May 2025 - Linux-stable-mirror

FAILED: patch "[PATCH] arm64: dts: marvell: uDPU: define pinctrl state for alarm" 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 b04f0d89e880bc2cca6a5c73cf287082c91878da # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052400-sneer-rendering-46c3@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From b04f0d89e880bc2cca6a5c73cf287082c91878da Mon Sep 17 00:00:00 2001 From: Gabor Juhos <j4g8y7(a)gmail.com> Date: Fri, 9 May 2025 15:48:52 +0200 Subject: [PATCH] arm64: dts: marvell: uDPU: define pinctrl state for alarm LEDs The two alarm LEDs of on the uDPU board are stopped working since commit 78efa53e715e ("leds: Init leds class earlier"). The LEDs are driven by the GPIO{15,16} pins of the North Bridge GPIO controller. These pins are part of the 'spi_quad' pin group for which the 'spi' function is selected via the default pinctrl state of the 'spi' node. This is wrong however, since in order to allow controlling the LEDs, the pins should use the 'gpio' function. Before the commit mentined above, the 'spi' function is selected first by the pinctrl core before probing the spi driver, but then it gets overridden to 'gpio' implicitly via the devm_gpiod_get_index_optional() call from the 'leds-gpio' driver. After the commit, the LED subsystem gets initialized before the SPI subsystem, so the function of the pin group remains 'spi' which in turn prevents controlling of the LEDs. Despite the change of the initialization order, the root cause is that the pinctrl state definition is wrong since its initial commit 0d45062cfc89 ("arm64: dts: marvell: Add device tree for uDPU board"), To fix the problem, override the function in the 'spi_quad_pins' node to 'gpio' and move the pinctrl state definition from the 'spi' node into the 'leds' node. Cc: stable(a)vger.kernel.org # needs adjustment for < 6.1 Fixes: 0d45062cfc89 ("arm64: dts: marvell: Add device tree for uDPU board") Signed-off-by: Gabor Juhos <j4g8y7(a)gmail.com> Signed-off-by: Imre Kaloz <kaloz(a)openwrt.org> Signed-off-by: Gregory CLEMENT <gregory.clement(a)bootlin.com> diff --git a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dtsi b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dtsi index 3a9b6907185d..242820845707 100644 --- a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dtsi +++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dtsi @@ -26,6 +26,8 @@ memory@0 { leds { compatible = "gpio-leds"; + pinctrl-names = "default"; + pinctrl-0 = <&spi_quad_pins>; led-power1 { label = "udpu:green:power"; @@ -82,8 +84,6 @@ &sdhci0 { &spi0 { status = "okay"; - pinctrl-names = "default"; - pinctrl-0 = <&spi_quad_pins>; flash@0 { compatible = "jedec,spi-nor"; @@ -108,6 +108,10 @@ partition@180000 { }; }; +&spi_quad_pins { + function = "gpio"; +}; + &pinctrl_nb { i2c2_recovery_pins: i2c2-recovery-pins { groups = "i2c2";

2 weeks

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FAILED: patch "[PATCH] pmdomain: core: Fix error checking in" 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 0f5757667ec0aaf2456c3b76fcf0c6c3ea3591fe # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052400-culinary-streak-b400@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0f5757667ec0aaf2456c3b76fcf0c6c3ea3591fe Mon Sep 17 00:00:00 2001 From: Dan Carpenter <dan.carpenter(a)linaro.org> Date: Thu, 8 May 2025 09:29:23 +0300 Subject: [PATCH] pmdomain: core: Fix error checking in genpd_dev_pm_attach_by_id() The error checking for of_count_phandle_with_args() does not handle negative error codes correctly. The problem is that "index" is a u32 so in the condition "if (index >= num_domains)" negative error codes stored in "num_domains" are type promoted to very high positive values and "index" is always going to be valid. Test for negative error codes first and then test if "index" is valid. Fixes: 3ccf3f0cd197 ("PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain") Signed-off-by: Dan Carpenter <dan.carpenter(a)linaro.org> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/aBxPQ8AI8N5v-7rL@stanley.mountain Signed-off-by: Ulf Hansson <ulf.hansson(a)linaro.org> diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c index 9b2f28b34bb5..d6c1ddb807b2 100644 --- a/drivers/pmdomain/core.c +++ b/drivers/pmdomain/core.c @@ -3126,7 +3126,7 @@ struct device *genpd_dev_pm_attach_by_id(struct device *dev, /* Verify that the index is within a valid range. */ num_domains = of_count_phandle_with_args(dev->of_node, "power-domains", "#power-domain-cells"); - if (index >= num_domains) + if (num_domains < 0 || index >= num_domains) return NULL; /* Allocate and register device on the genpd bus. */

2 weeks

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FAILED: patch "[PATCH] pmdomain: core: Fix error checking in" 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 0f5757667ec0aaf2456c3b76fcf0c6c3ea3591fe # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052459-bully-agreeing-45f1@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0f5757667ec0aaf2456c3b76fcf0c6c3ea3591fe Mon Sep 17 00:00:00 2001 From: Dan Carpenter <dan.carpenter(a)linaro.org> Date: Thu, 8 May 2025 09:29:23 +0300 Subject: [PATCH] pmdomain: core: Fix error checking in genpd_dev_pm_attach_by_id() The error checking for of_count_phandle_with_args() does not handle negative error codes correctly. The problem is that "index" is a u32 so in the condition "if (index >= num_domains)" negative error codes stored in "num_domains" are type promoted to very high positive values and "index" is always going to be valid. Test for negative error codes first and then test if "index" is valid. Fixes: 3ccf3f0cd197 ("PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain") Signed-off-by: Dan Carpenter <dan.carpenter(a)linaro.org> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/aBxPQ8AI8N5v-7rL@stanley.mountain Signed-off-by: Ulf Hansson <ulf.hansson(a)linaro.org> diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c index 9b2f28b34bb5..d6c1ddb807b2 100644 --- a/drivers/pmdomain/core.c +++ b/drivers/pmdomain/core.c @@ -3126,7 +3126,7 @@ struct device *genpd_dev_pm_attach_by_id(struct device *dev, /* Verify that the index is within a valid range. */ num_domains = of_count_phandle_with_args(dev->of_node, "power-domains", "#power-domain-cells"); - if (index >= num_domains) + if (num_domains < 0 || index >= num_domains) return NULL; /* Allocate and register device on the genpd bus. */

2 weeks

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FAILED: patch "[PATCH] pmdomain: core: Fix error checking in" 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 0f5757667ec0aaf2456c3b76fcf0c6c3ea3591fe # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052458-fool-conflict-1a61@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0f5757667ec0aaf2456c3b76fcf0c6c3ea3591fe Mon Sep 17 00:00:00 2001 From: Dan Carpenter <dan.carpenter(a)linaro.org> Date: Thu, 8 May 2025 09:29:23 +0300 Subject: [PATCH] pmdomain: core: Fix error checking in genpd_dev_pm_attach_by_id() The error checking for of_count_phandle_with_args() does not handle negative error codes correctly. The problem is that "index" is a u32 so in the condition "if (index >= num_domains)" negative error codes stored in "num_domains" are type promoted to very high positive values and "index" is always going to be valid. Test for negative error codes first and then test if "index" is valid. Fixes: 3ccf3f0cd197 ("PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain") Signed-off-by: Dan Carpenter <dan.carpenter(a)linaro.org> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/aBxPQ8AI8N5v-7rL@stanley.mountain Signed-off-by: Ulf Hansson <ulf.hansson(a)linaro.org> diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c index 9b2f28b34bb5..d6c1ddb807b2 100644 --- a/drivers/pmdomain/core.c +++ b/drivers/pmdomain/core.c @@ -3126,7 +3126,7 @@ struct device *genpd_dev_pm_attach_by_id(struct device *dev, /* Verify that the index is within a valid range. */ num_domains = of_count_phandle_with_args(dev->of_node, "power-domains", "#power-domain-cells"); - if (index >= num_domains) + if (num_domains < 0 || index >= num_domains) return NULL; /* Allocate and register device on the genpd bus. */

2 weeks

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FAILED: patch "[PATCH] pmdomain: core: Fix error checking in" 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 0f5757667ec0aaf2456c3b76fcf0c6c3ea3591fe # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052459-sleeve-rearrange-e01c@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0f5757667ec0aaf2456c3b76fcf0c6c3ea3591fe Mon Sep 17 00:00:00 2001 From: Dan Carpenter <dan.carpenter(a)linaro.org> Date: Thu, 8 May 2025 09:29:23 +0300 Subject: [PATCH] pmdomain: core: Fix error checking in genpd_dev_pm_attach_by_id() The error checking for of_count_phandle_with_args() does not handle negative error codes correctly. The problem is that "index" is a u32 so in the condition "if (index >= num_domains)" negative error codes stored in "num_domains" are type promoted to very high positive values and "index" is always going to be valid. Test for negative error codes first and then test if "index" is valid. Fixes: 3ccf3f0cd197 ("PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain") Signed-off-by: Dan Carpenter <dan.carpenter(a)linaro.org> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/aBxPQ8AI8N5v-7rL@stanley.mountain Signed-off-by: Ulf Hansson <ulf.hansson(a)linaro.org> diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c index 9b2f28b34bb5..d6c1ddb807b2 100644 --- a/drivers/pmdomain/core.c +++ b/drivers/pmdomain/core.c @@ -3126,7 +3126,7 @@ struct device *genpd_dev_pm_attach_by_id(struct device *dev, /* Verify that the index is within a valid range. */ num_domains = of_count_phandle_with_args(dev->of_node, "power-domains", "#power-domain-cells"); - if (index >= num_domains) + if (num_domains < 0 || index >= num_domains) return NULL; /* Allocate and register device on the genpd bus. */

2 weeks

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FAILED: patch "[PATCH] pmdomain: core: Fix error checking in" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-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-6.6.y git checkout FETCH_HEAD git cherry-pick -x 0f5757667ec0aaf2456c3b76fcf0c6c3ea3591fe # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052458-boogeyman-busily-acd9@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0f5757667ec0aaf2456c3b76fcf0c6c3ea3591fe Mon Sep 17 00:00:00 2001 From: Dan Carpenter <dan.carpenter(a)linaro.org> Date: Thu, 8 May 2025 09:29:23 +0300 Subject: [PATCH] pmdomain: core: Fix error checking in genpd_dev_pm_attach_by_id() The error checking for of_count_phandle_with_args() does not handle negative error codes correctly. The problem is that "index" is a u32 so in the condition "if (index >= num_domains)" negative error codes stored in "num_domains" are type promoted to very high positive values and "index" is always going to be valid. Test for negative error codes first and then test if "index" is valid. Fixes: 3ccf3f0cd197 ("PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain") Signed-off-by: Dan Carpenter <dan.carpenter(a)linaro.org> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/aBxPQ8AI8N5v-7rL@stanley.mountain Signed-off-by: Ulf Hansson <ulf.hansson(a)linaro.org> diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c index 9b2f28b34bb5..d6c1ddb807b2 100644 --- a/drivers/pmdomain/core.c +++ b/drivers/pmdomain/core.c @@ -3126,7 +3126,7 @@ struct device *genpd_dev_pm_attach_by_id(struct device *dev, /* Verify that the index is within a valid range. */ num_domains = of_count_phandle_with_args(dev->of_node, "power-domains", "#power-domain-cells"); - if (index >= num_domains) + if (num_domains < 0 || index >= num_domains) return NULL; /* Allocate and register device on the genpd bus. */

2 weeks

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FAILED: patch "[PATCH] vmxnet3: update MTU after device quiesce" 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 43f0999af011fba646e015f0bb08b6c3002a0170 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052427-entrust-arousal-0ad5@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 43f0999af011fba646e015f0bb08b6c3002a0170 Mon Sep 17 00:00:00 2001 From: Ronak Doshi <ronak.doshi(a)broadcom.com> Date: Thu, 15 May 2025 19:04:56 +0000 Subject: [PATCH] vmxnet3: update MTU after device quiesce Currently, when device mtu is updated, vmxnet3 updates netdev mtu, quiesces the device and then reactivates it for the ESXi to know about the new mtu. So, technically the OS stack can start using the new mtu before ESXi knows about the new mtu. This can lead to issues for TSO packets which use mss as per the new mtu configured. This patch fixes this issue by moving the mtu write after device quiesce. Cc: stable(a)vger.kernel.org Fixes: d1a890fa37f2 ("net: VMware virtual Ethernet NIC driver: vmxnet3") Signed-off-by: Ronak Doshi <ronak.doshi(a)broadcom.com> Acked-by: Guolin Yang <guolin.yang(a)broadcom.com> Changes v1-> v2: Moved MTU write after destroy of rx rings Link: https://patch.msgid.link/20250515190457.8597-1-ronak.doshi@broadcom.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 3df6aabc7e33..c676979c7ab9 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -3607,8 +3607,6 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) struct vmxnet3_adapter *adapter = netdev_priv(netdev); int err = 0; - WRITE_ONCE(netdev->mtu, new_mtu); - /* * Reset_work may be in the middle of resetting the device, wait for its * completion. @@ -3622,6 +3620,7 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) /* we need to re-create the rx queue based on the new mtu */ vmxnet3_rq_destroy_all(adapter); + WRITE_ONCE(netdev->mtu, new_mtu); vmxnet3_adjust_rx_ring_size(adapter); err = vmxnet3_rq_create_all(adapter); if (err) { @@ -3638,6 +3637,8 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) "Closing it\n", err); goto out; } + } else { + WRITE_ONCE(netdev->mtu, new_mtu); } out:

2 weeks

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FAILED: patch "[PATCH] vmxnet3: update MTU after device quiesce" 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 43f0999af011fba646e015f0bb08b6c3002a0170 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052426-pleading-slip-af7c@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 43f0999af011fba646e015f0bb08b6c3002a0170 Mon Sep 17 00:00:00 2001 From: Ronak Doshi <ronak.doshi(a)broadcom.com> Date: Thu, 15 May 2025 19:04:56 +0000 Subject: [PATCH] vmxnet3: update MTU after device quiesce Currently, when device mtu is updated, vmxnet3 updates netdev mtu, quiesces the device and then reactivates it for the ESXi to know about the new mtu. So, technically the OS stack can start using the new mtu before ESXi knows about the new mtu. This can lead to issues for TSO packets which use mss as per the new mtu configured. This patch fixes this issue by moving the mtu write after device quiesce. Cc: stable(a)vger.kernel.org Fixes: d1a890fa37f2 ("net: VMware virtual Ethernet NIC driver: vmxnet3") Signed-off-by: Ronak Doshi <ronak.doshi(a)broadcom.com> Acked-by: Guolin Yang <guolin.yang(a)broadcom.com> Changes v1-> v2: Moved MTU write after destroy of rx rings Link: https://patch.msgid.link/20250515190457.8597-1-ronak.doshi@broadcom.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 3df6aabc7e33..c676979c7ab9 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -3607,8 +3607,6 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) struct vmxnet3_adapter *adapter = netdev_priv(netdev); int err = 0; - WRITE_ONCE(netdev->mtu, new_mtu); - /* * Reset_work may be in the middle of resetting the device, wait for its * completion. @@ -3622,6 +3620,7 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) /* we need to re-create the rx queue based on the new mtu */ vmxnet3_rq_destroy_all(adapter); + WRITE_ONCE(netdev->mtu, new_mtu); vmxnet3_adjust_rx_ring_size(adapter); err = vmxnet3_rq_create_all(adapter); if (err) { @@ -3638,6 +3637,8 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) "Closing it\n", err); goto out; } + } else { + WRITE_ONCE(netdev->mtu, new_mtu); } out:

2 weeks

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FAILED: patch "[PATCH] vmxnet3: update MTU after device quiesce" 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 43f0999af011fba646e015f0bb08b6c3002a0170 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052425-willed-landline-ff5b@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 43f0999af011fba646e015f0bb08b6c3002a0170 Mon Sep 17 00:00:00 2001 From: Ronak Doshi <ronak.doshi(a)broadcom.com> Date: Thu, 15 May 2025 19:04:56 +0000 Subject: [PATCH] vmxnet3: update MTU after device quiesce Currently, when device mtu is updated, vmxnet3 updates netdev mtu, quiesces the device and then reactivates it for the ESXi to know about the new mtu. So, technically the OS stack can start using the new mtu before ESXi knows about the new mtu. This can lead to issues for TSO packets which use mss as per the new mtu configured. This patch fixes this issue by moving the mtu write after device quiesce. Cc: stable(a)vger.kernel.org Fixes: d1a890fa37f2 ("net: VMware virtual Ethernet NIC driver: vmxnet3") Signed-off-by: Ronak Doshi <ronak.doshi(a)broadcom.com> Acked-by: Guolin Yang <guolin.yang(a)broadcom.com> Changes v1-> v2: Moved MTU write after destroy of rx rings Link: https://patch.msgid.link/20250515190457.8597-1-ronak.doshi@broadcom.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 3df6aabc7e33..c676979c7ab9 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -3607,8 +3607,6 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) struct vmxnet3_adapter *adapter = netdev_priv(netdev); int err = 0; - WRITE_ONCE(netdev->mtu, new_mtu); - /* * Reset_work may be in the middle of resetting the device, wait for its * completion. @@ -3622,6 +3620,7 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) /* we need to re-create the rx queue based on the new mtu */ vmxnet3_rq_destroy_all(adapter); + WRITE_ONCE(netdev->mtu, new_mtu); vmxnet3_adjust_rx_ring_size(adapter); err = vmxnet3_rq_create_all(adapter); if (err) { @@ -3638,6 +3637,8 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) "Closing it\n", err); goto out; } + } else { + WRITE_ONCE(netdev->mtu, new_mtu); } out:

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FAILED: patch "[PATCH] vmxnet3: update MTU after device quiesce" 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 43f0999af011fba646e015f0bb08b6c3002a0170 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052425-posture-finlike-af9b@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 43f0999af011fba646e015f0bb08b6c3002a0170 Mon Sep 17 00:00:00 2001 From: Ronak Doshi <ronak.doshi(a)broadcom.com> Date: Thu, 15 May 2025 19:04:56 +0000 Subject: [PATCH] vmxnet3: update MTU after device quiesce Currently, when device mtu is updated, vmxnet3 updates netdev mtu, quiesces the device and then reactivates it for the ESXi to know about the new mtu. So, technically the OS stack can start using the new mtu before ESXi knows about the new mtu. This can lead to issues for TSO packets which use mss as per the new mtu configured. This patch fixes this issue by moving the mtu write after device quiesce. Cc: stable(a)vger.kernel.org Fixes: d1a890fa37f2 ("net: VMware virtual Ethernet NIC driver: vmxnet3") Signed-off-by: Ronak Doshi <ronak.doshi(a)broadcom.com> Acked-by: Guolin Yang <guolin.yang(a)broadcom.com> Changes v1-> v2: Moved MTU write after destroy of rx rings Link: https://patch.msgid.link/20250515190457.8597-1-ronak.doshi@broadcom.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 3df6aabc7e33..c676979c7ab9 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -3607,8 +3607,6 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) struct vmxnet3_adapter *adapter = netdev_priv(netdev); int err = 0; - WRITE_ONCE(netdev->mtu, new_mtu); - /* * Reset_work may be in the middle of resetting the device, wait for its * completion. @@ -3622,6 +3620,7 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) /* we need to re-create the rx queue based on the new mtu */ vmxnet3_rq_destroy_all(adapter); + WRITE_ONCE(netdev->mtu, new_mtu); vmxnet3_adjust_rx_ring_size(adapter); err = vmxnet3_rq_create_all(adapter); if (err) { @@ -3638,6 +3637,8 @@ vmxnet3_change_mtu(struct net_device *netdev, int new_mtu) "Closing it\n", err); goto out; } + } else { + WRITE_ONCE(netdev->mtu, new_mtu); } out:

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