March 2019 - Linux-stable-mirror

[PATCH] Avoid that a kernel warning appears during system resume

by Bart Van Assche

Since scsi_device_quiesce() skips SCSI devices that have another state than RUNNING, OFFLINE or TRANSPORT_OFFLINE, scsi_device_resume() should not complain about SCSI devices that have been skipped. Hence this patch. This patch avoids that the following warning appears during resume: WARNING: CPU: 3 PID: 1039 at blk_clear_pm_only+0x2a/0x30 CPU: 3 PID: 1039 Comm: kworker/u8:49 Not tainted 5.0.0+ #1 Hardware name: LENOVO 4180F42/4180F42, BIOS 83ET75WW (1.45 ) 05/10/2013 Workqueue: events_unbound async_run_entry_fn RIP: 0010:blk_clear_pm_only+0x2a/0x30 Call Trace: ? scsi_device_resume+0x28/0x50 ? scsi_dev_type_resume+0x2b/0x80 ? async_run_entry_fn+0x2c/0xd0 ? process_one_work+0x1f0/0x3f0 ? worker_thread+0x28/0x3c0 ? process_one_work+0x3f0/0x3f0 ? kthread+0x10c/0x130 ? __kthread_create_on_node+0x150/0x150 ? ret_from_fork+0x1f/0x30 Cc: Christoph Hellwig <hch(a)lst.de> Cc: Hannes Reinecke <hare(a)suse.com> Cc: Ming Lei <ming.lei(a)redhat.com> Cc: Johannes Thumshirn <jthumshirn(a)suse.de> Cc: Oleksandr Natalenko <oleksandr(a)natalenko.name> Cc: Martin Steigerwald <martin(a)lichtvoll.de> Cc: <stable(a)vger.kernel.org> Reported-by: Jisheng Zhang <Jisheng.Zhang(a)synaptics.com> Tested-by: Jisheng Zhang <Jisheng.Zhang(a)synaptics.com> Fixes: 3a0a529971ec ("block, scsi: Make SCSI quiesce and resume work reliably") # v4.15 Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> --- drivers/scsi/scsi_lib.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 324f830ee9fa..54ad751b42b8 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2541,8 +2541,10 @@ void scsi_device_resume(struct scsi_device *sdev) * device deleted during suspend) */ mutex_lock(&sdev->state_mutex); - sdev->quiesced_by = NULL; - blk_clear_pm_only(sdev->request_queue); + if (sdev->quiesced_by) { + sdev->quiesced_by = NULL; + blk_clear_pm_only(sdev->request_queue); + } if (sdev->sdev_state == SDEV_QUIESCE) scsi_device_set_state(sdev, SDEV_RUNNING); mutex_unlock(&sdev->state_mutex); -- 2.21.0.155.ge902e9bcae20

5 years, 9 months

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FAILED: patch "[PATCH] crypto: rockchip - update new iv to device in multiple" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From c1c214adcb56d36433480c8fedf772498e7e539c Mon Sep 17 00:00:00 2001 From: Zhang Zhijie <zhangzj(a)rock-chips.com> Date: Wed, 13 Feb 2019 16:24:39 +0800 Subject: [PATCH] crypto: rockchip - update new iv to device in multiple operations For chain mode in cipher(eg. AES-CBC/DES-CBC), the iv is continuously updated in the operation. The new iv value should be written to device register by software. Reported-by: Eric Biggers <ebiggers(a)google.com> Fixes: 433cd2c617bf ("crypto: rockchip - add crypto driver for rk3288") Cc: <stable(a)vger.kernel.org> # v4.5+ Signed-off-by: Zhang Zhijie <zhangzj(a)rock-chips.com> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h index 417c445d8dea..54ee5b3ed9db 100644 --- a/drivers/crypto/rockchip/rk3288_crypto.h +++ b/drivers/crypto/rockchip/rk3288_crypto.h @@ -245,6 +245,7 @@ struct rk_cipher_ctx { struct rk_crypto_info *dev; unsigned int keylen; u32 mode; + u8 iv[AES_BLOCK_SIZE]; }; enum alg_type { diff --git a/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c b/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c index fe2fc6c7b51b..02dac6ae7e53 100644 --- a/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c +++ b/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c @@ -242,6 +242,17 @@ static void crypto_dma_start(struct rk_crypto_info *dev) static int rk_set_data_start(struct rk_crypto_info *dev) { int err; + struct ablkcipher_request *req = + ablkcipher_request_cast(dev->async_req); + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); + u32 ivsize = crypto_ablkcipher_ivsize(tfm); + u8 *src_last_blk = page_address(sg_page(dev->sg_src)) + + dev->sg_src->offset + dev->sg_src->length - ivsize; + + /* store the iv that need to be updated in chain mode */ + if (ctx->mode & RK_CRYPTO_DEC) + memcpy(ctx->iv, src_last_blk, ivsize); err = dev->load_data(dev, dev->sg_src, dev->sg_dst); if (!err) @@ -286,6 +297,28 @@ static void rk_iv_copyback(struct rk_crypto_info *dev) memcpy_fromio(req->info, dev->reg + RK_CRYPTO_AES_IV_0, ivsize); } +static void rk_update_iv(struct rk_crypto_info *dev) +{ + struct ablkcipher_request *req = + ablkcipher_request_cast(dev->async_req); + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); + struct rk_cipher_ctx *ctx = crypto_ablkcipher_ctx(tfm); + u32 ivsize = crypto_ablkcipher_ivsize(tfm); + u8 *new_iv = NULL; + + if (ctx->mode & RK_CRYPTO_DEC) { + new_iv = ctx->iv; + } else { + new_iv = page_address(sg_page(dev->sg_dst)) + + dev->sg_dst->offset + dev->sg_dst->length - ivsize; + } + + if (ivsize == DES_BLOCK_SIZE) + memcpy_toio(dev->reg + RK_CRYPTO_TDES_IV_0, new_iv, ivsize); + else if (ivsize == AES_BLOCK_SIZE) + memcpy_toio(dev->reg + RK_CRYPTO_AES_IV_0, new_iv, ivsize); +} + /* return: * true some err was occurred * fault no err, continue @@ -307,6 +340,7 @@ static int rk_ablk_rx(struct rk_crypto_info *dev) } } if (dev->left_bytes) { + rk_update_iv(dev); if (dev->aligned) { if (sg_is_last(dev->sg_src)) { dev_err(dev->dev, "[%s:%d] Lack of data\n",

5 years, 9 months

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FAILED: patch "[PATCH] crypto: rockchip - fix scatterlist nents error" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 4359669a087633132203c52d67dd8c31e09e7b2e Mon Sep 17 00:00:00 2001 From: Zhang Zhijie <zhangzj(a)rock-chips.com> Date: Wed, 13 Feb 2019 16:24:38 +0800 Subject: [PATCH] crypto: rockchip - fix scatterlist nents error In some cases, the nents of src scatterlist is different from dst scatterlist. So two variables are used to handle the nents of src&dst scatterlist. Reported-by: Eric Biggers <ebiggers(a)google.com> Fixes: 433cd2c617bf ("crypto: rockchip - add crypto driver for rk3288") Cc: <stable(a)vger.kernel.org> # v4.5+ Signed-off-by: Zhang Zhijie <zhangzj(a)rock-chips.com> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c index c9d622abd90c..0ce4a65b95f5 100644 --- a/drivers/crypto/rockchip/rk3288_crypto.c +++ b/drivers/crypto/rockchip/rk3288_crypto.c @@ -119,7 +119,7 @@ static int rk_load_data(struct rk_crypto_info *dev, count = (dev->left_bytes > PAGE_SIZE) ? PAGE_SIZE : dev->left_bytes; - if (!sg_pcopy_to_buffer(dev->first, dev->nents, + if (!sg_pcopy_to_buffer(dev->first, dev->src_nents, dev->addr_vir, count, dev->total - dev->left_bytes)) { dev_err(dev->dev, "[%s:%d] pcopy err\n", diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h index d5fb4013fb42..417c445d8dea 100644 --- a/drivers/crypto/rockchip/rk3288_crypto.h +++ b/drivers/crypto/rockchip/rk3288_crypto.h @@ -207,7 +207,8 @@ struct rk_crypto_info { void *addr_vir; int aligned; int align_size; - size_t nents; + size_t src_nents; + size_t dst_nents; unsigned int total; unsigned int count; dma_addr_t addr_in; diff --git a/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c b/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c index 87dd571466c1..fe2fc6c7b51b 100644 --- a/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c +++ b/drivers/crypto/rockchip/rk3288_crypto_ablkcipher.c @@ -260,8 +260,9 @@ static int rk_ablk_start(struct rk_crypto_info *dev) dev->total = req->nbytes; dev->sg_src = req->src; dev->first = req->src; - dev->nents = sg_nents(req->src); + dev->src_nents = sg_nents(req->src); dev->sg_dst = req->dst; + dev->dst_nents = sg_nents(req->dst); dev->aligned = 1; spin_lock_irqsave(&dev->lock, flags); @@ -297,7 +298,7 @@ static int rk_ablk_rx(struct rk_crypto_info *dev) dev->unload_data(dev); if (!dev->aligned) { - if (!sg_pcopy_from_buffer(req->dst, dev->nents, + if (!sg_pcopy_from_buffer(req->dst, dev->dst_nents, dev->addr_vir, dev->count, dev->total - dev->left_bytes - dev->count)) { diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c index 821a506b9e17..c336ae75e361 100644 --- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c +++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c @@ -206,7 +206,7 @@ static int rk_ahash_start(struct rk_crypto_info *dev) dev->sg_dst = NULL; dev->sg_src = req->src; dev->first = req->src; - dev->nents = sg_nents(req->src); + dev->src_nents = sg_nents(req->src); rctx = ahash_request_ctx(req); rctx->mode = 0;

5 years, 9 months

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FAILED: patch "[PATCH] stm class: Prevent division by zero" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From bf7cbaae0831252b416f375ca9b1027ecd4642dd Mon Sep 17 00:00:00 2001 From: Alexander Shishkin <alexander.shishkin(a)linux.intel.com> Date: Thu, 21 Feb 2019 14:19:17 +0200 Subject: [PATCH] stm class: Prevent division by zero Using STP_POLICY_ID_SET ioctl command with dummy_stm device, or any STM device that supplies zero mmio channel size, will trigger a division by zero bug in the kernel. Prevent this by disallowing channel widths other than 1 for such devices. Signed-off-by: Alexander Shishkin <alexander.shishkin(a)linux.intel.com> Fixes: 7bd1d4093c2f ("stm class: Introduce an abstraction for System Trace Module devices") CC: stable(a)vger.kernel.org # v4.4+ diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index c80b064224f6..c7ba8acfd4d5 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -735,7 +735,7 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg) struct stm_device *stm = stmf->stm; struct stp_policy_id *id; char *ids[] = { NULL, NULL }; - int ret = -EINVAL; + int ret = -EINVAL, wlimit = 1; u32 size; if (stmf->output.nr_chans) @@ -763,8 +763,10 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg) if (id->__reserved_0 || id->__reserved_1) goto err_free; - if (id->width < 1 || - id->width > PAGE_SIZE / stm->data->sw_mmiosz) + if (stm->data->sw_mmiosz) + wlimit = PAGE_SIZE / stm->data->sw_mmiosz; + + if (id->width < 1 || id->width > wlimit) goto err_free; ids[0] = id->id;

5 years, 9 months

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FAILED: patch "[PATCH] stm class: Prevent division by zero" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From bf7cbaae0831252b416f375ca9b1027ecd4642dd Mon Sep 17 00:00:00 2001 From: Alexander Shishkin <alexander.shishkin(a)linux.intel.com> Date: Thu, 21 Feb 2019 14:19:17 +0200 Subject: [PATCH] stm class: Prevent division by zero Using STP_POLICY_ID_SET ioctl command with dummy_stm device, or any STM device that supplies zero mmio channel size, will trigger a division by zero bug in the kernel. Prevent this by disallowing channel widths other than 1 for such devices. Signed-off-by: Alexander Shishkin <alexander.shishkin(a)linux.intel.com> Fixes: 7bd1d4093c2f ("stm class: Introduce an abstraction for System Trace Module devices") CC: stable(a)vger.kernel.org # v4.4+ diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index c80b064224f6..c7ba8acfd4d5 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -735,7 +735,7 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg) struct stm_device *stm = stmf->stm; struct stp_policy_id *id; char *ids[] = { NULL, NULL }; - int ret = -EINVAL; + int ret = -EINVAL, wlimit = 1; u32 size; if (stmf->output.nr_chans) @@ -763,8 +763,10 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg) if (id->__reserved_0 || id->__reserved_1) goto err_free; - if (id->width < 1 || - id->width > PAGE_SIZE / stm->data->sw_mmiosz) + if (stm->data->sw_mmiosz) + wlimit = PAGE_SIZE / stm->data->sw_mmiosz; + + if (id->width < 1 || id->width > wlimit) goto err_free; ids[0] = id->id;

5 years, 9 months

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FAILED: patch "[PATCH] stm class: Prevent division by zero" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From bf7cbaae0831252b416f375ca9b1027ecd4642dd Mon Sep 17 00:00:00 2001 From: Alexander Shishkin <alexander.shishkin(a)linux.intel.com> Date: Thu, 21 Feb 2019 14:19:17 +0200 Subject: [PATCH] stm class: Prevent division by zero Using STP_POLICY_ID_SET ioctl command with dummy_stm device, or any STM device that supplies zero mmio channel size, will trigger a division by zero bug in the kernel. Prevent this by disallowing channel widths other than 1 for such devices. Signed-off-by: Alexander Shishkin <alexander.shishkin(a)linux.intel.com> Fixes: 7bd1d4093c2f ("stm class: Introduce an abstraction for System Trace Module devices") CC: stable(a)vger.kernel.org # v4.4+ diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index c80b064224f6..c7ba8acfd4d5 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -735,7 +735,7 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg) struct stm_device *stm = stmf->stm; struct stp_policy_id *id; char *ids[] = { NULL, NULL }; - int ret = -EINVAL; + int ret = -EINVAL, wlimit = 1; u32 size; if (stmf->output.nr_chans) @@ -763,8 +763,10 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg) if (id->__reserved_0 || id->__reserved_1) goto err_free; - if (id->width < 1 || - id->width > PAGE_SIZE / stm->data->sw_mmiosz) + if (stm->data->sw_mmiosz) + wlimit = PAGE_SIZE / stm->data->sw_mmiosz; + + if (id->width < 1 || id->width > wlimit) goto err_free; ids[0] = id->id;

5 years, 9 months

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FAILED: patch "[PATCH] stm class: Prevent division by zero" failed to apply to 4.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From bf7cbaae0831252b416f375ca9b1027ecd4642dd Mon Sep 17 00:00:00 2001 From: Alexander Shishkin <alexander.shishkin(a)linux.intel.com> Date: Thu, 21 Feb 2019 14:19:17 +0200 Subject: [PATCH] stm class: Prevent division by zero Using STP_POLICY_ID_SET ioctl command with dummy_stm device, or any STM device that supplies zero mmio channel size, will trigger a division by zero bug in the kernel. Prevent this by disallowing channel widths other than 1 for such devices. Signed-off-by: Alexander Shishkin <alexander.shishkin(a)linux.intel.com> Fixes: 7bd1d4093c2f ("stm class: Introduce an abstraction for System Trace Module devices") CC: stable(a)vger.kernel.org # v4.4+ diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c index c80b064224f6..c7ba8acfd4d5 100644 --- a/drivers/hwtracing/stm/core.c +++ b/drivers/hwtracing/stm/core.c @@ -735,7 +735,7 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg) struct stm_device *stm = stmf->stm; struct stp_policy_id *id; char *ids[] = { NULL, NULL }; - int ret = -EINVAL; + int ret = -EINVAL, wlimit = 1; u32 size; if (stmf->output.nr_chans) @@ -763,8 +763,10 @@ static int stm_char_policy_set_ioctl(struct stm_file *stmf, void __user *arg) if (id->__reserved_0 || id->__reserved_1) goto err_free; - if (id->width < 1 || - id->width > PAGE_SIZE / stm->data->sw_mmiosz) + if (stm->data->sw_mmiosz) + wlimit = PAGE_SIZE / stm->data->sw_mmiosz; + + if (id->width < 1 || id->width > wlimit) goto err_free; ids[0] = id->id;

5 years, 9 months

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stable-rc/linux-4.19.y boot: 97 boots: 0 failed, 84 passed with 12 offline, 1 untried/unknown (v4.19.30)

by kernelci.org bot

stable-rc/linux-4.19.y boot: 97 boots: 0 failed, 84 passed with 12 offline, 1 untried/unknown (v4.19.30) Full Boot Summary: https://kernelci.org/boot/all/job/stable-rc/branch/linux-4.19.y/kernel/v4.1… Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-4.19.y/kernel/v4.19.30/ Tree: stable-rc Branch: linux-4.19.y Git Describe: v4.19.30 Git Commit: 7794d352260604f02e7d446e632af2ca7fe8dda6 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Tested: 59 unique boards, 23 SoC families, 14 builds out of 206 Offline Platforms: arm: tegra_defconfig: gcc-7 tegra124-jetson-tk1: 1 offline lab bcm2835_defconfig: gcc-7 bcm2835-rpi-b: 1 offline lab sunxi_defconfig: gcc-7 sun5i-r8-chip: 1 offline lab multi_v7_defconfig: gcc-7 alpine-db: 1 offline lab at91-sama5d4_xplained: 1 offline lab socfpga_cyclone5_de0_sockit: 1 offline lab sun5i-r8-chip: 1 offline lab tegra124-jetson-tk1: 1 offline lab sama5_defconfig: gcc-7 at91-sama5d4_xplained: 1 offline lab arm64: defconfig: gcc-7 apq8016-sbc: 1 offline lab juno-r2: 1 offline lab mt7622-rfb1: 1 offline lab --- For more info write to <info(a)kernelci.org>

5 years, 9 months

1
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stable/linux-4.19.y boot: 32 boots: 0 failed, 32 passed (v4.19.30)

by kernelci.org bot

stable/linux-4.19.y boot: 32 boots: 0 failed, 32 passed (v4.19.30) Full Boot Summary: https://kernelci.org/boot/all/job/stable/branch/linux-4.19.y/kernel/v4.19.3… Full Build Summary: https://kernelci.org/build/stable/branch/linux-4.19.y/kernel/v4.19.30/ Tree: stable Branch: linux-4.19.y Git Describe: v4.19.30 Git Commit: 7794d352260604f02e7d446e632af2ca7fe8dda6 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git Tested: 20 unique boards, 12 SoC families, 8 builds out of 206 --- For more info write to <info(a)kernelci.org>

5 years, 9 months

1
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[git:media_tree/master] media: imx: Don't register IPU subdevs/links if CSI port missing

by Mauro Carvalho Chehab

This is an automatic generated email to let you know that the following patch were queued: Subject: media: imx: Don't register IPU subdevs/links if CSI port missing Author: Steve Longerbeam <slongerbeam(a)gmail.com> Date: Wed Feb 20 18:53:32 2019 -0500 The second IPU internal sub-devices were being registered and links to them created even when the second IPU is not present. This is wrong for i.MX6 S/DL and i.MX53 which have only a single IPU. Fixes: e130291212df5 ("[media] media: Add i.MX media core driver") Signed-off-by: Steve Longerbeam <slongerbeam(a)gmail.com> Reviewed-by: Philipp Zabel <p.zabel(a)pengutronix.de> Cc: stable(a)vger.kernel.org Signed-off-by: Hans Verkuil <hverkuil-cisco(a)xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung(a)kernel.org> drivers/staging/media/imx/imx-media-dev.c | 7 --- drivers/staging/media/imx/imx-media-internal-sd.c | 22 ++------- drivers/staging/media/imx/imx-media-of.c | 58 +++++++++++++++-------- drivers/staging/media/imx/imx-media.h | 3 +- drivers/staging/media/imx/imx7-media-csi.c | 2 +- 5 files changed, 46 insertions(+), 46 deletions(-) --- diff --git a/drivers/staging/media/imx/imx-media-dev.c b/drivers/staging/media/imx/imx-media-dev.c index fc35508d9396..10a63a4fa90b 100644 --- a/drivers/staging/media/imx/imx-media-dev.c +++ b/drivers/staging/media/imx/imx-media-dev.c @@ -477,13 +477,6 @@ static int imx_media_probe(struct platform_device *pdev) goto cleanup; } - ret = imx_media_add_ipu_internal_subdevs(imxmd); - if (ret) { - v4l2_err(&imxmd->v4l2_dev, - "add_ipu_internal_subdevs failed with %d\n", ret); - goto cleanup; - } - ret = imx_media_dev_notifier_register(imxmd); if (ret) goto del_int; diff --git a/drivers/staging/media/imx/imx-media-internal-sd.c b/drivers/staging/media/imx/imx-media-internal-sd.c index e620f4adb755..dc510dcfe160 100644 --- a/drivers/staging/media/imx/imx-media-internal-sd.c +++ b/drivers/staging/media/imx/imx-media-internal-sd.c @@ -298,13 +298,14 @@ static int add_internal_subdev(struct imx_media_dev *imxmd, } /* adds the internal subdevs in one ipu */ -static int add_ipu_internal_subdevs(struct imx_media_dev *imxmd, int ipu_id) +int imx_media_add_ipu_internal_subdevs(struct imx_media_dev *imxmd, + int ipu_id) { enum isd_enum i; + int ret; for (i = 0; i < num_isd; i++) { const struct internal_subdev *isd = &int_subdev[i]; - int ret; /* * the CSIs are represented in the device-tree, so those @@ -322,25 +323,10 @@ static int add_ipu_internal_subdevs(struct imx_media_dev *imxmd, int ipu_id) } if (ret) - return ret; + goto remove; } return 0; -} - -int imx_media_add_ipu_internal_subdevs(struct imx_media_dev *imxmd) -{ - int ret; - - ret = add_ipu_internal_subdevs(imxmd, 0); - if (ret) - goto remove; - - ret = add_ipu_internal_subdevs(imxmd, 1); - if (ret) - goto remove; - - return 0; remove: imx_media_remove_ipu_internal_subdevs(imxmd); diff --git a/drivers/staging/media/imx/imx-media-of.c b/drivers/staging/media/imx/imx-media-of.c index a26bdeb1af34..12383f4785ad 100644 --- a/drivers/staging/media/imx/imx-media-of.c +++ b/drivers/staging/media/imx/imx-media-of.c @@ -23,36 +23,25 @@ int imx_media_of_add_csi(struct imx_media_dev *imxmd, struct device_node *csi_np) { - int ret; - if (!of_device_is_available(csi_np)) { dev_dbg(imxmd->md.dev, "%s: %pOFn not enabled\n", __func__, csi_np); - /* unavailable is not an error */ - return 0; + return -ENODEV; } /* add CSI fwnode to async notifier */ - ret = imx_media_add_async_subdev(imxmd, of_fwnode_handle(csi_np), NULL); - if (ret) { - if (ret == -EEXIST) { - /* already added, everything is fine */ - return 0; - } - - /* other error, can't continue */ - return ret; - } - - return 0; + return imx_media_add_async_subdev(imxmd, of_fwnode_handle(csi_np), + NULL); } EXPORT_SYMBOL_GPL(imx_media_of_add_csi); int imx_media_add_of_subdevs(struct imx_media_dev *imxmd, struct device_node *np) { + bool ipu_found[2] = {false, false}; struct device_node *csi_np; int i, ret; + u32 ipu_id; for (i = 0; ; i++) { csi_np = of_parse_phandle(np, "ports", i); @@ -60,12 +49,43 @@ int imx_media_add_of_subdevs(struct imx_media_dev *imxmd, break; ret = imx_media_of_add_csi(imxmd, csi_np); - of_node_put(csi_np); - if (ret) - return ret; + if (ret) { + /* unavailable or already added is not an error */ + if (ret == -ENODEV || ret == -EEXIST) { + of_node_put(csi_np); + continue; + } + + /* other error, can't continue */ + goto err_out; + } + + ret = of_alias_get_id(csi_np->parent, "ipu"); + if (ret < 0) + goto err_out; + if (ret > 1) { + ret = -EINVAL; + goto err_out; + } + + ipu_id = ret; + + if (!ipu_found[ipu_id]) { + ret = imx_media_add_ipu_internal_subdevs(imxmd, + ipu_id); + if (ret) + goto err_out; + } + + ipu_found[ipu_id] = true; } return 0; + +err_out: + imx_media_remove_ipu_internal_subdevs(imxmd); + of_node_put(csi_np); + return ret; } /* diff --git a/drivers/staging/media/imx/imx-media.h b/drivers/staging/media/imx/imx-media.h index ccbfc4438c85..dd603a6b3a70 100644 --- a/drivers/staging/media/imx/imx-media.h +++ b/drivers/staging/media/imx/imx-media.h @@ -252,7 +252,8 @@ struct imx_media_fim *imx_media_fim_init(struct v4l2_subdev *sd); void imx_media_fim_free(struct imx_media_fim *fim); /* imx-media-internal-sd.c */ -int imx_media_add_ipu_internal_subdevs(struct imx_media_dev *imxmd); +int imx_media_add_ipu_internal_subdevs(struct imx_media_dev *imxmd, + int ipu_id); int imx_media_create_ipu_internal_links(struct imx_media_dev *imxmd, struct v4l2_subdev *sd); void imx_media_remove_ipu_internal_subdevs(struct imx_media_dev *imxmd); diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c index 3fba7c27c0ec..1ba62fcdcae8 100644 --- a/drivers/staging/media/imx/imx7-media-csi.c +++ b/drivers/staging/media/imx/imx7-media-csi.c @@ -1271,7 +1271,7 @@ static int imx7_csi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, &csi->sd); ret = imx_media_of_add_csi(imxmd, node); - if (ret < 0) + if (ret < 0 && ret != -ENODEV && ret != -EEXIST) goto cleanup; ret = imx_media_dev_notifier_register(imxmd);

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Linux-stable-mirror March 2019