July 2025 - Linux-stable-mirror

FAILED: patch "[PATCH] i2c: omap: Handle omap_i2c_init() errors in omap_i2c_probe()" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x a9503a2ecd95e23d7243bcde7138192de8c1c281 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025072121-attendant-puma-a775@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a9503a2ecd95e23d7243bcde7138192de8c1c281 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Date: Sat, 5 Jul 2025 09:57:37 +0200 Subject: [PATCH] i2c: omap: Handle omap_i2c_init() errors in omap_i2c_probe() omap_i2c_init() can fail. Handle this error in omap_i2c_probe(). Fixes: 010d442c4a29 ("i2c: New bus driver for TI OMAP boards") Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Cc: <stable(a)vger.kernel.org> # v2.6.19+ Signed-off-by: Andi Shyti <andi.shyti(a)kernel.org> Link: https://lore.kernel.org/r/565311abf9bafd7291ca82bcecb48c1fac1e727b.17517017… diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 8b01df3cc8e9..17db58195c06 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -1472,7 +1472,9 @@ omap_i2c_probe(struct platform_device *pdev) } /* reset ASAP, clearing any IRQs */ - omap_i2c_init(omap); + r = omap_i2c_init(omap); + if (r) + goto err_mux_state_deselect; if (omap->rev < OMAP_I2C_OMAP1_REV_2) r = devm_request_irq(&pdev->dev, omap->irq, omap_i2c_omap1_isr, @@ -1515,6 +1517,7 @@ omap_i2c_probe(struct platform_device *pdev) err_unuse_clocks: omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, 0); +err_mux_state_deselect: if (omap->mux_state) mux_state_deselect(omap->mux_state); err_put_pm:

1 month, 1 week

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FAILED: patch "[PATCH] i2c: omap: Handle omap_i2c_init() errors in omap_i2c_probe()" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x a9503a2ecd95e23d7243bcde7138192de8c1c281 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025072120-autism-unroll-a7bd@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a9503a2ecd95e23d7243bcde7138192de8c1c281 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Date: Sat, 5 Jul 2025 09:57:37 +0200 Subject: [PATCH] i2c: omap: Handle omap_i2c_init() errors in omap_i2c_probe() omap_i2c_init() can fail. Handle this error in omap_i2c_probe(). Fixes: 010d442c4a29 ("i2c: New bus driver for TI OMAP boards") Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Cc: <stable(a)vger.kernel.org> # v2.6.19+ Signed-off-by: Andi Shyti <andi.shyti(a)kernel.org> Link: https://lore.kernel.org/r/565311abf9bafd7291ca82bcecb48c1fac1e727b.17517017… diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 8b01df3cc8e9..17db58195c06 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -1472,7 +1472,9 @@ omap_i2c_probe(struct platform_device *pdev) } /* reset ASAP, clearing any IRQs */ - omap_i2c_init(omap); + r = omap_i2c_init(omap); + if (r) + goto err_mux_state_deselect; if (omap->rev < OMAP_I2C_OMAP1_REV_2) r = devm_request_irq(&pdev->dev, omap->irq, omap_i2c_omap1_isr, @@ -1515,6 +1517,7 @@ omap_i2c_probe(struct platform_device *pdev) err_unuse_clocks: omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, 0); +err_mux_state_deselect: if (omap->mux_state) mux_state_deselect(omap->mux_state); err_put_pm:

1 month, 1 week

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FAILED: patch "[PATCH] i2c: omap: Handle omap_i2c_init() errors in omap_i2c_probe()" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x a9503a2ecd95e23d7243bcde7138192de8c1c281 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025072120-crop-penny-6e87@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a9503a2ecd95e23d7243bcde7138192de8c1c281 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Date: Sat, 5 Jul 2025 09:57:37 +0200 Subject: [PATCH] i2c: omap: Handle omap_i2c_init() errors in omap_i2c_probe() omap_i2c_init() can fail. Handle this error in omap_i2c_probe(). Fixes: 010d442c4a29 ("i2c: New bus driver for TI OMAP boards") Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Cc: <stable(a)vger.kernel.org> # v2.6.19+ Signed-off-by: Andi Shyti <andi.shyti(a)kernel.org> Link: https://lore.kernel.org/r/565311abf9bafd7291ca82bcecb48c1fac1e727b.17517017… diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 8b01df3cc8e9..17db58195c06 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -1472,7 +1472,9 @@ omap_i2c_probe(struct platform_device *pdev) } /* reset ASAP, clearing any IRQs */ - omap_i2c_init(omap); + r = omap_i2c_init(omap); + if (r) + goto err_mux_state_deselect; if (omap->rev < OMAP_I2C_OMAP1_REV_2) r = devm_request_irq(&pdev->dev, omap->irq, omap_i2c_omap1_isr, @@ -1515,6 +1517,7 @@ omap_i2c_probe(struct platform_device *pdev) err_unuse_clocks: omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, 0); +err_mux_state_deselect: if (omap->mux_state) mux_state_deselect(omap->mux_state); err_put_pm:

1 month, 1 week

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FAILED: patch "[PATCH] i2c: omap: Handle omap_i2c_init() errors in omap_i2c_probe()" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x a9503a2ecd95e23d7243bcde7138192de8c1c281 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025072119-chili-word-b009@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a9503a2ecd95e23d7243bcde7138192de8c1c281 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Date: Sat, 5 Jul 2025 09:57:37 +0200 Subject: [PATCH] i2c: omap: Handle omap_i2c_init() errors in omap_i2c_probe() omap_i2c_init() can fail. Handle this error in omap_i2c_probe(). Fixes: 010d442c4a29 ("i2c: New bus driver for TI OMAP boards") Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> Cc: <stable(a)vger.kernel.org> # v2.6.19+ Signed-off-by: Andi Shyti <andi.shyti(a)kernel.org> Link: https://lore.kernel.org/r/565311abf9bafd7291ca82bcecb48c1fac1e727b.17517017… diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 8b01df3cc8e9..17db58195c06 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -1472,7 +1472,9 @@ omap_i2c_probe(struct platform_device *pdev) } /* reset ASAP, clearing any IRQs */ - omap_i2c_init(omap); + r = omap_i2c_init(omap); + if (r) + goto err_mux_state_deselect; if (omap->rev < OMAP_I2C_OMAP1_REV_2) r = devm_request_irq(&pdev->dev, omap->irq, omap_i2c_omap1_isr, @@ -1515,6 +1517,7 @@ omap_i2c_probe(struct platform_device *pdev) err_unuse_clocks: omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, 0); +err_mux_state_deselect: if (omap->mux_state) mux_state_deselect(omap->mux_state); err_put_pm:

1 month, 1 week

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FAILED: patch "[PATCH] i2c: stm32f7: unmap DMA mapped buffer" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 6aae87fe7f180cd93a74466cdb6cf2aa9bb28798 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025072107-provolone-sagging-274b@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 6aae87fe7f180cd93a74466cdb6cf2aa9bb28798 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Cl=C3=A9ment=20Le=20Goffic?= <clement.legoffic(a)foss.st.com> Date: Fri, 4 Jul 2025 10:39:15 +0200 Subject: [PATCH] i2c: stm32f7: unmap DMA mapped buffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Before each I2C transfer using DMA, the I2C buffer is DMA'pped to make sure the memory buffer is DMA'able. This is handle in the function `stm32_i2c_prep_dma_xfer()`. If the transfer fails for any reason the I2C buffer must be unmap. Use the dma_callback to factorize the code and fix this issue. Note that the `stm32f7_i2c_dma_callback()` is now called in case of DMA transfer success and error and that the `complete()` on the dma_complete completion structure is done inconditionnally in case of transfer success or error as well as the `dmaengine_terminate_async()`. This is allowed as a `complete()` in case transfer error has no effect as well as a `dmaengine_terminate_async()` on a transfer success. Also fix the unneeded cast and remove not more needed variables. Fixes: 7ecc8cfde553 ("i2c: i2c-stm32f7: Add DMA support") Signed-off-by: Clément Le Goffic <clement.legoffic(a)foss.st.com> Cc: <stable(a)vger.kernel.org> # v4.18+ Acked-by: Alain Volmat <alain.volmat(a)foss.st.com> Signed-off-by: Andi Shyti <andi.shyti(a)kernel.org> Link: https://lore.kernel.org/r/20250704-i2c-upstream-v4-2-84a095a2c728@foss.st.c… diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index 817d081460c2..73a7b8894c0d 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -739,10 +739,11 @@ static void stm32f7_i2c_disable_dma_req(struct stm32f7_i2c_dev *i2c_dev) static void stm32f7_i2c_dma_callback(void *arg) { - struct stm32f7_i2c_dev *i2c_dev = (struct stm32f7_i2c_dev *)arg; + struct stm32f7_i2c_dev *i2c_dev = arg; struct stm32_i2c_dma *dma = i2c_dev->dma; stm32f7_i2c_disable_dma_req(i2c_dev); + dmaengine_terminate_async(dma->chan_using); dma_unmap_single(i2c_dev->dev, dma->dma_buf, dma->dma_len, dma->dma_data_dir); complete(&dma->dma_complete); @@ -1510,7 +1511,6 @@ static irqreturn_t stm32f7_i2c_handle_isr_errs(struct stm32f7_i2c_dev *i2c_dev, u16 addr = f7_msg->addr; void __iomem *base = i2c_dev->base; struct device *dev = i2c_dev->dev; - struct stm32_i2c_dma *dma = i2c_dev->dma; /* Bus error */ if (status & STM32F7_I2C_ISR_BERR) { @@ -1551,10 +1551,8 @@ static irqreturn_t stm32f7_i2c_handle_isr_errs(struct stm32f7_i2c_dev *i2c_dev, } /* Disable dma */ - if (i2c_dev->use_dma) { - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); - } + if (i2c_dev->use_dma) + stm32f7_i2c_dma_callback(i2c_dev); i2c_dev->master_mode = false; complete(&i2c_dev->complete); @@ -1600,7 +1598,6 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) { struct stm32f7_i2c_dev *i2c_dev = data; struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; - struct stm32_i2c_dma *dma = i2c_dev->dma; void __iomem *base = i2c_dev->base; u32 status, mask; int ret; @@ -1619,10 +1616,8 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) dev_dbg(i2c_dev->dev, "<%s>: Receive NACK (addr %x)\n", __func__, f7_msg->addr); writel_relaxed(STM32F7_I2C_ICR_NACKCF, base + STM32F7_I2C_ICR); - if (i2c_dev->use_dma) { - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); - } + if (i2c_dev->use_dma) + stm32f7_i2c_dma_callback(i2c_dev); f7_msg->result = -ENXIO; } @@ -1640,8 +1635,7 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) ret = wait_for_completion_timeout(&i2c_dev->dma->dma_complete, HZ); if (!ret) { dev_dbg(i2c_dev->dev, "<%s>: Timed out\n", __func__); - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); + stm32f7_i2c_dma_callback(i2c_dev); f7_msg->result = -ETIMEDOUT; } }

1 month, 1 week

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FAILED: patch "[PATCH] i2c: stm32f7: unmap DMA mapped buffer" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 6aae87fe7f180cd93a74466cdb6cf2aa9bb28798 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025072106-unburned-armory-4501@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 6aae87fe7f180cd93a74466cdb6cf2aa9bb28798 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Cl=C3=A9ment=20Le=20Goffic?= <clement.legoffic(a)foss.st.com> Date: Fri, 4 Jul 2025 10:39:15 +0200 Subject: [PATCH] i2c: stm32f7: unmap DMA mapped buffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Before each I2C transfer using DMA, the I2C buffer is DMA'pped to make sure the memory buffer is DMA'able. This is handle in the function `stm32_i2c_prep_dma_xfer()`. If the transfer fails for any reason the I2C buffer must be unmap. Use the dma_callback to factorize the code and fix this issue. Note that the `stm32f7_i2c_dma_callback()` is now called in case of DMA transfer success and error and that the `complete()` on the dma_complete completion structure is done inconditionnally in case of transfer success or error as well as the `dmaengine_terminate_async()`. This is allowed as a `complete()` in case transfer error has no effect as well as a `dmaengine_terminate_async()` on a transfer success. Also fix the unneeded cast and remove not more needed variables. Fixes: 7ecc8cfde553 ("i2c: i2c-stm32f7: Add DMA support") Signed-off-by: Clément Le Goffic <clement.legoffic(a)foss.st.com> Cc: <stable(a)vger.kernel.org> # v4.18+ Acked-by: Alain Volmat <alain.volmat(a)foss.st.com> Signed-off-by: Andi Shyti <andi.shyti(a)kernel.org> Link: https://lore.kernel.org/r/20250704-i2c-upstream-v4-2-84a095a2c728@foss.st.c… diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index 817d081460c2..73a7b8894c0d 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -739,10 +739,11 @@ static void stm32f7_i2c_disable_dma_req(struct stm32f7_i2c_dev *i2c_dev) static void stm32f7_i2c_dma_callback(void *arg) { - struct stm32f7_i2c_dev *i2c_dev = (struct stm32f7_i2c_dev *)arg; + struct stm32f7_i2c_dev *i2c_dev = arg; struct stm32_i2c_dma *dma = i2c_dev->dma; stm32f7_i2c_disable_dma_req(i2c_dev); + dmaengine_terminate_async(dma->chan_using); dma_unmap_single(i2c_dev->dev, dma->dma_buf, dma->dma_len, dma->dma_data_dir); complete(&dma->dma_complete); @@ -1510,7 +1511,6 @@ static irqreturn_t stm32f7_i2c_handle_isr_errs(struct stm32f7_i2c_dev *i2c_dev, u16 addr = f7_msg->addr; void __iomem *base = i2c_dev->base; struct device *dev = i2c_dev->dev; - struct stm32_i2c_dma *dma = i2c_dev->dma; /* Bus error */ if (status & STM32F7_I2C_ISR_BERR) { @@ -1551,10 +1551,8 @@ static irqreturn_t stm32f7_i2c_handle_isr_errs(struct stm32f7_i2c_dev *i2c_dev, } /* Disable dma */ - if (i2c_dev->use_dma) { - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); - } + if (i2c_dev->use_dma) + stm32f7_i2c_dma_callback(i2c_dev); i2c_dev->master_mode = false; complete(&i2c_dev->complete); @@ -1600,7 +1598,6 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) { struct stm32f7_i2c_dev *i2c_dev = data; struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; - struct stm32_i2c_dma *dma = i2c_dev->dma; void __iomem *base = i2c_dev->base; u32 status, mask; int ret; @@ -1619,10 +1616,8 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) dev_dbg(i2c_dev->dev, "<%s>: Receive NACK (addr %x)\n", __func__, f7_msg->addr); writel_relaxed(STM32F7_I2C_ICR_NACKCF, base + STM32F7_I2C_ICR); - if (i2c_dev->use_dma) { - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); - } + if (i2c_dev->use_dma) + stm32f7_i2c_dma_callback(i2c_dev); f7_msg->result = -ENXIO; } @@ -1640,8 +1635,7 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) ret = wait_for_completion_timeout(&i2c_dev->dma->dma_complete, HZ); if (!ret) { dev_dbg(i2c_dev->dev, "<%s>: Timed out\n", __func__); - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); + stm32f7_i2c_dma_callback(i2c_dev); f7_msg->result = -ETIMEDOUT; } }

1 month, 1 week

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FAILED: patch "[PATCH] i2c: stm32f7: unmap DMA mapped buffer" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 6aae87fe7f180cd93a74466cdb6cf2aa9bb28798 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025072105-chatroom-overbuilt-5fd3@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 6aae87fe7f180cd93a74466cdb6cf2aa9bb28798 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Cl=C3=A9ment=20Le=20Goffic?= <clement.legoffic(a)foss.st.com> Date: Fri, 4 Jul 2025 10:39:15 +0200 Subject: [PATCH] i2c: stm32f7: unmap DMA mapped buffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Before each I2C transfer using DMA, the I2C buffer is DMA'pped to make sure the memory buffer is DMA'able. This is handle in the function `stm32_i2c_prep_dma_xfer()`. If the transfer fails for any reason the I2C buffer must be unmap. Use the dma_callback to factorize the code and fix this issue. Note that the `stm32f7_i2c_dma_callback()` is now called in case of DMA transfer success and error and that the `complete()` on the dma_complete completion structure is done inconditionnally in case of transfer success or error as well as the `dmaengine_terminate_async()`. This is allowed as a `complete()` in case transfer error has no effect as well as a `dmaengine_terminate_async()` on a transfer success. Also fix the unneeded cast and remove not more needed variables. Fixes: 7ecc8cfde553 ("i2c: i2c-stm32f7: Add DMA support") Signed-off-by: Clément Le Goffic <clement.legoffic(a)foss.st.com> Cc: <stable(a)vger.kernel.org> # v4.18+ Acked-by: Alain Volmat <alain.volmat(a)foss.st.com> Signed-off-by: Andi Shyti <andi.shyti(a)kernel.org> Link: https://lore.kernel.org/r/20250704-i2c-upstream-v4-2-84a095a2c728@foss.st.c… diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index 817d081460c2..73a7b8894c0d 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -739,10 +739,11 @@ static void stm32f7_i2c_disable_dma_req(struct stm32f7_i2c_dev *i2c_dev) static void stm32f7_i2c_dma_callback(void *arg) { - struct stm32f7_i2c_dev *i2c_dev = (struct stm32f7_i2c_dev *)arg; + struct stm32f7_i2c_dev *i2c_dev = arg; struct stm32_i2c_dma *dma = i2c_dev->dma; stm32f7_i2c_disable_dma_req(i2c_dev); + dmaengine_terminate_async(dma->chan_using); dma_unmap_single(i2c_dev->dev, dma->dma_buf, dma->dma_len, dma->dma_data_dir); complete(&dma->dma_complete); @@ -1510,7 +1511,6 @@ static irqreturn_t stm32f7_i2c_handle_isr_errs(struct stm32f7_i2c_dev *i2c_dev, u16 addr = f7_msg->addr; void __iomem *base = i2c_dev->base; struct device *dev = i2c_dev->dev; - struct stm32_i2c_dma *dma = i2c_dev->dma; /* Bus error */ if (status & STM32F7_I2C_ISR_BERR) { @@ -1551,10 +1551,8 @@ static irqreturn_t stm32f7_i2c_handle_isr_errs(struct stm32f7_i2c_dev *i2c_dev, } /* Disable dma */ - if (i2c_dev->use_dma) { - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); - } + if (i2c_dev->use_dma) + stm32f7_i2c_dma_callback(i2c_dev); i2c_dev->master_mode = false; complete(&i2c_dev->complete); @@ -1600,7 +1598,6 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) { struct stm32f7_i2c_dev *i2c_dev = data; struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; - struct stm32_i2c_dma *dma = i2c_dev->dma; void __iomem *base = i2c_dev->base; u32 status, mask; int ret; @@ -1619,10 +1616,8 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) dev_dbg(i2c_dev->dev, "<%s>: Receive NACK (addr %x)\n", __func__, f7_msg->addr); writel_relaxed(STM32F7_I2C_ICR_NACKCF, base + STM32F7_I2C_ICR); - if (i2c_dev->use_dma) { - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); - } + if (i2c_dev->use_dma) + stm32f7_i2c_dma_callback(i2c_dev); f7_msg->result = -ENXIO; } @@ -1640,8 +1635,7 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) ret = wait_for_completion_timeout(&i2c_dev->dma->dma_complete, HZ); if (!ret) { dev_dbg(i2c_dev->dev, "<%s>: Timed out\n", __func__); - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); + stm32f7_i2c_dma_callback(i2c_dev); f7_msg->result = -ETIMEDOUT; } }

1 month, 1 week

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FAILED: patch "[PATCH] i2c: stm32f7: unmap DMA mapped buffer" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 6aae87fe7f180cd93a74466cdb6cf2aa9bb28798 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025072105-hardwired-crummy-801a@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 6aae87fe7f180cd93a74466cdb6cf2aa9bb28798 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Cl=C3=A9ment=20Le=20Goffic?= <clement.legoffic(a)foss.st.com> Date: Fri, 4 Jul 2025 10:39:15 +0200 Subject: [PATCH] i2c: stm32f7: unmap DMA mapped buffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Before each I2C transfer using DMA, the I2C buffer is DMA'pped to make sure the memory buffer is DMA'able. This is handle in the function `stm32_i2c_prep_dma_xfer()`. If the transfer fails for any reason the I2C buffer must be unmap. Use the dma_callback to factorize the code and fix this issue. Note that the `stm32f7_i2c_dma_callback()` is now called in case of DMA transfer success and error and that the `complete()` on the dma_complete completion structure is done inconditionnally in case of transfer success or error as well as the `dmaengine_terminate_async()`. This is allowed as a `complete()` in case transfer error has no effect as well as a `dmaengine_terminate_async()` on a transfer success. Also fix the unneeded cast and remove not more needed variables. Fixes: 7ecc8cfde553 ("i2c: i2c-stm32f7: Add DMA support") Signed-off-by: Clément Le Goffic <clement.legoffic(a)foss.st.com> Cc: <stable(a)vger.kernel.org> # v4.18+ Acked-by: Alain Volmat <alain.volmat(a)foss.st.com> Signed-off-by: Andi Shyti <andi.shyti(a)kernel.org> Link: https://lore.kernel.org/r/20250704-i2c-upstream-v4-2-84a095a2c728@foss.st.c… diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index 817d081460c2..73a7b8894c0d 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -739,10 +739,11 @@ static void stm32f7_i2c_disable_dma_req(struct stm32f7_i2c_dev *i2c_dev) static void stm32f7_i2c_dma_callback(void *arg) { - struct stm32f7_i2c_dev *i2c_dev = (struct stm32f7_i2c_dev *)arg; + struct stm32f7_i2c_dev *i2c_dev = arg; struct stm32_i2c_dma *dma = i2c_dev->dma; stm32f7_i2c_disable_dma_req(i2c_dev); + dmaengine_terminate_async(dma->chan_using); dma_unmap_single(i2c_dev->dev, dma->dma_buf, dma->dma_len, dma->dma_data_dir); complete(&dma->dma_complete); @@ -1510,7 +1511,6 @@ static irqreturn_t stm32f7_i2c_handle_isr_errs(struct stm32f7_i2c_dev *i2c_dev, u16 addr = f7_msg->addr; void __iomem *base = i2c_dev->base; struct device *dev = i2c_dev->dev; - struct stm32_i2c_dma *dma = i2c_dev->dma; /* Bus error */ if (status & STM32F7_I2C_ISR_BERR) { @@ -1551,10 +1551,8 @@ static irqreturn_t stm32f7_i2c_handle_isr_errs(struct stm32f7_i2c_dev *i2c_dev, } /* Disable dma */ - if (i2c_dev->use_dma) { - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); - } + if (i2c_dev->use_dma) + stm32f7_i2c_dma_callback(i2c_dev); i2c_dev->master_mode = false; complete(&i2c_dev->complete); @@ -1600,7 +1598,6 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) { struct stm32f7_i2c_dev *i2c_dev = data; struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; - struct stm32_i2c_dma *dma = i2c_dev->dma; void __iomem *base = i2c_dev->base; u32 status, mask; int ret; @@ -1619,10 +1616,8 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) dev_dbg(i2c_dev->dev, "<%s>: Receive NACK (addr %x)\n", __func__, f7_msg->addr); writel_relaxed(STM32F7_I2C_ICR_NACKCF, base + STM32F7_I2C_ICR); - if (i2c_dev->use_dma) { - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); - } + if (i2c_dev->use_dma) + stm32f7_i2c_dma_callback(i2c_dev); f7_msg->result = -ENXIO; } @@ -1640,8 +1635,7 @@ static irqreturn_t stm32f7_i2c_isr_event_thread(int irq, void *data) ret = wait_for_completion_timeout(&i2c_dev->dma->dma_complete, HZ); if (!ret) { dev_dbg(i2c_dev->dev, "<%s>: Timed out\n", __func__); - stm32f7_i2c_disable_dma_req(i2c_dev); - dmaengine_terminate_async(dma->chan_using); + stm32f7_i2c_dma_callback(i2c_dev); f7_msg->result = -ETIMEDOUT; } }

1 month, 1 week

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FAILED: patch "[PATCH] usb: dwc3: qcom: Don't leave BCR asserted" failed to apply to all-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the all-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-all.y git checkout FETCH_HEAD git cherry-pick -x ef8abc0ba49ce717e6bc4124e88e59982671f3b5 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025072108-canned-impound-9ee7@gregkh' --subject-prefix 'PATCH all.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From ef8abc0ba49ce717e6bc4124e88e59982671f3b5 Mon Sep 17 00:00:00 2001 From: Krishna Kurapati <krishna.kurapati(a)oss.qualcomm.com> Date: Wed, 9 Jul 2025 18:59:00 +0530 Subject: [PATCH] usb: dwc3: qcom: Don't leave BCR asserted Leaving the USB BCR asserted prevents the associated GDSC to turn on. This blocks any subsequent attempts of probing the device, e.g. after a probe deferral, with the following showing in the log: [ 1.332226] usb30_prim_gdsc status stuck at 'off' Leave the BCR deasserted when exiting the driver to avoid this issue. Cc: stable <stable(a)kernel.org> Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver") Acked-by: Thinh Nguyen <Thinh.Nguyen(a)synopsys.com> Reviewed-by: Konrad Dybcio <konrad.dybcio(a)oss.qualcomm.com> Signed-off-by: Krishna Kurapati <krishna.kurapati(a)oss.qualcomm.com> Link: https://lore.kernel.org/r/20250709132900.3408752-1-krishna.kurapati@oss.qua… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 7334de85ad10..ca7e1c02773a 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -680,12 +680,12 @@ static int dwc3_qcom_probe(struct platform_device *pdev) ret = reset_control_deassert(qcom->resets); if (ret) { dev_err(&pdev->dev, "failed to deassert resets, err=%d\n", ret); - goto reset_assert; + return ret; } ret = clk_bulk_prepare_enable(qcom->num_clocks, qcom->clks); if (ret < 0) - goto reset_assert; + return ret; r = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!r) { @@ -755,8 +755,6 @@ static int dwc3_qcom_probe(struct platform_device *pdev) dwc3_core_remove(&qcom->dwc); clk_disable: clk_bulk_disable_unprepare(qcom->num_clocks, qcom->clks); -reset_assert: - reset_control_assert(qcom->resets); return ret; } @@ -771,7 +769,6 @@ static void dwc3_qcom_remove(struct platform_device *pdev) clk_bulk_disable_unprepare(qcom->num_clocks, qcom->clks); dwc3_qcom_interconnect_exit(qcom); - reset_control_assert(qcom->resets); } static int dwc3_qcom_pm_suspend(struct device *dev)

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FAILED: patch "[PATCH] bpf, sockmap: Fix panic when calling skb_linearize" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-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>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 5ca2e29f6834c64c0e5a9ccf1278c21fb49b827e # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025071437-unloaded-unstitch-e838@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 5ca2e29f6834c64c0e5a9ccf1278c21fb49b827e Mon Sep 17 00:00:00 2001 From: Jiayuan Chen <jiayuan.chen(a)linux.dev> Date: Mon, 7 Apr 2025 22:21:22 +0800 Subject: [PATCH] bpf, sockmap: Fix panic when calling skb_linearize MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The panic can be reproduced by executing the command: ./bench sockmap -c 2 -p 1 -a --rx-verdict-ingress --rx-strp 100000 Then a kernel panic was captured: ''' [ 657.460555] kernel BUG at net/core/skbuff.c:2178! [ 657.462680] Tainted: [W]=WARN [ 657.463287] Workqueue: events sk_psock_backlog ... [ 657.469610] <TASK> [ 657.469738] ? die+0x36/0x90 [ 657.469916] ? do_trap+0x1d0/0x270 [ 657.470118] ? pskb_expand_head+0x612/0xf40 [ 657.470376] ? pskb_expand_head+0x612/0xf40 [ 657.470620] ? do_error_trap+0xa3/0x170 [ 657.470846] ? pskb_expand_head+0x612/0xf40 [ 657.471092] ? handle_invalid_op+0x2c/0x40 [ 657.471335] ? pskb_expand_head+0x612/0xf40 [ 657.471579] ? exc_invalid_op+0x2d/0x40 [ 657.471805] ? asm_exc_invalid_op+0x1a/0x20 [ 657.472052] ? pskb_expand_head+0xd1/0xf40 [ 657.472292] ? pskb_expand_head+0x612/0xf40 [ 657.472540] ? lock_acquire+0x18f/0x4e0 [ 657.472766] ? find_held_lock+0x2d/0x110 [ 657.472999] ? __pfx_pskb_expand_head+0x10/0x10 [ 657.473263] ? __kmalloc_cache_noprof+0x5b/0x470 [ 657.473537] ? __pfx___lock_release.isra.0+0x10/0x10 [ 657.473826] __pskb_pull_tail+0xfd/0x1d20 [ 657.474062] ? __kasan_slab_alloc+0x4e/0x90 [ 657.474707] sk_psock_skb_ingress_enqueue+0x3bf/0x510 [ 657.475392] ? __kasan_kmalloc+0xaa/0xb0 [ 657.476010] sk_psock_backlog+0x5cf/0xd70 [ 657.476637] process_one_work+0x858/0x1a20 ''' The panic originates from the assertion BUG_ON(skb_shared(skb)) in skb_linearize(). A previous commit(see Fixes tag) introduced skb_get() to avoid race conditions between skb operations in the backlog and skb release in the recvmsg path. However, this caused the panic to always occur when skb_linearize is executed. The "--rx-strp 100000" parameter forces the RX path to use the strparser module which aggregates data until it reaches 100KB before calling sockmap logic. The 100KB payload exceeds MAX_MSG_FRAGS, triggering skb_linearize. To fix this issue, just move skb_get into sk_psock_skb_ingress_enqueue. ''' sk_psock_backlog: sk_psock_handle_skb skb_get(skb) <== we move it into 'sk_psock_skb_ingress_enqueue' sk_psock_skb_ingress____________ ↓ | | → sk_psock_skb_ingress_self | sk_psock_skb_ingress_enqueue sk_psock_verdict_apply_________________↑ skb_linearize ''' Note that for verdict_apply path, the skb_get operation is unnecessary so we add 'take_ref' param to control it's behavior. Fixes: a454d84ee20b ("bpf, sockmap: Fix skb refcnt race after locking changes") Signed-off-by: Jiayuan Chen <jiayuan.chen(a)linux.dev> Link: https://lore.kernel.org/r/20250407142234.47591-4-jiayuan.chen@linux.dev Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> diff --git a/net/core/skmsg.c b/net/core/skmsg.c index 9533b3e40ad7..276934673066 100644 --- a/net/core/skmsg.c +++ b/net/core/skmsg.c @@ -530,16 +530,22 @@ static int sk_psock_skb_ingress_enqueue(struct sk_buff *skb, u32 off, u32 len, struct sk_psock *psock, struct sock *sk, - struct sk_msg *msg) + struct sk_msg *msg, + bool take_ref) { int num_sge, copied; + /* skb_to_sgvec will fail when the total number of fragments in + * frag_list and frags exceeds MAX_MSG_FRAGS. For example, the + * caller may aggregate multiple skbs. + */ num_sge = skb_to_sgvec(skb, msg->sg.data, off, len); if (num_sge < 0) { /* skb linearize may fail with ENOMEM, but lets simply try again * later if this happens. Under memory pressure we don't want to * drop the skb. We need to linearize the skb so that the mapping * in skb_to_sgvec can not error. + * Note that skb_linearize requires the skb not to be shared. */ if (skb_linearize(skb)) return -EAGAIN; @@ -556,7 +562,7 @@ static int sk_psock_skb_ingress_enqueue(struct sk_buff *skb, msg->sg.start = 0; msg->sg.size = copied; msg->sg.end = num_sge; - msg->skb = skb; + msg->skb = take_ref ? skb_get(skb) : skb; sk_psock_queue_msg(psock, msg); sk_psock_data_ready(sk, psock); @@ -564,7 +570,7 @@ static int sk_psock_skb_ingress_enqueue(struct sk_buff *skb, } static int sk_psock_skb_ingress_self(struct sk_psock *psock, struct sk_buff *skb, - u32 off, u32 len); + u32 off, u32 len, bool take_ref); static int sk_psock_skb_ingress(struct sk_psock *psock, struct sk_buff *skb, u32 off, u32 len) @@ -578,7 +584,7 @@ static int sk_psock_skb_ingress(struct sk_psock *psock, struct sk_buff *skb, * correctly. */ if (unlikely(skb->sk == sk)) - return sk_psock_skb_ingress_self(psock, skb, off, len); + return sk_psock_skb_ingress_self(psock, skb, off, len, true); msg = sk_psock_create_ingress_msg(sk, skb); if (!msg) return -EAGAIN; @@ -590,7 +596,7 @@ static int sk_psock_skb_ingress(struct sk_psock *psock, struct sk_buff *skb, * into user buffers. */ skb_set_owner_r(skb, sk); - err = sk_psock_skb_ingress_enqueue(skb, off, len, psock, sk, msg); + err = sk_psock_skb_ingress_enqueue(skb, off, len, psock, sk, msg, true); if (err < 0) kfree(msg); return err; @@ -601,7 +607,7 @@ static int sk_psock_skb_ingress(struct sk_psock *psock, struct sk_buff *skb, * because the skb is already accounted for here. */ static int sk_psock_skb_ingress_self(struct sk_psock *psock, struct sk_buff *skb, - u32 off, u32 len) + u32 off, u32 len, bool take_ref) { struct sk_msg *msg = alloc_sk_msg(GFP_ATOMIC); struct sock *sk = psock->sk; @@ -610,7 +616,7 @@ static int sk_psock_skb_ingress_self(struct sk_psock *psock, struct sk_buff *skb if (unlikely(!msg)) return -EAGAIN; skb_set_owner_r(skb, sk); - err = sk_psock_skb_ingress_enqueue(skb, off, len, psock, sk, msg); + err = sk_psock_skb_ingress_enqueue(skb, off, len, psock, sk, msg, take_ref); if (err < 0) kfree(msg); return err; @@ -619,18 +625,13 @@ static int sk_psock_skb_ingress_self(struct sk_psock *psock, struct sk_buff *skb static int sk_psock_handle_skb(struct sk_psock *psock, struct sk_buff *skb, u32 off, u32 len, bool ingress) { - int err = 0; - if (!ingress) { if (!sock_writeable(psock->sk)) return -EAGAIN; return skb_send_sock(psock->sk, skb, off, len); } - skb_get(skb); - err = sk_psock_skb_ingress(psock, skb, off, len); - if (err < 0) - kfree_skb(skb); - return err; + + return sk_psock_skb_ingress(psock, skb, off, len); } static void sk_psock_skb_state(struct sk_psock *psock, @@ -1019,7 +1020,7 @@ static int sk_psock_verdict_apply(struct sk_psock *psock, struct sk_buff *skb, off = stm->offset; len = stm->full_len; } - err = sk_psock_skb_ingress_self(psock, skb, off, len); + err = sk_psock_skb_ingress_self(psock, skb, off, len, false); } if (err < 0) { spin_lock_bh(&psock->ingress_lock);

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