MASK_LDO_SEQ) != MAX8907_MASK_LDO_SEQ) pmic->desc[i].ops = &max8907_ldo_hwctl_ops; } else if (pmic->desc[i].ops == &max8907_out5v_ops) { - regmap_read(config.regmap, pmic->desc[i].enable_reg, + ret = regmap_read(config.regmap, pmic->desc[i].enable_reg, &val); + if (ret) + return ret; + if ((val & (MAX8907_MASK_OUT5V_VINEN | MAX8907_MASK_OUT5V_ENSRC)) != MAX8907_MASK_OUT5V_ENSRC)

From: "Daniel T. Lee" danieltimlee@gmail.com

[ Upstream commit 3cad8f911575191fb3b81d8ed0e061e30f922223 ]

Currently, proc_cmd is used to dispatch command to 'pg_ctrl', 'pg_thread', 'pg_set'. proc_cmd is designed to check command result with grep the "Result:", but this might fail since this string is only shown in 'pg_thread' and 'pg_set'.

This commit fixes this logic by grep-ing the "Result:" string only when the command is not for 'pg_ctrl'.

For clarity of an execution flow, 'errexit' flag has been set.

To cleanup pktgen on exit, trap has been added for EXIT signal.

Signed-off-by: Daniel T. Lee danieltimlee@gmail.com Acked-by: Jesper Dangaard Brouer brouer@redhat.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- samples/pktgen/functions.sh | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/samples/pktgen/functions.sh b/samples/pktgen/functions.sh index 205e4cde46012..065a7e296ee31 100644 --- a/samples/pktgen/functions.sh +++ b/samples/pktgen/functions.sh @@ -5,6 +5,8 @@ # Author: Jesper Dangaaard Brouer # License: GPL

+set -o errexit + ## -- General shell logging cmds -- function err() { local exitcode=$1 @@ -58,6 +60,7 @@ function pg_set() { function proc_cmd() { local result local proc_file=$1 + local status=0 # after shift, the remaining args are contained in $@ shift local proc_ctrl=${PROC_DIR}/$proc_file @@ -73,13 +76,13 @@ function proc_cmd() { echo "cmd: $@ > $proc_ctrl" fi # Quoting of "$@" is important for space expansion - echo "$@" > "$proc_ctrl" - local status=$? + echo "$@" > "$proc_ctrl" || status=$?

- result=$(grep "Result: OK:" $proc_ctrl) - # Due to pgctrl, cannot use exit code $? from grep - if [[ "$result" == "" ]]; then - grep "Result:" $proc_ctrl >&2 + if [[ "$proc_file" != "pgctrl" ]]; then + result=$(grep "Result: OK:" $proc_ctrl) || true + if [[ "$result" == "" ]]; then + grep "Result:" $proc_ctrl >&2 + fi fi if (( $status != 0 )); then err 5 "Write error($status) occurred cmd: "$@ > $proc_ctrl"" @@ -105,6 +108,8 @@ function pgset() { fi }

+[[ $EUID -eq 0 ]] && trap 'pg_ctrl "reset"' EXIT + ## -- General shell tricks --

function root_check_run_with_sudo() {

From: Navid Emamdoost navid.emamdoost@gmail.com

[ Upstream commit d10dcb615c8e29d403a24d35f8310a7a53e3050c ]

In mwifiex_pcie_init_evt_ring, a new skb is allocated which should be released if mwifiex_map_pci_memory() fails. The release for skb and card->evtbd_ring_vbase is added.

Fixes: 0732484b47b5 ("mwifiex: separate ring initialization and ring creation routines") Signed-off-by: Navid Emamdoost navid.emamdoost@gmail.com Acked-by: Ganapathi Bhat gbhat@marvell.com Signed-off-by: Kalle Valo kvalo@codeaurora.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mwifiex/pcie.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c index 268e50ba88a51..4c0a656928996 100644 --- a/drivers/net/wireless/mwifiex/pcie.c +++ b/drivers/net/wireless/mwifiex/pcie.c @@ -577,8 +577,11 @@ static int mwifiex_pcie_init_evt_ring(struct mwifiex_adapter *adapter) skb_put(skb, MAX_EVENT_SIZE);

if (mwifiex_map_pci_memory(adapter, skb, MAX_EVENT_SIZE, - PCI_DMA_FROMDEVICE)) + PCI_DMA_FROMDEVICE)) { + kfree_skb(skb); + kfree(card->evtbd_ring_vbase); return -1; + }

buf_pa = MWIFIEX_SKB_DMA_ADDR(skb);

From: Benoit Parrot bparrot@ti.com

[ Upstream commit 2444846c0dbfa4ead21b621e4300ec32c90fbf38 ]

v4l2-compliance fails with this message:

fail: v4l2-test-buffers.cpp(294): \ (int)g_sequence() < seq.last_seq + 1 fail: v4l2-test-buffers.cpp(740): \ buf.check(m2m_q, last_m2m_seq) fail: v4l2-test-buffers.cpp(974): \ captureBufs(node, q, m2m_q, frame_count, true) test MMAP: FAIL

The driver is failing to update the source frame sequence number in the vb2 buffer object. Only the destination frame sequence was being updated.

This is only a reporting issue if the user space app actually cares about the frame sequence number. But it is fixed nonetheless.

Signed-off-by: Benoit Parrot bparrot@ti.com Reviewed-by: Tomi Valkeinen tomi.valkeinen@ti.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab+samsung@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/ti-vpe/vpe.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c index ca6629ccf82da..aa2870e864f9c 100644 --- a/drivers/media/platform/ti-vpe/vpe.c +++ b/drivers/media/platform/ti-vpe/vpe.c @@ -1299,6 +1299,7 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data) d_vb->timecode = s_vb->timecode;

d_vb->sequence = ctx->sequence; + s_vb->sequence = ctx->sequence;

d_q_data = &ctx->q_data[Q_DATA_DST]; if (d_q_data->flags & Q_DATA_INTERLACED) {

From: Stephan Gerhold stephan@gerhold.net

[ Upstream commit 6942635032cfd3e003e980d2dfa4e6323a3ce145 ]

On some devices (e.g. Samsung Galaxy A5 (2015)), the bootloader seems to keep interrupts enabled for SM5502 when booting Linux. Changing the cable state (i.e. plugging in a cable) - until the driver is loaded - will therefore produce an interrupt that is never read.

In this situation, the cable state will be stuck forever on the initial state because SM5502 stops sending interrupts. This can be avoided by clearing those pending interrupts after the driver has been loaded.

One way to do this is to reset all registers to default state by writing to SM5502_REG_RESET. This ensures that we start from a clean state, with all interrupts disabled.

Suggested-by: Chanwoo Choi cw00.choi@samsung.com Signed-off-by: Stephan Gerhold stephan@gerhold.net Signed-off-by: Chanwoo Choi cw00.choi@samsung.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/extcon/extcon-sm5502.c | 4 ++++ drivers/extcon/extcon-sm5502.h | 2 ++ 2 files changed, 6 insertions(+)

diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c index 7aac3cc7efd79..f63f9961ac122 100644 --- a/drivers/extcon/extcon-sm5502.c +++ b/drivers/extcon/extcon-sm5502.c @@ -69,6 +69,10 @@ struct sm5502_muic_info { /* Default value of SM5502 register to bring up MUIC device. */ static struct reg_data sm5502_reg_data[] = { { + .reg = SM5502_REG_RESET, + .val = SM5502_REG_RESET_MASK, + .invert = true, + }, { .reg = SM5502_REG_CONTROL, .val = SM5502_REG_CONTROL_MASK_INT_MASK, .invert = false, diff --git a/drivers/extcon/extcon-sm5502.h b/drivers/extcon/extcon-sm5502.h index 974b53222f568..12f8b01e57538 100644 --- a/drivers/extcon/extcon-sm5502.h +++ b/drivers/extcon/extcon-sm5502.h @@ -241,6 +241,8 @@ enum sm5502_reg { #define DM_DP_SWITCH_UART ((DM_DP_CON_SWITCH_UART <<SM5502_REG_MANUAL_SW1_DP_SHIFT) \ | (DM_DP_CON_SWITCH_UART <<SM5502_REG_MANUAL_SW1_DM_SHIFT))

+#define SM5502_REG_RESET_MASK (0x1) + /* SM5502 Interrupts */ enum sm5502_irq { /* INT1 */

From: Jin Yao yao.jin@linux.intel.com

[ Upstream commit 800d3f561659b5436f8c57e7c26dd1f6928b5615 ]

We received a user report that call-graph DWARF mode was enabled in 'perf record' but 'perf report' didn't unwind the callstack correctly. The reason was, libunwind was not compiled in.

We can use 'perf -vv' to check the compiled libraries but it would be valuable to report a warning to user directly (especially valuable for a perf newbie).

The warning is:

Warning: Please install libunwind development packages during the perf build.

Both TUI and stdio are supported.

Signed-off-by: Jin Yao yao.jin@linux.intel.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Andi Kleen ak@linux.intel.com Cc: Jiri Olsa jolsa@kernel.org Cc: Kan Liang kan.liang@linux.intel.com Cc: Peter Zijlstra peterz@infradead.org Link: http://lore.kernel.org/lkml/20191011022122.26369-1-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/builtin-report.c | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index f256fac1e7225..0f7ebac1846b5 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -285,6 +285,13 @@ static int report__setup_sample_type(struct report *rep) PERF_SAMPLE_BRANCH_ANY)) rep->nonany_branch_mode = true;

+#ifndef HAVE_LIBUNWIND_SUPPORT + if (dwarf_callchain_users) { + ui__warning("Please install libunwind development packages " + "during the perf build.\n"); + } +#endif + return 0; }

From: Alexandru Ardelean alexandru.ardelean@analog.com

[ Upstream commit c991bf9b650f39481cf3c1137092d4754a2c75de ]

This change replaces indio_dev's mlock with the driver's own lock. The lock is mostly needed to protect state when changing the `dac_cache` info. The lock has been extended to `ad7303_read_raw()`, to make sure that the cache is updated if an SPI-write is already in progress.

Signed-off-by: Alexandru Ardelean alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/dac/ad7303.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c index 4b0f942b89145..2e5e753ab7066 100644 --- a/drivers/iio/dac/ad7303.c +++ b/drivers/iio/dac/ad7303.c @@ -42,6 +42,7 @@ struct ad7303_state { struct regulator *vdd_reg; struct regulator *vref_reg;

+ struct mutex lock; /* * DMA (thus cache coherency maintenance) requires the * transfer buffers to live in their own cache lines. @@ -80,7 +81,7 @@ static ssize_t ad7303_write_dac_powerdown(struct iio_dev *indio_dev, if (ret) return ret;

- mutex_lock(&indio_dev->mlock); + mutex_lock(&st->lock);

if (pwr_down) st->config |= AD7303_CFG_POWER_DOWN(chan->channel); @@ -91,7 +92,7 @@ static ssize_t ad7303_write_dac_powerdown(struct iio_dev *indio_dev, * mode, so just write one of the DAC channels again */ ad7303_write(st, chan->channel, st->dac_cache[chan->channel]);

- mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->lock); return len; }

@@ -117,7 +118,9 @@ static int ad7303_read_raw(struct iio_dev *indio_dev,

switch (info) { case IIO_CHAN_INFO_RAW: + mutex_lock(&st->lock); *val = st->dac_cache[chan->channel]; + mutex_unlock(&st->lock); return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: vref_uv = ad7303_get_vref(st, chan); @@ -145,11 +148,11 @@ static int ad7303_write_raw(struct iio_dev *indio_dev, if (val >= (1 << chan->scan_type.realbits) || val < 0) return -EINVAL;

- mutex_lock(&indio_dev->mlock); + mutex_lock(&st->lock); ret = ad7303_write(st, chan->address, val); if (ret == 0) st->dac_cache[chan->channel] = val; - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->lock); break; default: ret = -EINVAL; @@ -213,6 +216,8 @@ static int ad7303_probe(struct spi_device *spi)

st->spi = spi;

+ mutex_init(&st->lock); + st->vdd_reg = devm_regulator_get(&spi->dev, "Vdd"); if (IS_ERR(st->vdd_reg)) return PTR_ERR(st->vdd_reg);

From: Kangjie Lu kjlu@umn.edu

[ Upstream commit ec3b7b6eb8c90b52f61adff11b6db7a8db34de19 ]

"clock" may be copied to "best_clock". Initializing best_clock is not sufficient. The fix initializes clock as well to avoid memory disclosures and informaiton leaks.

Signed-off-by: Kangjie Lu kjlu@umn.edu Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch Link: https://patchwork.freedesktop.org/patch/msgid/20191018044150.1899-1-kjlu@umn... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/gma500/oaktrail_crtc.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/gma500/oaktrail_crtc.c b/drivers/gpu/drm/gma500/oaktrail_crtc.c index 1048f0c7c6ce7..31e0899035f98 100644 --- a/drivers/gpu/drm/gma500/oaktrail_crtc.c +++ b/drivers/gpu/drm/gma500/oaktrail_crtc.c @@ -139,6 +139,7 @@ static bool mrst_sdvo_find_best_pll(const struct gma_limit_t *limit, s32 freq_error, min_error = 100000;

memset(best_clock, 0, sizeof(*best_clock)); + memset(&clock, 0, sizeof(clock));

for (clock.m = limit->m.min; clock.m <= limit->m.max; clock.m++) { for (clock.n = limit->n.min; clock.n <= limit->n.max; @@ -195,6 +196,7 @@ static bool mrst_lvds_find_best_pll(const struct gma_limit_t *limit, int err = target;

memset(best_clock, 0, sizeof(*best_clock)); + memset(&clock, 0, sizeof(clock));

for (clock.m = limit->m.min; clock.m <= limit->m.max; clock.m++) { for (clock.p1 = limit->p1.min; clock.p1 <= limit->p1.max;

From: Yunfeng Ye yeyunfeng@huawei.com

[ Upstream commit bfcef4ab1d7ee8921bc322109b1692036cc6cbe0 ]

In cases like suspend-to-disk and suspend-to-ram, a large number of CPU cores need to be shut down. At present, the CPU hotplug operation is serialised, and the CPU cores can only be shut down one by one. In this process, if PSCI affinity_info() does not return LEVEL_OFF quickly, cpu_psci_cpu_kill() needs to wait for 10ms. If hundreds of CPU cores need to be shut down, it will take a long time.

Normally, there is no need to wait 10ms in cpu_psci_cpu_kill(). So change the wait interval from 10 ms to max 1 ms and use usleep_range() instead of msleep() for more accurate timer.

In addition, reducing the time interval will increase the messages output, so remove the "Retry ..." message, instead, track time and output to the the sucessful message.

Signed-off-by: Yunfeng Ye yeyunfeng@huawei.com Reviewed-by: Sudeep Holla sudeep.holla@arm.com Signed-off-by: Catalin Marinas catalin.marinas@arm.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/kernel/psci.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c index f67f35b6edb12..e6ad81556575c 100644 --- a/arch/arm64/kernel/psci.c +++ b/arch/arm64/kernel/psci.c @@ -151,7 +151,8 @@ static void cpu_psci_cpu_die(unsigned int cpu)

static int cpu_psci_cpu_kill(unsigned int cpu) { - int err, i; + int err; + unsigned long start, end;

if (!psci_ops.affinity_info) return 0; @@ -161,16 +162,18 @@ static int cpu_psci_cpu_kill(unsigned int cpu) * while it is dying. So, try again a few times. */

- for (i = 0; i < 10; i++) { + start = jiffies; + end = start + msecs_to_jiffies(100); + do { err = psci_ops.affinity_info(cpu_logical_map(cpu), 0); if (err == PSCI_0_2_AFFINITY_LEVEL_OFF) { - pr_info("CPU%d killed.\n", cpu); + pr_info("CPU%d killed (polled %d ms)\n", cpu, + jiffies_to_msecs(jiffies - start)); return 0; }

- msleep(10); - pr_info("Retrying again to check for CPU kill\n"); - } + usleep_range(100, 1000); + } while (time_before(jiffies, end));

pr_warn("CPU%d may not have shut down cleanly (AFFINITY_INFO reports %d)\n", cpu, err);

From: John Garry john.garry@huawei.com

[ Upstream commit 130f4caf145c3562108b245a576db30b916199d2 ]

With CONFIG_DEBUG_TEST_DRIVER_REMOVE set, we may find the following WARN:

[ 23.452574] ------------[ cut here ]------------ [ 23.457190] WARNING: CPU: 59 PID: 1 at drivers/ata/libata-core.c:6676 ata_host_detach+0x15c/0x168 [ 23.466047] Modules linked in: [ 23.469092] CPU: 59 PID: 1 Comm: swapper/0 Not tainted 5.4.0-rc1-00010-g5b83fd27752b-dirty #296 [ 23.477776] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI RC0 - V1.16.01 03/15/2019 [ 23.486286] pstate: a0c00009 (NzCv daif +PAN +UAO) [ 23.491065] pc : ata_host_detach+0x15c/0x168 [ 23.495322] lr : ata_host_detach+0x88/0x168 [ 23.499491] sp : ffff800011cabb50 [ 23.502792] x29: ffff800011cabb50 x28: 0000000000000007 [ 23.508091] x27: ffff80001137f068 x26: ffff8000112c0c28 [ 23.513390] x25: 0000000000003848 x24: ffff0023ea185300 [ 23.518689] x23: 0000000000000001 x22: 00000000000014c0 [ 23.523987] x21: 0000000000013740 x20: ffff0023bdc20000 [ 23.529286] x19: 0000000000000000 x18: 0000000000000004 [ 23.534584] x17: 0000000000000001 x16: 00000000000000f0 [ 23.539883] x15: ffff0023eac13790 x14: ffff0023eb76c408 [ 23.545181] x13: 0000000000000000 x12: ffff0023eac13790 [ 23.550480] x11: ffff0023eb76c228 x10: 0000000000000000 [ 23.555779] x9 : ffff0023eac13798 x8 : 0000000040000000 [ 23.561077] x7 : 0000000000000002 x6 : 0000000000000001 [ 23.566376] x5 : 0000000000000002 x4 : 0000000000000000 [ 23.571674] x3 : ffff0023bf08a0bc x2 : 0000000000000000 [ 23.576972] x1 : 3099674201f72700 x0 : 0000000000400284 [ 23.582272] Call trace: [ 23.584706] ata_host_detach+0x15c/0x168 [ 23.588616] ata_pci_remove_one+0x10/0x18 [ 23.592615] ahci_remove_one+0x20/0x40 [ 23.596356] pci_device_remove+0x3c/0xe0 [ 23.600267] really_probe+0xdc/0x3e0 [ 23.603830] driver_probe_device+0x58/0x100 [ 23.608000] device_driver_attach+0x6c/0x90 [ 23.612169] __driver_attach+0x84/0xc8 [ 23.615908] bus_for_each_dev+0x74/0xc8 [ 23.619730] driver_attach+0x20/0x28 [ 23.623292] bus_add_driver+0x148/0x1f0 [ 23.627115] driver_register+0x60/0x110 [ 23.630938] __pci_register_driver+0x40/0x48 [ 23.635199] ahci_pci_driver_init+0x20/0x28 [ 23.639372] do_one_initcall+0x5c/0x1b0 [ 23.643199] kernel_init_freeable+0x1a4/0x24c [ 23.647546] kernel_init+0x10/0x108 [ 23.651023] ret_from_fork+0x10/0x18 [ 23.654590] ---[ end trace 634a14b675b71c13 ]---

With KASAN also enabled, we may also get many use-after-free reports.

The issue is that when CONFIG_DEBUG_TEST_DRIVER_REMOVE is set, we may attempt to detach the ata_port before it has been probed.

This is because the ata_ports are async probed, meaning that there is no guarantee that the ata_port has probed prior to detach. When the ata_port does probe in this scenario, we get all sorts of issues as the detach may have already happened.

Fix by ensuring synchronisation with async_synchronize_full(). We could alternatively use the cookie returned from the ata_port probe async_schedule() call, but that means managing the cookie, so more complicated.

Signed-off-by: John Garry john.garry@huawei.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/ata/libata-core.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index a352f09baef68..fc4bf8ff40ead 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6355,6 +6355,9 @@ void ata_host_detach(struct ata_host *host) { int i;

+ /* Ensure ata_port probe has completed */ + async_synchronize_full(); + for (i = 0; i < host->n_ports; i++) ata_port_detach(host->ports[i]);

From: Geert Uytterhoeven geert+renesas@glider.be

[ Upstream commit 884caadad128efad8e00c1cdc3177bc8912ee8ec ]

The definitions for bit field [19:18] of the Peripheral Function Select Register 3 were accidentally copied from bit field [20], leading to duplicates for the TCLK1_B function, and missing TCLK0, CAN_CLK_B, and ET0_ETXD4 functions.

Fix this by adding the missing GPIO_FN_CAN_CLK_B and GPIO_FN_ET0_ETXD4 enum values, and correcting the functions.

Reported-by: Ben Dooks ben.dooks@codethink.co.uk Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Link: https://lore.kernel.org/r/20191024131308.16659-1-geert+renesas@glider.be Signed-off-by: Sasha Levin sashal@kernel.org --- arch/sh/include/cpu-sh4/cpu/sh7734.h | 2 +- drivers/pinctrl/sh-pfc/pfc-sh7734.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/sh/include/cpu-sh4/cpu/sh7734.h b/arch/sh/include/cpu-sh4/cpu/sh7734.h index 2fb9a7b71b412..a2667c9b5819a 100644 --- a/arch/sh/include/cpu-sh4/cpu/sh7734.h +++ b/arch/sh/include/cpu-sh4/cpu/sh7734.h @@ -133,7 +133,7 @@ enum { GPIO_FN_EX_WAIT1, GPIO_FN_SD1_DAT0_A, GPIO_FN_DREQ2, GPIO_FN_CAN1_TX_C, GPIO_FN_ET0_LINK_C, GPIO_FN_ET0_ETXD5_A, GPIO_FN_EX_WAIT0, GPIO_FN_TCLK1_B, - GPIO_FN_RD_WR, GPIO_FN_TCLK0, + GPIO_FN_RD_WR, GPIO_FN_TCLK0, GPIO_FN_CAN_CLK_B, GPIO_FN_ET0_ETXD4, GPIO_FN_EX_CS5, GPIO_FN_SD1_CMD_A, GPIO_FN_ATADIR, GPIO_FN_QSSL_B, GPIO_FN_ET0_ETXD3_A, GPIO_FN_EX_CS4, GPIO_FN_SD1_WP_A, GPIO_FN_ATAWR, GPIO_FN_QMI_QIO1_B, diff --git a/drivers/pinctrl/sh-pfc/pfc-sh7734.c b/drivers/pinctrl/sh-pfc/pfc-sh7734.c index c691b2e343746..ab09d385f95d1 100644 --- a/drivers/pinctrl/sh-pfc/pfc-sh7734.c +++ b/drivers/pinctrl/sh-pfc/pfc-sh7734.c @@ -1458,7 +1458,7 @@ static const struct pinmux_func pinmux_func_gpios[] = { GPIO_FN(ET0_ETXD2_A), GPIO_FN(EX_CS5), GPIO_FN(SD1_CMD_A), GPIO_FN(ATADIR), GPIO_FN(QSSL_B), GPIO_FN(ET0_ETXD3_A), - GPIO_FN(RD_WR), GPIO_FN(TCLK1_B), + GPIO_FN(RD_WR), GPIO_FN(TCLK0), GPIO_FN(CAN_CLK_B), GPIO_FN(ET0_ETXD4), GPIO_FN(EX_WAIT0), GPIO_FN(TCLK1_B), GPIO_FN(EX_WAIT1), GPIO_FN(SD1_DAT0_A), GPIO_FN(DREQ2), GPIO_FN(CAN1_TX_C), GPIO_FN(ET0_LINK_C), GPIO_FN(ET0_ETXD5_A), @@ -1954,7 +1954,7 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = { /* IP3_20 [1] */ FN_EX_WAIT0, FN_TCLK1_B, /* IP3_19_18 [2] */ - FN_RD_WR, FN_TCLK1_B, 0, 0, + FN_RD_WR, FN_TCLK0, FN_CAN_CLK_B, FN_ET0_ETXD4, /* IP3_17_15 [3] */ FN_EX_CS5, FN_SD1_CMD_A, FN_ATADIR, FN_QSSL_B, FN_ET0_ETXD3_A, 0, 0, 0,

From: Pan Bian bianpan2016@163.com

[ Upstream commit e9a8ba9769a0e354341bc6cc01b98aadcea1dfe9 ]

The channels spfi->tx_ch and spfi->rx_ch are not set to NULL after they are released. As a result, they will be released again, either on the error handling branch in the same function or in the corresponding remove function, i.e. img_spfi_remove(). This patch fixes the bug by setting the two members to NULL.

Signed-off-by: Pan Bian bianpan2016@163.com Link: https://lore.kernel.org/r/1573007769-20131-1-git-send-email-bianpan2016@163.... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-img-spfi.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c index 823cbc92d1e75..c46c0738c7340 100644 --- a/drivers/spi/spi-img-spfi.c +++ b/drivers/spi/spi-img-spfi.c @@ -673,6 +673,8 @@ static int img_spfi_probe(struct platform_device *pdev) dma_release_channel(spfi->tx_ch); if (spfi->rx_ch) dma_release_channel(spfi->rx_ch); + spfi->tx_ch = NULL; + spfi->rx_ch = NULL; dev_warn(spfi->dev, "Failed to get DMA channels, falling back to PIO mode\n"); } else { master->dma_tx = spfi->tx_ch;

From: Masami Hiramatsu mhiramat@kernel.org

[ Upstream commit b77afa1f810f37bd8a36cb1318178dfe2d7af6b6 ]

Fix die_is_func_instance() to find range-only function instance.

In some case, a function instance can be made without any low PC or entry PC, but only with address ranges by optimization. (e.g. cold text partially in "text.unlikely" section) To find such function instance, we have to check the range attribute too.

Fixes: e1ecbbc3fa83 ("perf probe: Fix to handle optimized not-inlined functions") Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Cc: Jiri Olsa jolsa@redhat.com Cc: Namhyung Kim namhyung@kernel.org Link: http://lore.kernel.org/lkml/157190835669.1859.8368628035930950596.stgit@devn... Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/dwarf-aux.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c index a509aa8433a1c..af78d6fc8d12c 100644 --- a/tools/perf/util/dwarf-aux.c +++ b/tools/perf/util/dwarf-aux.c @@ -304,10 +304,14 @@ bool die_is_func_def(Dwarf_Die *dw_die) bool die_is_func_instance(Dwarf_Die *dw_die) { Dwarf_Addr tmp; + Dwarf_Attribute attr_mem;

/* Actually gcc optimizes non-inline as like as inlined */ - return !dwarf_func_inline(dw_die) && dwarf_entrypc(dw_die, &tmp) == 0; + return !dwarf_func_inline(dw_die) && + (dwarf_entrypc(dw_die, &tmp) == 0 || + dwarf_attr(dw_die, DW_AT_ranges, &attr_mem) != NULL); } + /** * die_get_data_member_location - Get the data-member offset * @mb_die: a DIE of a member of a data structure

From: Masami Hiramatsu mhiramat@kernel.org

[ Upstream commit acb6a7047ac2146b723fef69ee1ab6b7143546bf ]

Since some inlined functions are in lexical blocks of given function, we have to recursively walk through the DIE tree. Without this fix, perf-probe -L can miss the inlined functions which is in a lexical block (like if (..) { func() } case.)

However, even though, to walk the lines in a given function, we don't need to follow the children DIE of inlined functions because those do not have any lines in the specified function.

We need to walk though whole trees only if we walk all lines in a given file, because an inlined function can include another inlined function in the same file.

Fixes: b0e9cb2802d4 ("perf probe: Fix to search nested inlined functions in CU") Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Cc: Jiri Olsa jolsa@redhat.com Cc: Namhyung Kim namhyung@kernel.org Link: http://lore.kernel.org/lkml/157190836514.1859.15996864849678136353.stgit@dev... Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/dwarf-aux.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c index af78d6fc8d12c..ef6fa620a4264 100644 --- a/tools/perf/util/dwarf-aux.c +++ b/tools/perf/util/dwarf-aux.c @@ -664,10 +664,9 @@ static int __die_walk_funclines_cb(Dwarf_Die *in_die, void *data) if (lw->retval != 0) return DIE_FIND_CB_END; } + if (!lw->recursive) + return DIE_FIND_CB_SIBLING; } - if (!lw->recursive) - /* Don't need to search recursively */ - return DIE_FIND_CB_SIBLING;

if (addr) { fname = dwarf_decl_file(in_die); @@ -714,6 +713,10 @@ static int __die_walk_culines_cb(Dwarf_Die *sp_die, void *data) { struct __line_walk_param *lw = data;

+ /* + * Since inlined function can include another inlined function in + * the same file, we need to walk in it recursively. + */ lw->retval = __die_walk_funclines(sp_die, true, lw->callback, lw->data); if (lw->retval != 0) return DWARF_CB_ABORT; @@ -803,8 +806,9 @@ int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data) */ if (rt_die != cu_die) /* - * Don't need walk functions recursively, because nested - * inlined functions don't have lines of the specified DIE. + * Don't need walk inlined functions recursively, because + * inner inlined functions don't have the lines of the + * specified function. */ ret = __die_walk_funclines(rt_die, false, callback, data); else {

From: Masami Hiramatsu mhiramat@kernel.org

[ Upstream commit af04dd2f8ebaa8fbd46f698714acbf43da14da45 ]

Fix to show ranges of variables (--range and --vars option) in functions which DIE has only ranges but no entry_pc attribute.

Without this fix:

# perf probe --range -V clear_tasks_mm_cpumask Available variables at clear_tasks_mm_cpumask @<clear_tasks_mm_cpumask+0> (No matched variables)

With this fix:

# perf probe --range -V clear_tasks_mm_cpumask Available variables at clear_tasks_mm_cpumask @<clear_tasks_mm_cpumask+0> [VAL] int cpu @<clear_tasks_mm_cpumask+[0-35,317-317,2052-2059]>

Committer testing:

Before:

[root@quaco ~]# perf probe --range -V clear_tasks_mm_cpumask Available variables at clear_tasks_mm_cpumask @<clear_tasks_mm_cpumask+0> (No matched variables) [root@quaco ~]#

After:

[root@quaco ~]# perf probe --range -V clear_tasks_mm_cpumask Available variables at clear_tasks_mm_cpumask @<clear_tasks_mm_cpumask+0> [VAL] int cpu @<clear_tasks_mm_cpumask+[0-23,23-105,105-106,106-106,1843-1850,1850-1862]> [root@quaco ~]#

Using it:

[root@quaco ~]# perf probe clear_tasks_mm_cpumask cpu Added new event: probe:clear_tasks_mm_cpumask (on clear_tasks_mm_cpumask with cpu)

You can now use it in all perf tools, such as:

perf record -e probe:clear_tasks_mm_cpumask -aR sleep 1

[root@quaco ~]# perf probe -l probe:clear_tasks_mm_cpumask (on clear_tasks_mm_cpumask@kernel/cpu.c with cpu) [root@quaco ~]# [root@quaco ~]# perf trace -e probe:*cpumask ^C[root@quaco ~]#

Fixes: 349e8d261131 ("perf probe: Add --range option to show a variable's location range") Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Tested-by: Arnaldo Carvalho de Melo acme@redhat.com Cc: Jiri Olsa jolsa@redhat.com Cc: Namhyung Kim namhyung@kernel.org Link: http://lore.kernel.org/lkml/157199323018.8075.8179744380479673672.stgit@devn... Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/dwarf-aux.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c index ef6fa620a4264..ed7777ed4d384 100644 --- a/tools/perf/util/dwarf-aux.c +++ b/tools/perf/util/dwarf-aux.c @@ -989,7 +989,7 @@ static int die_get_var_innermost_scope(Dwarf_Die *sp_die, Dwarf_Die *vr_die, bool first = true; const char *name;

- ret = dwarf_entrypc(sp_die, &entry); + ret = die_entrypc(sp_die, &entry); if (ret) return ret;

@@ -1050,7 +1050,7 @@ int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf) bool first = true; const char *name;

- ret = dwarf_entrypc(sp_die, &entry); + ret = die_entrypc(sp_die, &entry); if (ret) return ret;

From: Masami Hiramatsu mhiramat@kernel.org

[ Upstream commit dee36a2abb67c175265d49b9a8c7dfa564463d9a ]

Since debuginfo__find_probes() callback function can be called with the location which already passed, the callback function must filter out such overlapped locations.

add_probe_trace_event() has already done it by commit 1a375ae7659a ("perf probe: Skip same probe address for a given line"), but add_available_vars() doesn't. Thus perf probe -v shows same address repeatedly as below:

# perf probe -V vfs_read:18 Available variables at vfs_read:18 @<vfs_read+217> char* buf loff_t* pos ssize_t ret struct file* file @<vfs_read+217> char* buf loff_t* pos ssize_t ret struct file* file @<vfs_read+226> char* buf loff_t* pos ssize_t ret struct file* file

With this fix, perf probe -V shows it correctly:

# perf probe -V vfs_read:18 Available variables at vfs_read:18 @<vfs_read+217> char* buf loff_t* pos ssize_t ret struct file* file @<vfs_read+226> char* buf loff_t* pos ssize_t ret struct file* file

Fixes: cf6eb489e5c0 ("perf probe: Show accessible local variables") Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Tested-by: Arnaldo Carvalho de Melo acme@redhat.com Cc: Jiri Olsa jolsa@redhat.com Cc: Namhyung Kim namhyung@kernel.org Link: http://lore.kernel.org/lkml/157241938927.32002.4026859017790562751.stgit@dev... Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/probe-finder.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 28a0f37b05c0e..d917f83e8e855 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -1331,6 +1331,18 @@ static int collect_variables_cb(Dwarf_Die *die_mem, void *data) return DIE_FIND_CB_SIBLING; }

+static bool available_var_finder_overlap(struct available_var_finder *af) +{ + int i; + + for (i = 0; i < af->nvls; i++) { + if (af->pf.addr == af->vls[i].point.address) + return true; + } + return false; + +} + /* Add a found vars into available variables list */ static int add_available_vars(Dwarf_Die *sc_die, struct probe_finder *pf) { @@ -1341,6 +1353,14 @@ static int add_available_vars(Dwarf_Die *sc_die, struct probe_finder *pf) Dwarf_Die die_mem; int ret;

+ /* + * For some reason (e.g. different column assigned to same address), + * this callback can be called with the address which already passed. + * Ignore it first. + */ + if (available_var_finder_overlap(af)) + return 0; + /* Check number of tevs */ if (af->nvls == af->max_vls) { pr_warning("Too many( > %d) probe point found.\n", af->max_vls);

From: Masami Hiramatsu mhiramat@kernel.org

[ Upstream commit 86c0bf8539e7f46d91bd105e55eda96e0064caef ]

Fix to show calling lines of inlined functions (where an inline function is called).

die_walk_lines() filtered out the lines inside inlined functions based on the address. However this also filtered out the lines which call those inlined functions from the target function.

To solve this issue, check the call_file and call_line attributes and do not filter out if it matches to the line information.

Without this fix, perf probe -L doesn't show some lines correctly. (don't see the lines after 17)

# perf probe -L vfs_read <vfs_read@/home/mhiramat/ksrc/linux/fs/read_write.c:0> 0 ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos) 1 { 2 ssize_t ret;

4 if (!(file->f_mode & FMODE_READ)) return -EBADF; 6 if (!(file->f_mode & FMODE_CAN_READ)) return -EINVAL; 8 if (unlikely(!access_ok(buf, count))) return -EFAULT;

11 ret = rw_verify_area(READ, file, pos, count); 12 if (!ret) { 13 if (count > MAX_RW_COUNT) count = MAX_RW_COUNT; 15 ret = __vfs_read(file, buf, count, pos); 16 if (ret > 0) { fsnotify_access(file); add_rchar(current, ret); }

With this fix:

# perf probe -L vfs_read <vfs_read@/home/mhiramat/ksrc/linux/fs/read_write.c:0> 0 ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos) 1 { 2 ssize_t ret;

4 if (!(file->f_mode & FMODE_READ)) return -EBADF; 6 if (!(file->f_mode & FMODE_CAN_READ)) return -EINVAL; 8 if (unlikely(!access_ok(buf, count))) return -EFAULT;

11 ret = rw_verify_area(READ, file, pos, count); 12 if (!ret) { 13 if (count > MAX_RW_COUNT) count = MAX_RW_COUNT; 15 ret = __vfs_read(file, buf, count, pos); 16 if (ret > 0) { 17 fsnotify_access(file); 18 add_rchar(current, ret); } 20 inc_syscr(current); }

Fixes: 4cc9cec636e7 ("perf probe: Introduce lines walker interface") Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Tested-by: Arnaldo Carvalho de Melo acme@redhat.com Cc: Jiri Olsa jolsa@redhat.com Cc: Namhyung Kim namhyung@kernel.org Link: http://lore.kernel.org/lkml/157241937995.32002.17899884017011512577.stgit@de... Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/dwarf-aux.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c index 5f32fed5eeb30..6851f1d0e2532 100644 --- a/tools/perf/util/dwarf-aux.c +++ b/tools/perf/util/dwarf-aux.c @@ -741,7 +741,7 @@ int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data) Dwarf_Lines *lines; Dwarf_Line *line; Dwarf_Addr addr; - const char *fname, *decf = NULL; + const char *fname, *decf = NULL, *inf = NULL; int lineno, ret = 0; int decl = 0, inl; Dwarf_Die die_mem, *cu_die; @@ -785,13 +785,21 @@ int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data) */ if (!dwarf_haspc(rt_die, addr)) continue; + if (die_find_inlinefunc(rt_die, addr, &die_mem)) { + /* Call-site check */ + inf = die_get_call_file(&die_mem); + if ((inf && !strcmp(inf, decf)) && + die_get_call_lineno(&die_mem) == lineno) + goto found; + dwarf_decl_line(&die_mem, &inl); if (inl != decl || decf != dwarf_decl_file(&die_mem)) continue; } } +found: /* Get source line */ fname = dwarf_linesrc(line, NULL, NULL);

From: Masami Hiramatsu mhiramat@kernel.org

[ Upstream commit da6cb952a89efe24bb76c4971370d485737a2d85 ]

Filter out instances except for inlined_subroutine and subprogram DIE in die_walk_instances() and die_is_func_instance().

This fixes an issue that perf probe sets some probes on calling address instead of a target function itself.

When perf probe walks on instances of an abstruct origin (a kind of function prototype of inlined function), die_walk_instances() can also pass a GNU_call_site (a GNU extension for call site) to callback. Since it is not an inlined instance of target function, we have to filter out when searching a probe point.

Without this patch, perf probe sets probes on call site address too.This can happen on some function which is marked "inlined", but has actual symbol. (I'm not sure why GCC mark it "inlined"):

# perf probe -D vfs_read p:probe/vfs_read _text+2500017 p:probe/vfs_read_1 _text+2499468 p:probe/vfs_read_2 _text+2499563 p:probe/vfs_read_3 _text+2498876 p:probe/vfs_read_4 _text+2498512 p:probe/vfs_read_5 _text+2498627

With this patch:

Slightly different results, similar tho:

# perf probe -D vfs_read p:probe/vfs_read _text+2498512

Committer testing:

# uname -a Linux quaco 5.3.8-200.fc30.x86_64 #1 SMP Tue Oct 29 14:46:22 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

Before:

# perf probe -D vfs_read p:probe/vfs_read _text+3131557 p:probe/vfs_read_1 _text+3130975 p:probe/vfs_read_2 _text+3131047 p:probe/vfs_read_3 _text+3130380 p:probe/vfs_read_4 _text+3130000 # uname -a Linux quaco 5.3.8-200.fc30.x86_64 #1 SMP Tue Oct 29 14:46:22 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux #

After:

# perf probe -D vfs_read p:probe/vfs_read _text+3130000 #

Fixes: db0d2c6420ee ("perf probe: Search concrete out-of-line instances") Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Tested-by: Arnaldo Carvalho de Melo acme@redhat.com Cc: Jiri Olsa jolsa@redhat.com Cc: Namhyung Kim namhyung@kernel.org Link: http://lore.kernel.org/lkml/157241937063.32002.11024544873990816590.stgit@de... Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/dwarf-aux.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c index 8d6eaaab47397..388c9dcba976c 100644 --- a/tools/perf/util/dwarf-aux.c +++ b/tools/perf/util/dwarf-aux.c @@ -298,18 +298,22 @@ bool die_is_func_def(Dwarf_Die *dw_die) * @dw_die: a DIE * * Ensure that this DIE is an instance (which has an entry address). - * This returns true if @dw_die is a function instance. If not, you need to - * call die_walk_instances() to find actual instances. + * This returns true if @dw_die is a function instance. If not, the @dw_die + * must be a prototype. You can use die_walk_instances() to find actual + * instances. **/ bool die_is_func_instance(Dwarf_Die *dw_die) { Dwarf_Addr tmp; Dwarf_Attribute attr_mem; + int tag = dwarf_tag(dw_die);

- /* Actually gcc optimizes non-inline as like as inlined */ - return !dwarf_func_inline(dw_die) && - (dwarf_entrypc(dw_die, &tmp) == 0 || - dwarf_attr(dw_die, DW_AT_ranges, &attr_mem) != NULL); + if (tag != DW_TAG_subprogram && + tag != DW_TAG_inlined_subroutine) + return false; + + return dwarf_entrypc(dw_die, &tmp) == 0 || + dwarf_attr(dw_die, DW_AT_ranges, &attr_mem) != NULL; }

/** @@ -588,6 +592,9 @@ static int __die_walk_instances_cb(Dwarf_Die *inst, void *data) Dwarf_Die *origin; int tmp;

+ if (!die_is_func_instance(inst)) + return DIE_FIND_CB_CONTINUE; + attr = dwarf_attr(inst, DW_AT_abstract_origin, &attr_mem); if (attr == NULL) return DIE_FIND_CB_CONTINUE;

From: Mike Isely isely@pobox.com

[ Upstream commit 7f404ae9cf2a285f73b3c18ab9303d54b7a3d8e1 ]

In some device configurations there's no radio or radio support in the driver. That's OK, as the driver sets itself up accordingly. However on tear-down in these caes it's still trying to tear down radio related context when there isn't anything there, leading to dereferences through a null pointer and chaos follows.

How this bug survived unfixed for 11 years in the pvrusb2 driver is a mystery to me.

[hverkuil: fix two checkpatch warnings]

Signed-off-by: Mike Isely isely@pobox.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/usb/pvrusb2/pvrusb2-v4l2.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c index 1c5f85bf7ed4b..2d6195e9a1953 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/usb/pvrusb2/pvrusb2-v4l2.c @@ -886,8 +886,12 @@ static void pvr2_v4l2_internal_check(struct pvr2_channel *chp) pvr2_v4l2_dev_disassociate_parent(vp->dev_video); pvr2_v4l2_dev_disassociate_parent(vp->dev_radio); if (!list_empty(&vp->dev_video->devbase.fh_list) || - !list_empty(&vp->dev_radio->devbase.fh_list)) + (vp->dev_radio && + !list_empty(&vp->dev_radio->devbase.fh_list))) { + pvr2_trace(PVR2_TRACE_STRUCT, + "pvr2_v4l2 internal_check exit-empty id=%p", vp); return; + } pvr2_v4l2_destroy_no_lock(vp); }

@@ -961,7 +965,8 @@ static int pvr2_v4l2_release(struct file *file) kfree(fhp); if (vp->channel.mc_head->disconnect_flag && list_empty(&vp->dev_video->devbase.fh_list) && - list_empty(&vp->dev_radio->devbase.fh_list)) { + (!vp->dev_radio || + list_empty(&vp->dev_radio->devbase.fh_list))) { pvr2_v4l2_destroy_no_lock(vp); } return 0;

From: Robert Richter rrichter@marvell.com

[ Upstream commit 7088e29e0423d3195e09079b4f849ec4837e5a75 ]

The current code to convert a physical address mask to a grain (defined as granularity in bytes) is:

e->grain = ~(mem_err->physical_addr_mask & ~PAGE_MASK);

This is broken in several ways:

1) It calculates to wrong grain values. E.g., a physical address mask of ~0xfff should give a grain of 0x1000. Without considering PAGE_MASK, there is an off-by-one. Things are worse when also filtering it with ~PAGE_MASK. This will calculate to a grain with the upper bits set. In the example it even calculates to ~0.

2) The grain does not depend on and is unrelated to the kernel's page-size. The page-size only matters when unmapping memory in memory_failure(). Smaller grains are wrongly rounded up to the page-size, on architectures with a configurable page-size (e.g. arm64) this could round up to the even bigger page-size of the hypervisor.

Fix this with:

e->grain = ~mem_err->physical_addr_mask + 1;

The grain_bits are defined as:

grain = 1 << grain_bits;

Change also the grain_bits calculation accordingly, it is the same formula as in edac_mc.c now and the code can be unified.

The value in ->physical_addr_mask coming from firmware is assumed to be contiguous, but this is not sanity-checked. However, in case the mask is non-contiguous, a conversion to grain_bits effectively converts the grain bit mask to a power of 2 by rounding it up.

Suggested-by: James Morse james.morse@arm.com Signed-off-by: Robert Richter rrichter@marvell.com Signed-off-by: Borislav Petkov bp@suse.de Reviewed-by: Mauro Carvalho Chehab mchehab+samsung@kernel.org Cc: "linux-edac@vger.kernel.org" linux-edac@vger.kernel.org Cc: Tony Luck tony.luck@intel.com Link: https://lkml.kernel.org/r/20191106093239.25517-11-rrichter@marvell.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/edac/ghes_edac.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c index e3fa4390f8460..4ddbf6604e2ab 100644 --- a/drivers/edac/ghes_edac.c +++ b/drivers/edac/ghes_edac.c @@ -189,6 +189,7 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev, /* Cleans the error report buffer */ memset(e, 0, sizeof (*e)); e->error_count = 1; + e->grain = 1; strcpy(e->label, "unknown label"); e->msg = pvt->msg; e->other_detail = pvt->other_detail; @@ -284,7 +285,7 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev,

/* Error grain */ if (mem_err->validation_bits & CPER_MEM_VALID_PA_MASK) - e->grain = ~(mem_err->physical_addr_mask & ~PAGE_MASK); + e->grain = ~mem_err->physical_addr_mask + 1;

/* Memory error location, mapped on e->location */ p = e->location; @@ -391,8 +392,13 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev, if (p > pvt->other_detail) *(p - 1) = '\0';

+ /* Sanity-check driver-supplied grain value. */ + if (WARN_ON_ONCE(!e->grain)) + e->grain = 1; + + grain_bits = fls_long(e->grain - 1); + /* Generate the trace event */ - grain_bits = fls_long(e->grain); snprintf(pvt->detail_location, sizeof(pvt->detail_location), "APEI location: %s %s", e->location, e->other_detail); trace_mc_event(type, e->msg, e->label, e->error_count,

From: Ben Zhang benzh@chromium.org

[ Upstream commit eabf424f7b60246c76dcb0ea6f1e83ef9abbeaa6 ]

The codec dies when RT5677_PWR_ANLG2(MX-64h) is set to 0xACE1 while it's streaming audio over SPI. The DSP firmware turns on PLL2 (MX-64 bit 8) when SPI streaming starts. However regmap does not believe that register can change by itself. When BST1 (bit 15) is turned on with regmap_update_bits(), it doesn't read the register first before write, so PLL2 power bit is cleared by accident.

Marking MX-64h as volatile in regmap solved the issue.

Signed-off-by: Ben Zhang benzh@chromium.org Signed-off-by: Curtis Malainey cujomalainey@chromium.org Link: https://lore.kernel.org/r/20191106011335.223061-6-cujomalainey@chromium.org Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/rt5677.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c index 69d987a9935c9..90f8173123f6c 100644 --- a/sound/soc/codecs/rt5677.c +++ b/sound/soc/codecs/rt5677.c @@ -295,6 +295,7 @@ static bool rt5677_volatile_register(struct device *dev, unsigned int reg) case RT5677_I2C_MASTER_CTRL7: case RT5677_I2C_MASTER_CTRL8: case RT5677_HAP_GENE_CTRL2: + case RT5677_PWR_ANLG2: /* Modified by DSP firmware */ case RT5677_PWR_DSP_ST: case RT5677_PRIV_DATA: case RT5677_PLL1_CTRL2:

From: Sudip Mukherjee sudipm.mukherjee@gmail.com

[ Upstream commit 231ec2f24dad18d021b361045bbd618ba62a274e ]

Usually all the distro will load the parport low level driver as part of their initialization. But we can get into a situation where all the parallel port drivers are built as module and we unload all the modules at a later time. Then if we just do "modprobe parport" it will only load the parport module and will not load the low level driver which will actually register the ports. So, check the bus if there is any parport registered, if not, load the low level driver.

We can get into the above situation with all distro but only Suse has setup the alias for "parport_lowlevel" and so it only works in Suse. Users of Debian based distro will need to load the lowlevel module manually.

Signed-off-by: Sudip Mukherjee sudipm.mukherjee@gmail.com Link: https://lore.kernel.org/r/20191016144540.18810-3-sudipm.mukherjee@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/parport/share.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)

diff --git a/drivers/parport/share.c b/drivers/parport/share.c index f26af0214ab3e..3be1f4a041d49 100644 --- a/drivers/parport/share.c +++ b/drivers/parport/share.c @@ -228,6 +228,18 @@ static int port_check(struct device *dev, void *dev_drv) return 0; }

+/* + * Iterates through all the devices connected to the bus and return 1 + * if the device is a parallel port. + */ + +static int port_detect(struct device *dev, void *dev_drv) +{ + if (is_parport(dev)) + return 1; + return 0; +} + /** * parport_register_driver - register a parallel port device driver * @drv: structure describing the driver @@ -280,6 +292,15 @@ int __parport_register_driver(struct parport_driver *drv, struct module *owner, if (ret) return ret;

+ /* + * check if bus has any parallel port registered, if + * none is found then load the lowlevel driver. + */ + ret = bus_for_each_dev(&parport_bus_type, NULL, NULL, + port_detect); + if (!ret) + get_lowlevel_driver(); + mutex_lock(&registration_lock); if (drv->match_port) bus_for_each_dev(&parport_bus_type, NULL, drv,

From: Lianbo Jiang lijiang@redhat.com

[ Upstream commit 112eee5d06007dae561f14458bde7f2a4879ef4e ]

Add a forward declaration of struct kimage to the crash.h header because future changes will invoke a crash-specific function from the realmode init path and the compiler will complain otherwise like this:

In file included from arch/x86/realmode/init.c:11: ./arch/x86/include/asm/crash.h:5:32: warning: ‘struct kimage’ declared inside\ parameter list will not be visible outside of this definition or declaration 5 | int crash_load_segments(struct kimage *image); | ^~~~~~ ./arch/x86/include/asm/crash.h:6:37: warning: ‘struct kimage’ declared inside\ parameter list will not be visible outside of this definition or declaration 6 | int crash_copy_backup_region(struct kimage *image); | ^~~~~~ ./arch/x86/include/asm/crash.h:7:39: warning: ‘struct kimage’ declared inside\ parameter list will not be visible outside of this definition or declaration 7 | int crash_setup_memmap_entries(struct kimage *image, |

[ bp: Rewrite the commit message. ]

Reported-by: kbuild test robot lkp@intel.com Signed-off-by: Lianbo Jiang lijiang@redhat.com Signed-off-by: Borislav Petkov bp@suse.de Cc: bhe@redhat.com Cc: d.hatayama@fujitsu.com Cc: dhowells@redhat.com Cc: dyoung@redhat.com Cc: ebiederm@xmission.com Cc: horms@verge.net.au Cc: "H. Peter Anvin" hpa@zytor.com Cc: Ingo Molnar mingo@redhat.com Cc: Jürgen Gross jgross@suse.com Cc: kexec@lists.infradead.org Cc: Thomas Gleixner tglx@linutronix.de Cc: Tom Lendacky thomas.lendacky@amd.com Cc: vgoyal@redhat.com Cc: x86-ml x86@kernel.org Link: https://lkml.kernel.org/r/20191108090027.11082-4-lijiang@redhat.com Link: https://lkml.kernel.org/r/201910310233.EJRtTMWP%25lkp@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/include/asm/crash.h | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/arch/x86/include/asm/crash.h b/arch/x86/include/asm/crash.h index f498411f2500b..1b15304dd0980 100644 --- a/arch/x86/include/asm/crash.h +++ b/arch/x86/include/asm/crash.h @@ -1,6 +1,8 @@ #ifndef _ASM_X86_CRASH_H #define _ASM_X86_CRASH_H

+struct kimage; + int crash_load_segments(struct kimage *image); int crash_copy_backup_region(struct kimage *image); int crash_setup_memmap_entries(struct kimage *image,

From: Chuhong Yuan hslester96@gmail.com

[ Upstream commit 04358e40ba96d687c0811c21d9dede73f5244a98 ]

The driver misses calling clk_unprepare in probe failure and remove. Add the calls to fix it.

Signed-off-by: Chuhong Yuan hslester96@gmail.com Link: https://lore.kernel.org/r/20191115083122.12278-1-hslester96@gmail.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-tegra20-slink.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c index af2880d0c1126..cf2a329fd8958 100644 --- a/drivers/spi/spi-tegra20-slink.c +++ b/drivers/spi/spi-tegra20-slink.c @@ -1078,7 +1078,7 @@ static int tegra_slink_probe(struct platform_device *pdev) ret = clk_enable(tspi->clk); if (ret < 0) { dev_err(&pdev->dev, "Clock enable failed %d\n", ret); - goto exit_free_master; + goto exit_clk_unprepare; }

spi_irq = platform_get_irq(pdev, 0); @@ -1151,6 +1151,8 @@ static int tegra_slink_probe(struct platform_device *pdev) free_irq(spi_irq, tspi); exit_clk_disable: clk_disable(tspi->clk); +exit_clk_unprepare: + clk_unprepare(tspi->clk); exit_free_master: spi_master_put(master); return ret; @@ -1164,6 +1166,7 @@ static int tegra_slink_remove(struct platform_device *pdev) free_irq(tspi->irq, tspi);

clk_disable(tspi->clk); + clk_unprepare(tspi->clk);

if (tspi->tx_dma_chan) tegra_slink_deinit_dma_param(tspi, false);

From: Johannes Berg johannes.berg@intel.com

[ Upstream commit 5974fbb5e10b018fdbe3c3b81cb4cc54e1105ab9 ]

kasprintf() can fail, we should check the return value.

Fixes: 5ed540aecc2a ("iwlwifi: use mac80211 throughput trigger") Fixes: 8ca151b568b6 ("iwlwifi: add the MVM driver") Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Luca Coelho luciano.coelho@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/iwlwifi/dvm/led.c | 3 +++ drivers/net/wireless/iwlwifi/mvm/led.c | 3 +++ 2 files changed, 6 insertions(+)

diff --git a/drivers/net/wireless/iwlwifi/dvm/led.c b/drivers/net/wireless/iwlwifi/dvm/led.c index ca4d6692cc4eb..47e5fa70483d1 100644 --- a/drivers/net/wireless/iwlwifi/dvm/led.c +++ b/drivers/net/wireless/iwlwifi/dvm/led.c @@ -184,6 +184,9 @@ void iwl_leds_init(struct iwl_priv *priv)

priv->led.name = kasprintf(GFP_KERNEL, "%s-led", wiphy_name(priv->hw->wiphy)); + if (!priv->led.name) + return; + priv->led.brightness_set = iwl_led_brightness_set; priv->led.blink_set = iwl_led_blink_set; priv->led.max_brightness = 1; diff --git a/drivers/net/wireless/iwlwifi/mvm/led.c b/drivers/net/wireless/iwlwifi/mvm/led.c index e3b3cf4dbd77a..948be43e4d266 100644 --- a/drivers/net/wireless/iwlwifi/mvm/led.c +++ b/drivers/net/wireless/iwlwifi/mvm/led.c @@ -109,6 +109,9 @@ int iwl_mvm_leds_init(struct iwl_mvm *mvm)

mvm->led.name = kasprintf(GFP_KERNEL, "%s-led", wiphy_name(mvm->hw->wiphy)); + if (!mvm->led.name) + return -ENOMEM; + mvm->led.brightness_set = iwl_led_brightness_set; mvm->led.max_brightness = 1;

From: Corentin Labbe clabbe.montjoie@gmail.com

[ Upstream commit a7126603d46fe8f01aeedf589e071c6aaa6c6c39 ]

If you try to compile this driver on a 64-bit platform then you will get warnings because it mixes size_t with unsigned int which only works on 32-bit.

This patch fixes all of the warnings on sun4i-ss-hash.c. Signed-off-by: Corentin Labbe clabbe.montjoie@gmail.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/crypto/sunxi-ss/sun4i-ss-hash.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/sunxi-ss/sun4i-ss-hash.c b/drivers/crypto/sunxi-ss/sun4i-ss-hash.c index ff80314988093..bff3cbd05c0a8 100644 --- a/drivers/crypto/sunxi-ss/sun4i-ss-hash.c +++ b/drivers/crypto/sunxi-ss/sun4i-ss-hash.c @@ -245,8 +245,8 @@ int sun4i_hash_update(struct ahash_request *areq) */ while (op->len < 64 && i < end) { /* how many bytes we can read from current SG */ - in_r = min3(mi.length - in_i, end - i, - 64 - op->len); + in_r = min(end - i, 64 - op->len); + in_r = min_t(size_t, mi.length - in_i, in_r); memcpy(op->buf + op->len, mi.addr + in_i, in_r); op->len += in_r; i += in_r; @@ -266,8 +266,8 @@ int sun4i_hash_update(struct ahash_request *areq) } if (mi.length - in_i > 3 && i < end) { /* how many bytes we can read from current SG */ - in_r = min3(mi.length - in_i, areq->nbytes - i, - ((mi.length - in_i) / 4) * 4); + in_r = min_t(size_t, mi.length - in_i, areq->nbytes - i); + in_r = min_t(size_t, ((mi.length - in_i) / 4) * 4, in_r); /* how many bytes we can write in the device*/ todo = min3((u32)(end - i) / 4, rx_cnt, (u32)in_r / 4); writesl(ss->base + SS_RXFIFO, mi.addr + in_i, todo); @@ -289,8 +289,8 @@ int sun4i_hash_update(struct ahash_request *areq) if ((areq->nbytes - i) < 64) { while (i < areq->nbytes && in_i < mi.length && op->len < 64) { /* how many bytes we can read from current SG */ - in_r = min3(mi.length - in_i, areq->nbytes - i, - 64 - op->len); + in_r = min(areq->nbytes - i, 64 - op->len); + in_r = min_t(size_t, mi.length - in_i, in_r); memcpy(op->buf + op->len, mi.addr + in_i, in_r); op->len += in_r; i += in_r;

From: Hewenliang hewenliang4@huawei.com

[ Upstream commit 10992af6bf46a2048ad964985a5b77464e5563b1 ]

It is necessary to free the memory that we have allocated when error occurs.

Fixes: ef3072cd1d5c ("tools lib traceevent: Get rid of die in add_filter_type()") Signed-off-by: Hewenliang hewenliang4@huawei.com Reviewed-by: Steven Rostedt (VMware) rostedt@goodmis.org Cc: Tzvetomir Stoyanov tstoyanov@vmware.com Link: http://lore.kernel.org/lkml/20191119014415.57210-1-hewenliang4@huawei.com Signed-off-by: Steven Rostedt (VMware) rostedt@goodmis.org Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/lib/traceevent/parse-filter.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c index 64309d73921b2..c2b72e6d002d1 100644 --- a/tools/lib/traceevent/parse-filter.c +++ b/tools/lib/traceevent/parse-filter.c @@ -1484,8 +1484,10 @@ static int copy_filter_type(struct event_filter *filter, if (strcmp(str, "TRUE") == 0 || strcmp(str, "FALSE") == 0) { /* Add trivial event */ arg = allocate_arg(); - if (arg == NULL) + if (arg == NULL) { + free(str); return -1; + }

arg->type = FILTER_ARG_BOOLEAN; if (strcmp(str, "TRUE") == 0) @@ -1494,8 +1496,11 @@ static int copy_filter_type(struct event_filter *filter, arg->boolean.value = 0;

filter_type = add_filter_type(filter, event->id); - if (filter_type == NULL) + if (filter_type == NULL) { + free(str); + free_arg(arg); return -1; + }

filter_type->filter = arg;

From: Adrian Hunter adrian.hunter@intel.com

[ Upstream commit 32a1ece4bdbde24734ab16484bad7316f03fc42d ]

Add an error message because Intel BTS does not support AUX area sampling.

Signed-off-by: Adrian Hunter adrian.hunter@intel.com Cc: Jiri Olsa jolsa@redhat.com Link: http://lore.kernel.org/lkml/20191115124225.5247-16-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/arch/x86/util/auxtrace.c | 2 ++ tools/perf/arch/x86/util/intel-bts.c | 5 +++++ 2 files changed, 7 insertions(+)

diff --git a/tools/perf/arch/x86/util/auxtrace.c b/tools/perf/arch/x86/util/auxtrace.c index 7a7805583e3fe..ab641cfc8c2bb 100644 --- a/tools/perf/arch/x86/util/auxtrace.c +++ b/tools/perf/arch/x86/util/auxtrace.c @@ -35,6 +35,8 @@ struct auxtrace_record *auxtrace_record__init_intel(struct perf_evlist *evlist,

intel_pt_pmu = perf_pmu__find(INTEL_PT_PMU_NAME); intel_bts_pmu = perf_pmu__find(INTEL_BTS_PMU_NAME); + if (intel_bts_pmu) + intel_bts_pmu->auxtrace = true;

if (evlist) { evlist__for_each(evlist, evsel) { diff --git a/tools/perf/arch/x86/util/intel-bts.c b/tools/perf/arch/x86/util/intel-bts.c index 9b94ce5209170..9d83a7f3496cb 100644 --- a/tools/perf/arch/x86/util/intel-bts.c +++ b/tools/perf/arch/x86/util/intel-bts.c @@ -119,6 +119,11 @@ static int intel_bts_recording_options(struct auxtrace_record *itr, const struct cpu_map *cpus = evlist->cpus; bool privileged = geteuid() == 0 || perf_event_paranoid() < 0;

+ if (opts->auxtrace_sample_mode) { + pr_err("Intel BTS does not support AUX area sampling\n"); + return -EINVAL; + } + btsr->evlist = evlist; btsr->snapshot_mode = opts->auxtrace_snapshot_mode;