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FAILED: patch "[PATCH] mptcp: disable add_addr retransmission when timeout is 0" 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 f5ce0714623cffd00bf2a83e890d09c609b7f50a # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082242-enrage-armoire-a4f8@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From f5ce0714623cffd00bf2a83e890d09c609b7f50a Mon Sep 17 00:00:00 2001 From: Geliang Tang <geliang(a)kernel.org> Date: Fri, 15 Aug 2025 19:28:23 +0200 Subject: [PATCH] mptcp: disable add_addr retransmission when timeout is 0 When add_addr_timeout was set to 0, this caused the ADD_ADDR to be retransmitted immediately, which looks like a buggy behaviour. Instead, interpret 0 as "no retransmissions needed". The documentation is updated to explicitly state that setting the timeout to 0 disables retransmission. Fixes: 93f323b9cccc ("mptcp: add a new sysctl add_addr_timeout") Cc: stable(a)vger.kernel.org Suggested-by: Matthieu Baerts <matttbe(a)kernel.org> Signed-off-by: Geliang Tang <tanggeliang(a)kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-5-521fe9… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/Documentation/networking/mptcp-sysctl.rst b/Documentation/networking/mptcp-sysctl.rst index 5bfab01eff5a..1683c139821e 100644 --- a/Documentation/networking/mptcp-sysctl.rst +++ b/Documentation/networking/mptcp-sysctl.rst @@ -12,6 +12,8 @@ add_addr_timeout - INTEGER (seconds) resent to an MPTCP peer that has not acknowledged a previous ADD_ADDR message. + Do not retransmit if set to 0. + The default value matches TCP_RTO_MAX. This is a per-namespace sysctl. diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index c5f6a53ce5f1..136a380602ca 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -274,6 +274,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer) add_timer); struct mptcp_sock *msk = entry->sock; struct sock *sk = (struct sock *)msk; + unsigned int timeout; pr_debug("msk=%p\n", msk); @@ -291,6 +292,10 @@ static void mptcp_pm_add_timer(struct timer_list *timer) goto out; } + timeout = mptcp_get_add_addr_timeout(sock_net(sk)); + if (!timeout) + goto out; + spin_lock_bh(&msk->pm.lock); if (!mptcp_pm_should_add_signal_addr(msk)) { @@ -302,7 +307,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer) if (entry->retrans_times < ADD_ADDR_RETRANS_MAX) sk_reset_timer(sk, timer, - jiffies + mptcp_get_add_addr_timeout(sock_net(sk))); + jiffies + timeout); spin_unlock_bh(&msk->pm.lock); @@ -344,6 +349,7 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, struct mptcp_pm_add_entry *add_entry = NULL; struct sock *sk = (struct sock *)msk; struct net *net = sock_net(sk); + unsigned int timeout; lockdep_assert_held(&msk->pm.lock); @@ -368,8 +374,9 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, timer_setup(&add_entry->add_timer, mptcp_pm_add_timer, 0); reset_timer: - sk_reset_timer(sk, &add_entry->add_timer, - jiffies + mptcp_get_add_addr_timeout(net)); + timeout = mptcp_get_add_addr_timeout(net); + if (timeout) + sk_reset_timer(sk, &add_entry->add_timer, jiffies + timeout); return true; }

2 days, 6 hours

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[PATCH v2] Revert "arm64: dts: lx2160a: add pinmux and i2c gpio to support bus recovery"

by Josua Mayer

This reverts commit 8a1365c7bbc122bd843096f0008d259e7a8afc61. The commit in questions most notably breaks SD-Card on SolidRun LX2162A Clearfog by corrupting the pinmux in dynamic configuration area for non-i2c pins without pinmux node. It is further expected that it breaks SD Card-Detect, as well as CAN, DSPI and GPIOs on any board based on LX2160 SoC. Background: The LX2160 SoC is configured at power-on from RCW (Reset Configuration Word) typically located in the first 4k of boot media. This blob configures various clock rates and pin functions. The pinmux for i2c specifically is part of configuration words RCWSR12, RCWSR13 and RCWSR14 size 32 bit each. These values are accessible at read-only addresses 0x01e0012c following. For runtime (re-)configuration the SoC has a dynamic configuration area where alternative settings can be applied. The counterparts of RCWSR[12-14] can be overridden at 0x70010012c following. The commit in question used this area to switch i2c pins between i2c and gpio function at runtime using the pinctrl-single driver - which reads a 32-bit value, makes particular changes by bitmask and writes back the new value. SolidRun have observed that if the dynamic configuration is read first (before a write), it reads as zero regardless the initial values set by RCW. After the first write consecutive reads reflect the written value. Because multiple pins are configured from a single 32-bit value, this causes unintentional change of all bits (except those for i2c) being set to zero when the pinctrl driver applies the first configuration. See below a short list of which functions RCWSR12 alone controls: LX2162-CF RCWSR12: 0b0000100000000000 0000000000000110 IIC2_PMUX ||| ||| || | ||| |||XXX : I2C/GPIO/CD-WP IIC3_PMUX ||| ||| || | ||| XXX : I2C/GPIO/CAN/EVT IIC4_PMUX ||| ||| || | |||XXX||| : I2C/GPIO/CAN/EVT IIC5_PMUX ||| ||| || | XXX ||| : I2C/GPIO/SDHC-CLK IIC6_PMUX ||| ||| || |XXX||| ||| : I2C/GPIO/SDHC-CLK XSPI1_A_DATA74_PMUX ||| ||| XX X ||| ||| : XSPI/GPIO XSPI1_A_DATA30_PMUX ||| |||XXX|| | ||| ||| : XSPI/GPIO XSPI1_A_BASE_PMUX ||| XXX || | ||| ||| : XSPI/GPIO SDHC1_BASE_PMUX |||XXX||| || | ||| ||| : SDHC/GPIO/SPI SDHC1_DIR_PMUX XXX ||| || | ||| ||| : SDHC/GPIO/SPI RESERVED XX||| ||| || | ||| ||| : On LX2162A Clearfog the initial (ant intended) value is 0x08000006 - enabling card-detect on IIC2_PMUX and some LEDs on SDHC1_DIR_PMUX. Everything else is intentional zero (enabling I2C & XSPI). By reading zero from dynamic configuration area, the commit in question changes IIC2_PMUX to value 0 (I2C function), and SDHC1_DIR_PMUX to 0 (SDHC data direction function) - breaking card-detect and led gpios. This issue should affect any board based on LX2160 SoC that is using the same or earlier versions of NXP bootloader as SolidRun have tested, in particular: LSDK-21.08 and LS-5.15.71-2.2.0. Whether NXP added some extra initialisation in the bootloader on later releases was not investigated. However bootloader upgrade should not be necessary to run a newer Linux kernel. To work around this issue it is possible to explicitly define ALL pins controlled by any 32-bit value so that gradually after processing all pinctrl nodes the correct value is reached on all bits. This is a large task that should be done carefully on a per-board basis and not globally through the SoC dtsi. Therefore the commit in question is reverted. Fixes: 8a1365c7bbc1 ("arm64: dts: lx2160a: add pinmux and i2c gpio to support bus recovery") Cc: stable(a)vger.kernel.org Signed-off-by: Josua Mayer <josua(a)solid-run.com> --- Changes in v2: - changed to revert problematic commit, workaround is large effort - Link to v1: https://lore.kernel.org/r/f32c5525-3162-4acd-880c-99fc46d3a63d@solid-run.com --- arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 106 ------------------------- 1 file changed, 106 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi index c9541403bcd8..eb1b4e607e2b 100644 --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi @@ -749,10 +749,6 @@ i2c0: i2c@2000000 { clock-names = "ipg"; clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(16)>; - pinctrl-names = "default", "gpio"; - pinctrl-0 = <&i2c0_scl>; - pinctrl-1 = <&i2c0_scl_gpio>; - scl-gpios = <&gpio0 3 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; status = "disabled"; }; @@ -765,10 +761,6 @@ i2c1: i2c@2010000 { clock-names = "ipg"; clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(16)>; - pinctrl-names = "default", "gpio"; - pinctrl-0 = <&i2c1_scl>; - pinctrl-1 = <&i2c1_scl_gpio>; - scl-gpios = <&gpio0 31 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; status = "disabled"; }; @@ -781,10 +773,6 @@ i2c2: i2c@2020000 { clock-names = "ipg"; clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(16)>; - pinctrl-names = "default", "gpio"; - pinctrl-0 = <&i2c2_scl>; - pinctrl-1 = <&i2c2_scl_gpio>; - scl-gpios = <&gpio0 29 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; status = "disabled"; }; @@ -797,10 +785,6 @@ i2c3: i2c@2030000 { clock-names = "ipg"; clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(16)>; - pinctrl-names = "default", "gpio"; - pinctrl-0 = <&i2c3_scl>; - pinctrl-1 = <&i2c3_scl_gpio>; - scl-gpios = <&gpio0 27 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; status = "disabled"; }; @@ -813,10 +797,6 @@ i2c4: i2c@2040000 { clock-names = "ipg"; clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(16)>; - pinctrl-names = "default", "gpio"; - pinctrl-0 = <&i2c4_scl>; - pinctrl-1 = <&i2c4_scl_gpio>; - scl-gpios = <&gpio0 25 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; status = "disabled"; }; @@ -829,10 +809,6 @@ i2c5: i2c@2050000 { clock-names = "ipg"; clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(16)>; - pinctrl-names = "default", "gpio"; - pinctrl-0 = <&i2c5_scl>; - pinctrl-1 = <&i2c5_scl_gpio>; - scl-gpios = <&gpio0 23 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; status = "disabled"; }; @@ -845,10 +821,6 @@ i2c6: i2c@2060000 { clock-names = "ipg"; clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(16)>; - pinctrl-names = "default", "gpio"; - pinctrl-0 = <&i2c6_scl>; - pinctrl-1 = <&i2c6_scl_gpio>; - scl-gpios = <&gpio1 16 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; status = "disabled"; }; @@ -861,10 +833,6 @@ i2c7: i2c@2070000 { clock-names = "ipg"; clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL QORIQ_CLK_PLL_DIV(16)>; - pinctrl-names = "default", "gpio"; - pinctrl-0 = <&i2c7_scl>; - pinctrl-1 = <&i2c7_scl_gpio>; - scl-gpios = <&gpio1 18 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; status = "disabled"; }; @@ -1700,80 +1668,6 @@ pcs18: ethernet-phy@0 { }; }; - pinmux_i2crv: pinmux@70010012c { - compatible = "pinctrl-single"; - reg = <0x00000007 0x0010012c 0x0 0xc>; - #address-cells = <1>; - #size-cells = <0>; - pinctrl-single,bit-per-mux; - pinctrl-single,register-width = <32>; - pinctrl-single,function-mask = <0x7>; - - i2c1_scl: i2c1-scl-pins { - pinctrl-single,bits = <0x0 0 0x7>; - }; - - i2c1_scl_gpio: i2c1-scl-gpio-pins { - pinctrl-single,bits = <0x0 0x1 0x7>; - }; - - i2c2_scl: i2c2-scl-pins { - pinctrl-single,bits = <0x0 0 (0x7 << 3)>; - }; - - i2c2_scl_gpio: i2c2-scl-gpio-pins { - pinctrl-single,bits = <0x0 (0x1 << 3) (0x7 << 3)>; - }; - - i2c3_scl: i2c3-scl-pins { - pinctrl-single,bits = <0x0 0 (0x7 << 6)>; - }; - - i2c3_scl_gpio: i2c3-scl-gpio-pins { - pinctrl-single,bits = <0x0 (0x1 << 6) (0x7 << 6)>; - }; - - i2c4_scl: i2c4-scl-pins { - pinctrl-single,bits = <0x0 0 (0x7 << 9)>; - }; - - i2c4_scl_gpio: i2c4-scl-gpio-pins { - pinctrl-single,bits = <0x0 (0x1 << 9) (0x7 << 9)>; - }; - - i2c5_scl: i2c5-scl-pins { - pinctrl-single,bits = <0x0 0 (0x7 << 12)>; - }; - - i2c5_scl_gpio: i2c5-scl-gpio-pins { - pinctrl-single,bits = <0x0 (0x1 << 12) (0x7 << 12)>; - }; - - i2c6_scl: i2c6-scl-pins { - pinctrl-single,bits = <0x4 0x2 0x7>; - }; - - i2c6_scl_gpio: i2c6-scl-gpio-pins { - pinctrl-single,bits = <0x4 0x1 0x7>; - }; - - i2c7_scl: i2c7-scl-pins { - pinctrl-single,bits = <0x4 0x2 0x7>; - }; - - i2c7_scl_gpio: i2c7-scl-gpio-pins { - pinctrl-single,bits = <0x4 0x1 0x7>; - }; - - i2c0_scl: i2c0-scl-pins { - pinctrl-single,bits = <0x8 0 (0x7 << 10)>; - }; - - i2c0_scl_gpio: i2c0-scl-gpio-pins { - pinctrl-single,bits = <0x8 (0x1 << 10) (0x7 << 10)>; - }; - }; - fsl_mc: fsl-mc@80c000000 { compatible = "fsl,qoriq-mc"; reg = <0x00000008 0x0c000000 0 0x40>, --- base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 change-id: 20250710-lx2160-sd-cd-00bf38ae169e Best regards, -- Josua Mayer <josua(a)solid-run.com>

2 days, 6 hours

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FAILED: patch "[PATCH] mmc: sdhci_am654: Disable HS400 for AM62P SR1.0 and SR1.1" failed to apply to 6.12-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.12-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-6.12.y git checkout FETCH_HEAD git cherry-pick -x d2d7a96b29ea6ab093973a1a37d26126db70c79f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082207-defog-stunned-9396@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From d2d7a96b29ea6ab093973a1a37d26126db70c79f Mon Sep 17 00:00:00 2001 From: Judith Mendez <jm(a)ti.com> Date: Wed, 20 Aug 2025 14:30:47 -0500 Subject: [PATCH] mmc: sdhci_am654: Disable HS400 for AM62P SR1.0 and SR1.1 This adds SDHCI_AM654_QUIRK_DISABLE_HS400 quirk which shall be used to disable HS400 support. AM62P SR1.0 and SR1.1 do not support HS400 due to errata i2458 [0] so disable HS400 for these SoC revisions. [0] https://www.ti.com/lit/er/sprz574a/sprz574a.pdf Fixes: 37f28165518f ("arm64: dts: ti: k3-am62p: Add ITAP/OTAP values for MMC") Cc: stable(a)vger.kernel.org Signed-off-by: Judith Mendez <jm(a)ti.com> Reviewed-by: Andrew Davis <afd(a)ti.com> Acked-by: Adrian Hunter <adrian.hunter(a)intel.com> Link: https://lore.kernel.org/r/20250820193047.4064142-1-jm@ti.com Signed-off-by: Ulf Hansson <ulf.hansson(a)linaro.org> diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c index e4fc345be7e5..17e62c61b6e6 100644 --- a/drivers/mmc/host/sdhci_am654.c +++ b/drivers/mmc/host/sdhci_am654.c @@ -156,6 +156,7 @@ struct sdhci_am654_data { #define SDHCI_AM654_QUIRK_FORCE_CDTEST BIT(0) #define SDHCI_AM654_QUIRK_SUPPRESS_V1P8_ENA BIT(1) +#define SDHCI_AM654_QUIRK_DISABLE_HS400 BIT(2) }; struct window { @@ -765,6 +766,7 @@ static int sdhci_am654_init(struct sdhci_host *host) { struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct sdhci_am654_data *sdhci_am654 = sdhci_pltfm_priv(pltfm_host); + struct device *dev = mmc_dev(host->mmc); u32 ctl_cfg_2 = 0; u32 mask; u32 val; @@ -820,6 +822,12 @@ static int sdhci_am654_init(struct sdhci_host *host) if (ret) goto err_cleanup_host; + if (sdhci_am654->quirks & SDHCI_AM654_QUIRK_DISABLE_HS400 && + host->mmc->caps2 & (MMC_CAP2_HS400 | MMC_CAP2_HS400_ES)) { + dev_info(dev, "HS400 mode not supported on this silicon revision, disabling it\n"); + host->mmc->caps2 &= ~(MMC_CAP2_HS400 | MMC_CAP2_HS400_ES); + } + ret = __sdhci_add_host(host); if (ret) goto err_cleanup_host; @@ -883,6 +891,12 @@ static int sdhci_am654_get_of_property(struct platform_device *pdev, return 0; } +static const struct soc_device_attribute sdhci_am654_descope_hs400[] = { + { .family = "AM62PX", .revision = "SR1.0" }, + { .family = "AM62PX", .revision = "SR1.1" }, + { /* sentinel */ } +}; + static const struct of_device_id sdhci_am654_of_match[] = { { .compatible = "ti,am654-sdhci-5.1", @@ -970,6 +984,10 @@ static int sdhci_am654_probe(struct platform_device *pdev) if (ret) return dev_err_probe(dev, ret, "parsing dt failed\n"); + soc = soc_device_match(sdhci_am654_descope_hs400); + if (soc) + sdhci_am654->quirks |= SDHCI_AM654_QUIRK_DISABLE_HS400; + host->mmc_host_ops.start_signal_voltage_switch = sdhci_am654_start_signal_voltage_switch; host->mmc_host_ops.execute_tuning = sdhci_am654_execute_tuning;

2 days, 6 hours

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FAILED: patch "[PATCH] mptcp: disable add_addr retransmission when timeout is 0" 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 f5ce0714623cffd00bf2a83e890d09c609b7f50a # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082242-rickety-degree-c696@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From f5ce0714623cffd00bf2a83e890d09c609b7f50a Mon Sep 17 00:00:00 2001 From: Geliang Tang <geliang(a)kernel.org> Date: Fri, 15 Aug 2025 19:28:23 +0200 Subject: [PATCH] mptcp: disable add_addr retransmission when timeout is 0 When add_addr_timeout was set to 0, this caused the ADD_ADDR to be retransmitted immediately, which looks like a buggy behaviour. Instead, interpret 0 as "no retransmissions needed". The documentation is updated to explicitly state that setting the timeout to 0 disables retransmission. Fixes: 93f323b9cccc ("mptcp: add a new sysctl add_addr_timeout") Cc: stable(a)vger.kernel.org Suggested-by: Matthieu Baerts <matttbe(a)kernel.org> Signed-off-by: Geliang Tang <tanggeliang(a)kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-5-521fe9… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/Documentation/networking/mptcp-sysctl.rst b/Documentation/networking/mptcp-sysctl.rst index 5bfab01eff5a..1683c139821e 100644 --- a/Documentation/networking/mptcp-sysctl.rst +++ b/Documentation/networking/mptcp-sysctl.rst @@ -12,6 +12,8 @@ add_addr_timeout - INTEGER (seconds) resent to an MPTCP peer that has not acknowledged a previous ADD_ADDR message. + Do not retransmit if set to 0. + The default value matches TCP_RTO_MAX. This is a per-namespace sysctl. diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index c5f6a53ce5f1..136a380602ca 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -274,6 +274,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer) add_timer); struct mptcp_sock *msk = entry->sock; struct sock *sk = (struct sock *)msk; + unsigned int timeout; pr_debug("msk=%p\n", msk); @@ -291,6 +292,10 @@ static void mptcp_pm_add_timer(struct timer_list *timer) goto out; } + timeout = mptcp_get_add_addr_timeout(sock_net(sk)); + if (!timeout) + goto out; + spin_lock_bh(&msk->pm.lock); if (!mptcp_pm_should_add_signal_addr(msk)) { @@ -302,7 +307,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer) if (entry->retrans_times < ADD_ADDR_RETRANS_MAX) sk_reset_timer(sk, timer, - jiffies + mptcp_get_add_addr_timeout(sock_net(sk))); + jiffies + timeout); spin_unlock_bh(&msk->pm.lock); @@ -344,6 +349,7 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, struct mptcp_pm_add_entry *add_entry = NULL; struct sock *sk = (struct sock *)msk; struct net *net = sock_net(sk); + unsigned int timeout; lockdep_assert_held(&msk->pm.lock); @@ -368,8 +374,9 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, timer_setup(&add_entry->add_timer, mptcp_pm_add_timer, 0); reset_timer: - sk_reset_timer(sk, &add_entry->add_timer, - jiffies + mptcp_get_add_addr_timeout(net)); + timeout = mptcp_get_add_addr_timeout(net); + if (timeout) + sk_reset_timer(sk, &add_entry->add_timer, jiffies + timeout); return true; }

2 days, 7 hours

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[PATCH v2 0/2] power: supply: bq27xxx: bug fixes

by H. Nikolaus Schaller

PATCH V2 2025-08-23 12:33:18: Changes: * improved commit description of main fix * new patch: adds a restriction of historical no-battery-detection logic to the bq27000 chip PATCH V1 2025-07-21 14:46:09: H. Nikolaus Schaller (2): power: supply: bq27xxx: fix error return in case of no bq27000 hdq battery power: supply: bq27xxx: restrict no-battery detection to bq27000 drivers/power/supply/bq27xxx_battery.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) -- 2.50.1

2 days, 7 hours

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FAILED: patch "[PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to" 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 a40c5d727b8111b5db424a1e43e14a1dcce1e77f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082152-monkhood-dig-c861@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a40c5d727b8111b5db424a1e43e14a1dcce1e77f Mon Sep 17 00:00:00 2001 From: Imre Deak <imre.deak(a)intel.com> Date: Thu, 5 Jun 2025 11:28:46 +0300 Subject: [PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reading DPCD registers has side-effects in general. In particular accessing registers outside of the link training register range (0x102-0x106, 0x202-0x207, 0x200c-0x200f, 0x2216) is explicitly forbidden by the DP v2.1 Standard, see 3.6.5.1 DPTX AUX Transaction Handling Mandates 3.6.7.4 128b/132b DP Link Layer LTTPR Link Training Mandates Based on my tests, accessing the DPCD_REV register during the link training of an UHBR TBT DP tunnel sink leads to link training failures. Solve the above by using the DP_LANE0_1_STATUS (0x202) register for the DPCD register access quirk. Cc: <stable(a)vger.kernel.org> Cc: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Cc: Jani Nikula <jani.nikula(a)linux.intel.com> Acked-by: Jani Nikula <jani.nikula(a)intel.com> Signed-off-by: Imre Deak <imre.deak(a)intel.com> Link: https://lore.kernel.org/r/20250605082850.65136-2-imre.deak@intel.com diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index f2a6559a2710..dc622c78db9d 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -725,7 +725,7 @@ ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset, * monitor doesn't power down exactly after the throw away read. */ if (!aux->is_remote) { - ret = drm_dp_dpcd_probe(aux, DP_DPCD_REV); + ret = drm_dp_dpcd_probe(aux, DP_LANE0_1_STATUS); if (ret < 0) return ret; }

2 days, 7 hours

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FAILED: patch "[PATCH] mptcp: disable add_addr retransmission when timeout is 0" 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 f5ce0714623cffd00bf2a83e890d09c609b7f50a # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082241-diner-uncoated-a54e@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From f5ce0714623cffd00bf2a83e890d09c609b7f50a Mon Sep 17 00:00:00 2001 From: Geliang Tang <geliang(a)kernel.org> Date: Fri, 15 Aug 2025 19:28:23 +0200 Subject: [PATCH] mptcp: disable add_addr retransmission when timeout is 0 When add_addr_timeout was set to 0, this caused the ADD_ADDR to be retransmitted immediately, which looks like a buggy behaviour. Instead, interpret 0 as "no retransmissions needed". The documentation is updated to explicitly state that setting the timeout to 0 disables retransmission. Fixes: 93f323b9cccc ("mptcp: add a new sysctl add_addr_timeout") Cc: stable(a)vger.kernel.org Suggested-by: Matthieu Baerts <matttbe(a)kernel.org> Signed-off-by: Geliang Tang <tanggeliang(a)kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-5-521fe9… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/Documentation/networking/mptcp-sysctl.rst b/Documentation/networking/mptcp-sysctl.rst index 5bfab01eff5a..1683c139821e 100644 --- a/Documentation/networking/mptcp-sysctl.rst +++ b/Documentation/networking/mptcp-sysctl.rst @@ -12,6 +12,8 @@ add_addr_timeout - INTEGER (seconds) resent to an MPTCP peer that has not acknowledged a previous ADD_ADDR message. + Do not retransmit if set to 0. + The default value matches TCP_RTO_MAX. This is a per-namespace sysctl. diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index c5f6a53ce5f1..136a380602ca 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -274,6 +274,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer) add_timer); struct mptcp_sock *msk = entry->sock; struct sock *sk = (struct sock *)msk; + unsigned int timeout; pr_debug("msk=%p\n", msk); @@ -291,6 +292,10 @@ static void mptcp_pm_add_timer(struct timer_list *timer) goto out; } + timeout = mptcp_get_add_addr_timeout(sock_net(sk)); + if (!timeout) + goto out; + spin_lock_bh(&msk->pm.lock); if (!mptcp_pm_should_add_signal_addr(msk)) { @@ -302,7 +307,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer) if (entry->retrans_times < ADD_ADDR_RETRANS_MAX) sk_reset_timer(sk, timer, - jiffies + mptcp_get_add_addr_timeout(sock_net(sk))); + jiffies + timeout); spin_unlock_bh(&msk->pm.lock); @@ -344,6 +349,7 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, struct mptcp_pm_add_entry *add_entry = NULL; struct sock *sk = (struct sock *)msk; struct net *net = sock_net(sk); + unsigned int timeout; lockdep_assert_held(&msk->pm.lock); @@ -368,8 +374,9 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, timer_setup(&add_entry->add_timer, mptcp_pm_add_timer, 0); reset_timer: - sk_reset_timer(sk, &add_entry->add_timer, - jiffies + mptcp_get_add_addr_timeout(net)); + timeout = mptcp_get_add_addr_timeout(net); + if (timeout) + sk_reset_timer(sk, &add_entry->add_timer, jiffies + timeout); return true; }

2 days, 7 hours

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[PATCH v2] media: vidtv: initialize local pointers upon transfer of memory ownership

by Jeongjun Park

vidtv_channel_si_init() creates a temporary list (program, service, event) and ownership of the memory itself is transferred to the PAT/SDT/EIT tables through vidtv_psi_pat_program_assign(), vidtv_psi_sdt_service_assign(), vidtv_psi_eit_event_assign(). The problem here is that the local pointer where the memory ownership transfer was completed is not initialized to NULL. This causes the vidtv_psi_pmt_create_sec_for_each_pat_entry() function to fail, and in the flow that jumps to free_eit, the memory that was freed by vidtv_psi_*_table_destroy() can be accessed again by vidtv_psi_*_event_destroy() due to the uninitialized local pointer, so it is freed once again. Therefore, to prevent use-after-free and double-free vuln, local pointers must be initialized to NULL when transferring memory ownership. Cc: <stable(a)vger.kernel.org> Reported-by: syzbot+1d9c0edea5907af239e0(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=1d9c0edea5907af239e0 Fixes: 3be8037960bc ("media: vidtv: add error checks") Signed-off-by: Jeongjun Park <aha310510(a)gmail.com> --- v2: Improved patch description wording and CC stable mailing list - Link to v1: https://lore.kernel.org/all/20250822065849.1145572-1-aha310510@gmail.com/ --- drivers/media/test-drivers/vidtv/vidtv_channel.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/test-drivers/vidtv/vidtv_channel.c b/drivers/media/test-drivers/vidtv/vidtv_channel.c index f3023e91b3eb..3541155c6fc6 100644 --- a/drivers/media/test-drivers/vidtv/vidtv_channel.c +++ b/drivers/media/test-drivers/vidtv/vidtv_channel.c @@ -461,12 +461,15 @@ int vidtv_channel_si_init(struct vidtv_mux *m) /* assemble all programs and assign to PAT */ vidtv_psi_pat_program_assign(m->si.pat, programs); + programs = NULL; /* assemble all services and assign to SDT */ vidtv_psi_sdt_service_assign(m->si.sdt, services); + services = NULL; /* assemble all events and assign to EIT */ vidtv_psi_eit_event_assign(m->si.eit, events); + events = NULL; m->si.pmt_secs = vidtv_psi_pmt_create_sec_for_each_pat_entry(m->si.pat, m->pcr_pid); --

2 days, 7 hours

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FAILED: patch "[PATCH] mmc: sdhci-pci-gli: Add a new function to simplify the code" 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 dec8b38be4b35cae5f7fa086daf2631e2cfa09c1 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082238-portal-perfectly-7a53@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From dec8b38be4b35cae5f7fa086daf2631e2cfa09c1 Mon Sep 17 00:00:00 2001 From: Victor Shih <victor.shih(a)genesyslogic.com.tw> Date: Thu, 31 Jul 2025 14:57:50 +0800 Subject: [PATCH] mmc: sdhci-pci-gli: Add a new function to simplify the code In preparation to fix replay timer timeout, add sdhci_gli_mask_replay_timer_timeout() function to simplify some of the code, allowing it to be re-used. Signed-off-by: Victor Shih <victor.shih(a)genesyslogic.com.tw> Fixes: 1ae1d2d6e555 ("mmc: sdhci-pci-gli: Add Genesys Logic GL9763E support") Cc: stable(a)vger.kernel.org Acked-by: Adrian Hunter <adrian.hunter(a)intel.com> Link: https://lore.kernel.org/r/20250731065752.450231-2-victorshihgli@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson(a)linaro.org> diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c index 4c2ae71770f7..f678c91f8d3e 100644 --- a/drivers/mmc/host/sdhci-pci-gli.c +++ b/drivers/mmc/host/sdhci-pci-gli.c @@ -287,6 +287,20 @@ #define GLI_MAX_TUNING_LOOP 40 /* Genesys Logic chipset */ +static void sdhci_gli_mask_replay_timer_timeout(struct pci_dev *pdev) +{ + int aer; + u32 value; + + /* mask the replay timer timeout of AER */ + aer = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR); + if (aer) { + pci_read_config_dword(pdev, aer + PCI_ERR_COR_MASK, &value); + value |= PCI_ERR_COR_REP_TIMER; + pci_write_config_dword(pdev, aer + PCI_ERR_COR_MASK, value); + } +} + static inline void gl9750_wt_on(struct sdhci_host *host) { u32 wt_value; @@ -607,7 +621,6 @@ static void gl9750_hw_setting(struct sdhci_host *host) { struct sdhci_pci_slot *slot = sdhci_priv(host); struct pci_dev *pdev; - int aer; u32 value; pdev = slot->chip->pdev; @@ -626,12 +639,7 @@ static void gl9750_hw_setting(struct sdhci_host *host) pci_set_power_state(pdev, PCI_D0); /* mask the replay timer timeout of AER */ - aer = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR); - if (aer) { - pci_read_config_dword(pdev, aer + PCI_ERR_COR_MASK, &value); - value |= PCI_ERR_COR_REP_TIMER; - pci_write_config_dword(pdev, aer + PCI_ERR_COR_MASK, value); - } + sdhci_gli_mask_replay_timer_timeout(pdev); gl9750_wt_off(host); } @@ -806,7 +814,6 @@ static void sdhci_gl9755_set_clock(struct sdhci_host *host, unsigned int clock) static void gl9755_hw_setting(struct sdhci_pci_slot *slot) { struct pci_dev *pdev = slot->chip->pdev; - int aer; u32 value; gl9755_wt_on(pdev); @@ -841,12 +848,7 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot) pci_set_power_state(pdev, PCI_D0); /* mask the replay timer timeout of AER */ - aer = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR); - if (aer) { - pci_read_config_dword(pdev, aer + PCI_ERR_COR_MASK, &value); - value |= PCI_ERR_COR_REP_TIMER; - pci_write_config_dword(pdev, aer + PCI_ERR_COR_MASK, value); - } + sdhci_gli_mask_replay_timer_timeout(pdev); gl9755_wt_off(pdev); }

2 days, 7 hours

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FAILED: patch "[PATCH] mptcp: disable add_addr retransmission when timeout is 0" failed to apply to 6.12-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.12-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-6.12.y git checkout FETCH_HEAD git cherry-pick -x f5ce0714623cffd00bf2a83e890d09c609b7f50a # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082241-oxidant-avoid-0017@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From f5ce0714623cffd00bf2a83e890d09c609b7f50a Mon Sep 17 00:00:00 2001 From: Geliang Tang <geliang(a)kernel.org> Date: Fri, 15 Aug 2025 19:28:23 +0200 Subject: [PATCH] mptcp: disable add_addr retransmission when timeout is 0 When add_addr_timeout was set to 0, this caused the ADD_ADDR to be retransmitted immediately, which looks like a buggy behaviour. Instead, interpret 0 as "no retransmissions needed". The documentation is updated to explicitly state that setting the timeout to 0 disables retransmission. Fixes: 93f323b9cccc ("mptcp: add a new sysctl add_addr_timeout") Cc: stable(a)vger.kernel.org Suggested-by: Matthieu Baerts <matttbe(a)kernel.org> Signed-off-by: Geliang Tang <tanggeliang(a)kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-5-521fe9… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/Documentation/networking/mptcp-sysctl.rst b/Documentation/networking/mptcp-sysctl.rst index 5bfab01eff5a..1683c139821e 100644 --- a/Documentation/networking/mptcp-sysctl.rst +++ b/Documentation/networking/mptcp-sysctl.rst @@ -12,6 +12,8 @@ add_addr_timeout - INTEGER (seconds) resent to an MPTCP peer that has not acknowledged a previous ADD_ADDR message. + Do not retransmit if set to 0. + The default value matches TCP_RTO_MAX. This is a per-namespace sysctl. diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index c5f6a53ce5f1..136a380602ca 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -274,6 +274,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer) add_timer); struct mptcp_sock *msk = entry->sock; struct sock *sk = (struct sock *)msk; + unsigned int timeout; pr_debug("msk=%p\n", msk); @@ -291,6 +292,10 @@ static void mptcp_pm_add_timer(struct timer_list *timer) goto out; } + timeout = mptcp_get_add_addr_timeout(sock_net(sk)); + if (!timeout) + goto out; + spin_lock_bh(&msk->pm.lock); if (!mptcp_pm_should_add_signal_addr(msk)) { @@ -302,7 +307,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer) if (entry->retrans_times < ADD_ADDR_RETRANS_MAX) sk_reset_timer(sk, timer, - jiffies + mptcp_get_add_addr_timeout(sock_net(sk))); + jiffies + timeout); spin_unlock_bh(&msk->pm.lock); @@ -344,6 +349,7 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, struct mptcp_pm_add_entry *add_entry = NULL; struct sock *sk = (struct sock *)msk; struct net *net = sock_net(sk); + unsigned int timeout; lockdep_assert_held(&msk->pm.lock); @@ -368,8 +374,9 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, timer_setup(&add_entry->add_timer, mptcp_pm_add_timer, 0); reset_timer: - sk_reset_timer(sk, &add_entry->add_timer, - jiffies + mptcp_get_add_addr_timeout(net)); + timeout = mptcp_get_add_addr_timeout(net); + if (timeout) + sk_reset_timer(sk, &add_entry->add_timer, jiffies + timeout); return true; }

2 days, 7 hours

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FAILED: patch "[PATCH] mptcp: remove duplicate sk_reset_timer call" 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 5d13349472ac8abcbcb94407969aa0fdc2e1f1be # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082229-perch-unusable-f355@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 5d13349472ac8abcbcb94407969aa0fdc2e1f1be Mon Sep 17 00:00:00 2001 From: Geliang Tang <geliang(a)kernel.org> Date: Fri, 15 Aug 2025 19:28:22 +0200 Subject: [PATCH] mptcp: remove duplicate sk_reset_timer call sk_reset_timer() was called twice in mptcp_pm_alloc_anno_list. Simplify the code by using a 'goto' statement to eliminate the duplication. Note that this is not a fix, but it will help backporting the following patch. The same "Fixes" tag has been added for this reason. Fixes: 93f323b9cccc ("mptcp: add a new sysctl add_addr_timeout") Cc: stable(a)vger.kernel.org Signed-off-by: Geliang Tang <tanggeliang(a)kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-4-521fe9… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 420d416e2603..c5f6a53ce5f1 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -353,9 +353,7 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, if (WARN_ON_ONCE(mptcp_pm_is_kernel(msk))) return false; - sk_reset_timer(sk, &add_entry->add_timer, - jiffies + mptcp_get_add_addr_timeout(net)); - return true; + goto reset_timer; } add_entry = kmalloc(sizeof(*add_entry), GFP_ATOMIC); @@ -369,6 +367,7 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, add_entry->retrans_times = 0; timer_setup(&add_entry->add_timer, mptcp_pm_add_timer, 0); +reset_timer: sk_reset_timer(sk, &add_entry->add_timer, jiffies + mptcp_get_add_addr_timeout(net));

2 days, 7 hours

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FAILED: patch "[PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to" 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 a40c5d727b8111b5db424a1e43e14a1dcce1e77f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082151-aftermost-fanatic-fb5f@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a40c5d727b8111b5db424a1e43e14a1dcce1e77f Mon Sep 17 00:00:00 2001 From: Imre Deak <imre.deak(a)intel.com> Date: Thu, 5 Jun 2025 11:28:46 +0300 Subject: [PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reading DPCD registers has side-effects in general. In particular accessing registers outside of the link training register range (0x102-0x106, 0x202-0x207, 0x200c-0x200f, 0x2216) is explicitly forbidden by the DP v2.1 Standard, see 3.6.5.1 DPTX AUX Transaction Handling Mandates 3.6.7.4 128b/132b DP Link Layer LTTPR Link Training Mandates Based on my tests, accessing the DPCD_REV register during the link training of an UHBR TBT DP tunnel sink leads to link training failures. Solve the above by using the DP_LANE0_1_STATUS (0x202) register for the DPCD register access quirk. Cc: <stable(a)vger.kernel.org> Cc: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Cc: Jani Nikula <jani.nikula(a)linux.intel.com> Acked-by: Jani Nikula <jani.nikula(a)intel.com> Signed-off-by: Imre Deak <imre.deak(a)intel.com> Link: https://lore.kernel.org/r/20250605082850.65136-2-imre.deak@intel.com diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index f2a6559a2710..dc622c78db9d 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -725,7 +725,7 @@ ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset, * monitor doesn't power down exactly after the throw away read. */ if (!aux->is_remote) { - ret = drm_dp_dpcd_probe(aux, DP_DPCD_REV); + ret = drm_dp_dpcd_probe(aux, DP_LANE0_1_STATUS); if (ret < 0) return ret; }

2 days, 7 hours

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Backporting Selftests to Stable Kernels?

by Brett Sheffield

Dear Stable Maintainers, When a bugfix is backported to stable kernels, should we be backporting the associated selftest(s)? eg. 9e30ecf23b1b ("net: ipv4: fix incorrect MTU in broadcast routes") was backported to stable, but the selftest was not: 5777d1871bf6 ("selftests: net: add test for variable PMTU in broadcast routes") Does stable policy say whether it should be? It does not fix a bug, per se, but it does enable those of us running stable kernel tests to more thoroughly test stable RCs. Should mainline authors be encouraged to mark related tests for backporting? Cheers, Brett

2 days, 7 hours

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FAILED: patch "[PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to" 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 a40c5d727b8111b5db424a1e43e14a1dcce1e77f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082151-chase-quilt-9ad4@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a40c5d727b8111b5db424a1e43e14a1dcce1e77f Mon Sep 17 00:00:00 2001 From: Imre Deak <imre.deak(a)intel.com> Date: Thu, 5 Jun 2025 11:28:46 +0300 Subject: [PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reading DPCD registers has side-effects in general. In particular accessing registers outside of the link training register range (0x102-0x106, 0x202-0x207, 0x200c-0x200f, 0x2216) is explicitly forbidden by the DP v2.1 Standard, see 3.6.5.1 DPTX AUX Transaction Handling Mandates 3.6.7.4 128b/132b DP Link Layer LTTPR Link Training Mandates Based on my tests, accessing the DPCD_REV register during the link training of an UHBR TBT DP tunnel sink leads to link training failures. Solve the above by using the DP_LANE0_1_STATUS (0x202) register for the DPCD register access quirk. Cc: <stable(a)vger.kernel.org> Cc: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Cc: Jani Nikula <jani.nikula(a)linux.intel.com> Acked-by: Jani Nikula <jani.nikula(a)intel.com> Signed-off-by: Imre Deak <imre.deak(a)intel.com> Link: https://lore.kernel.org/r/20250605082850.65136-2-imre.deak@intel.com diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index f2a6559a2710..dc622c78db9d 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -725,7 +725,7 @@ ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset, * monitor doesn't power down exactly after the throw away read. */ if (!aux->is_remote) { - ret = drm_dp_dpcd_probe(aux, DP_DPCD_REV); + ret = drm_dp_dpcd_probe(aux, DP_LANE0_1_STATUS); if (ret < 0) return ret; }

2 days, 8 hours

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FAILED: patch "[PATCH] mptcp: remove duplicate sk_reset_timer call" failed to apply to 6.12-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.12-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-6.12.y git checkout FETCH_HEAD git cherry-pick -x 5d13349472ac8abcbcb94407969aa0fdc2e1f1be # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082229-sly-caution-e57f@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 5d13349472ac8abcbcb94407969aa0fdc2e1f1be Mon Sep 17 00:00:00 2001 From: Geliang Tang <geliang(a)kernel.org> Date: Fri, 15 Aug 2025 19:28:22 +0200 Subject: [PATCH] mptcp: remove duplicate sk_reset_timer call sk_reset_timer() was called twice in mptcp_pm_alloc_anno_list. Simplify the code by using a 'goto' statement to eliminate the duplication. Note that this is not a fix, but it will help backporting the following patch. The same "Fixes" tag has been added for this reason. Fixes: 93f323b9cccc ("mptcp: add a new sysctl add_addr_timeout") Cc: stable(a)vger.kernel.org Signed-off-by: Geliang Tang <tanggeliang(a)kylinos.cn> Reviewed-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe(a)kernel.org> Link: https://patch.msgid.link/20250815-net-mptcp-misc-fixes-6-17-rc2-v1-4-521fe9… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 420d416e2603..c5f6a53ce5f1 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -353,9 +353,7 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, if (WARN_ON_ONCE(mptcp_pm_is_kernel(msk))) return false; - sk_reset_timer(sk, &add_entry->add_timer, - jiffies + mptcp_get_add_addr_timeout(net)); - return true; + goto reset_timer; } add_entry = kmalloc(sizeof(*add_entry), GFP_ATOMIC); @@ -369,6 +367,7 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk, add_entry->retrans_times = 0; timer_setup(&add_entry->add_timer, mptcp_pm_add_timer, 0); +reset_timer: sk_reset_timer(sk, &add_entry->add_timer, jiffies + mptcp_get_add_addr_timeout(net));

2 days, 8 hours

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FAILED: patch "[PATCH] iommu/virtio: Make instance lookup robust" failed to apply to 6.16-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.16-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-6.16.y git checkout FETCH_HEAD git cherry-pick -x 72b6f7cd89cea8251979b65528d302f9c0ed37bf # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082258-exert-mousy-2b51@gregkh' --subject-prefix 'PATCH 6.16.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 72b6f7cd89cea8251979b65528d302f9c0ed37bf Mon Sep 17 00:00:00 2001 From: Robin Murphy <robin.murphy(a)arm.com> Date: Thu, 14 Aug 2025 17:47:16 +0100 Subject: [PATCH] iommu/virtio: Make instance lookup robust Much like arm-smmu in commit 7d835134d4e1 ("iommu/arm-smmu: Make instance lookup robust"), virtio-iommu appears to have the same issue where iommu_device_register() makes the IOMMU instance visible to other API callers (including itself) straight away, but internally the instance isn't ready to recognise itself for viommu_probe_device() to work correctly until after viommu_probe() has returned. This matters a lot more now that bus_iommu_probe() has the DT/VIOT knowledge to probe client devices the way that was always intended. Tweak the lookup and initialisation in much the same way as for arm-smmu, to ensure that what we register is functional and ready to go. Cc: stable(a)vger.kernel.org Fixes: bcb81ac6ae3c ("iommu: Get DT/ACPI parsing into the proper probe path") Signed-off-by: Robin Murphy <robin.murphy(a)arm.com> Tested-by: Eric Auger <eric.auger(a)redhat.com> Link: https://lore.kernel.org/r/308911aaa1f5be32a3a709996c7bd6cf71d30f33.17551900… Signed-off-by: Joerg Roedel <joerg.roedel(a)amd.com> diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c index 532db1de201b..b39d6f134ab2 100644 --- a/drivers/iommu/virtio-iommu.c +++ b/drivers/iommu/virtio-iommu.c @@ -998,8 +998,7 @@ static void viommu_get_resv_regions(struct device *dev, struct list_head *head) iommu_dma_get_resv_regions(dev, head); } -static const struct iommu_ops viommu_ops; -static struct virtio_driver virtio_iommu_drv; +static const struct bus_type *virtio_bus_type; static int viommu_match_node(struct device *dev, const void *data) { @@ -1008,8 +1007,9 @@ static int viommu_match_node(struct device *dev, const void *data) static struct viommu_dev *viommu_get_by_fwnode(struct fwnode_handle *fwnode) { - struct device *dev = driver_find_device(&virtio_iommu_drv.driver, NULL, - fwnode, viommu_match_node); + struct device *dev = bus_find_device(virtio_bus_type, NULL, fwnode, + viommu_match_node); + put_device(dev); return dev ? dev_to_virtio(dev)->priv : NULL; @@ -1160,6 +1160,9 @@ static int viommu_probe(struct virtio_device *vdev) if (!viommu) return -ENOMEM; + /* Borrow this for easy lookups later */ + virtio_bus_type = dev->bus; + spin_lock_init(&viommu->request_lock); ida_init(&viommu->domain_ids); viommu->dev = dev; @@ -1229,10 +1232,10 @@ static int viommu_probe(struct virtio_device *vdev) if (ret) goto err_free_vqs; - iommu_device_register(&viommu->iommu, &viommu_ops, parent_dev); - vdev->priv = viommu; + iommu_device_register(&viommu->iommu, &viommu_ops, parent_dev); + dev_info(dev, "input address: %u bits\n", order_base_2(viommu->geometry.aperture_end)); dev_info(dev, "page mask: %#llx\n", viommu->pgsize_bitmap);

2 days, 8 hours

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FAILED: patch "[PATCH] cpuidle: governors: menu: Avoid selecting states with too" 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 779b1a1cb13ae17028aeddb2fbbdba97357a1e15 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082216-despair-postnasal-6dbe@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 779b1a1cb13ae17028aeddb2fbbdba97357a1e15 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> Date: Wed, 13 Aug 2025 12:25:58 +0200 Subject: [PATCH] cpuidle: governors: menu: Avoid selecting states with too much latency Occasionally, the exit latency of the idle state selected by the menu governor may exceed the PM QoS CPU wakeup latency limit. Namely, if the scheduler tick has been stopped already and predicted_ns is greater than the tick period length, the governor may return an idle state whose exit latency exceeds latency_req because that decision is made before checking the current idle state's exit latency. For instance, say that there are 3 idle states, 0, 1, and 2. For idle states 0 and 1, the exit latency is equal to the target residency and the values are 0 and 5 us, respectively. State 2 is deeper and has the exit latency and target residency of 200 us and 2 ms (which is greater than the tick period length), respectively. Say that predicted_ns is equal to TICK_NSEC and the PM QoS latency limit is 20 us. After the first two iterations of the main loop in menu_select(), idx becomes 1 and in the third iteration of it the target residency of the current state (state 2) is greater than predicted_ns. State 2 is not a polling one and predicted_ns is not less than TICK_NSEC, so the check on whether or not the tick has been stopped is done. Say that the tick has been stopped already and there are no imminent timers (that is, delta_tick is greater than the target residency of state 2). In that case, idx becomes 2 and it is returned immediately, but the exit latency of state 2 exceeds the latency limit. Address this issue by modifying the code to compare the exit latency of the current idle state (idle state i) with the latency limit before comparing its target residency with predicted_ns, which allows one more exit_latency_ns check that becomes redundant to be dropped. However, after the above change, latency_req cannot take the predicted_ns value any more, which takes place after commit 38f83090f515 ("cpuidle: menu: Remove iowait influence"), because it may cause a polling state to be returned prematurely. In the context of the previous example say that predicted_ns is 3000 and the PM QoS latency limit is still 20 us. Additionally, say that idle state 0 is a polling one. Moving the exit_latency_ns check before the target_residency_ns one causes the loop to terminate in the second iteration, before the target_residency_ns check, so idle state 0 will be returned even though previously state 1 would be returned if there were no imminent timers. For this reason, remove the assignment of the predicted_ns value to latency_req from the code. Fixes: 5ef499cd571c ("cpuidle: menu: Handle stopped tick more aggressively") Cc: 4.17+ <stable(a)vger.kernel.org> # 4.17+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Reviewed-by: Christian Loehle <christian.loehle(a)arm.com> Link: https://patch.msgid.link/5043159.31r3eYUQgx@rafael.j.wysocki diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index 81306612a5c6..b2e3d0b0a116 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -287,20 +287,15 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, return 0; } - if (tick_nohz_tick_stopped()) { - /* - * If the tick is already stopped, the cost of possible short - * idle duration misprediction is much higher, because the CPU - * may be stuck in a shallow idle state for a long time as a - * result of it. In that case say we might mispredict and use - * the known time till the closest timer event for the idle - * state selection. - */ - if (predicted_ns < TICK_NSEC) - predicted_ns = data->next_timer_ns; - } else if (latency_req > predicted_ns) { - latency_req = predicted_ns; - } + /* + * If the tick is already stopped, the cost of possible short idle + * duration misprediction is much higher, because the CPU may be stuck + * in a shallow idle state for a long time as a result of it. In that + * case, say we might mispredict and use the known time till the closest + * timer event for the idle state selection. + */ + if (tick_nohz_tick_stopped() && predicted_ns < TICK_NSEC) + predicted_ns = data->next_timer_ns; /* * Find the idle state with the lowest power while satisfying @@ -316,13 +311,15 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, if (idx == -1) idx = i; /* first enabled state */ + if (s->exit_latency_ns > latency_req) + break; + if (s->target_residency_ns > predicted_ns) { /* * Use a physical idle state, not busy polling, unless * a timer is going to trigger soon enough. */ if ((drv->states[idx].flags & CPUIDLE_FLAG_POLLING) && - s->exit_latency_ns <= latency_req && s->target_residency_ns <= data->next_timer_ns) { predicted_ns = s->target_residency_ns; idx = i; @@ -354,8 +351,6 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, return idx; } - if (s->exit_latency_ns > latency_req) - break; idx = i; }

2 days, 8 hours

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FAILED: patch "[PATCH] cpuidle: governors: menu: Avoid selecting states with too" failed to apply to 6.12-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.12-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-6.12.y git checkout FETCH_HEAD git cherry-pick -x 779b1a1cb13ae17028aeddb2fbbdba97357a1e15 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082214-daughter-popsicle-4c08@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 779b1a1cb13ae17028aeddb2fbbdba97357a1e15 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rafael.j.wysocki(a)intel.com> Date: Wed, 13 Aug 2025 12:25:58 +0200 Subject: [PATCH] cpuidle: governors: menu: Avoid selecting states with too much latency Occasionally, the exit latency of the idle state selected by the menu governor may exceed the PM QoS CPU wakeup latency limit. Namely, if the scheduler tick has been stopped already and predicted_ns is greater than the tick period length, the governor may return an idle state whose exit latency exceeds latency_req because that decision is made before checking the current idle state's exit latency. For instance, say that there are 3 idle states, 0, 1, and 2. For idle states 0 and 1, the exit latency is equal to the target residency and the values are 0 and 5 us, respectively. State 2 is deeper and has the exit latency and target residency of 200 us and 2 ms (which is greater than the tick period length), respectively. Say that predicted_ns is equal to TICK_NSEC and the PM QoS latency limit is 20 us. After the first two iterations of the main loop in menu_select(), idx becomes 1 and in the third iteration of it the target residency of the current state (state 2) is greater than predicted_ns. State 2 is not a polling one and predicted_ns is not less than TICK_NSEC, so the check on whether or not the tick has been stopped is done. Say that the tick has been stopped already and there are no imminent timers (that is, delta_tick is greater than the target residency of state 2). In that case, idx becomes 2 and it is returned immediately, but the exit latency of state 2 exceeds the latency limit. Address this issue by modifying the code to compare the exit latency of the current idle state (idle state i) with the latency limit before comparing its target residency with predicted_ns, which allows one more exit_latency_ns check that becomes redundant to be dropped. However, after the above change, latency_req cannot take the predicted_ns value any more, which takes place after commit 38f83090f515 ("cpuidle: menu: Remove iowait influence"), because it may cause a polling state to be returned prematurely. In the context of the previous example say that predicted_ns is 3000 and the PM QoS latency limit is still 20 us. Additionally, say that idle state 0 is a polling one. Moving the exit_latency_ns check before the target_residency_ns one causes the loop to terminate in the second iteration, before the target_residency_ns check, so idle state 0 will be returned even though previously state 1 would be returned if there were no imminent timers. For this reason, remove the assignment of the predicted_ns value to latency_req from the code. Fixes: 5ef499cd571c ("cpuidle: menu: Handle stopped tick more aggressively") Cc: 4.17+ <stable(a)vger.kernel.org> # 4.17+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Reviewed-by: Christian Loehle <christian.loehle(a)arm.com> Link: https://patch.msgid.link/5043159.31r3eYUQgx@rafael.j.wysocki diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index 81306612a5c6..b2e3d0b0a116 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -287,20 +287,15 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, return 0; } - if (tick_nohz_tick_stopped()) { - /* - * If the tick is already stopped, the cost of possible short - * idle duration misprediction is much higher, because the CPU - * may be stuck in a shallow idle state for a long time as a - * result of it. In that case say we might mispredict and use - * the known time till the closest timer event for the idle - * state selection. - */ - if (predicted_ns < TICK_NSEC) - predicted_ns = data->next_timer_ns; - } else if (latency_req > predicted_ns) { - latency_req = predicted_ns; - } + /* + * If the tick is already stopped, the cost of possible short idle + * duration misprediction is much higher, because the CPU may be stuck + * in a shallow idle state for a long time as a result of it. In that + * case, say we might mispredict and use the known time till the closest + * timer event for the idle state selection. + */ + if (tick_nohz_tick_stopped() && predicted_ns < TICK_NSEC) + predicted_ns = data->next_timer_ns; /* * Find the idle state with the lowest power while satisfying @@ -316,13 +311,15 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, if (idx == -1) idx = i; /* first enabled state */ + if (s->exit_latency_ns > latency_req) + break; + if (s->target_residency_ns > predicted_ns) { /* * Use a physical idle state, not busy polling, unless * a timer is going to trigger soon enough. */ if ((drv->states[idx].flags & CPUIDLE_FLAG_POLLING) && - s->exit_latency_ns <= latency_req && s->target_residency_ns <= data->next_timer_ns) { predicted_ns = s->target_residency_ns; idx = i; @@ -354,8 +351,6 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, return idx; } - if (s->exit_latency_ns > latency_req) - break; idx = i; }

2 days, 8 hours

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FAILED: patch "[PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to" 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 a40c5d727b8111b5db424a1e43e14a1dcce1e77f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082150-fiddle-impure-4da2@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a40c5d727b8111b5db424a1e43e14a1dcce1e77f Mon Sep 17 00:00:00 2001 From: Imre Deak <imre.deak(a)intel.com> Date: Thu, 5 Jun 2025 11:28:46 +0300 Subject: [PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reading DPCD registers has side-effects in general. In particular accessing registers outside of the link training register range (0x102-0x106, 0x202-0x207, 0x200c-0x200f, 0x2216) is explicitly forbidden by the DP v2.1 Standard, see 3.6.5.1 DPTX AUX Transaction Handling Mandates 3.6.7.4 128b/132b DP Link Layer LTTPR Link Training Mandates Based on my tests, accessing the DPCD_REV register during the link training of an UHBR TBT DP tunnel sink leads to link training failures. Solve the above by using the DP_LANE0_1_STATUS (0x202) register for the DPCD register access quirk. Cc: <stable(a)vger.kernel.org> Cc: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Cc: Jani Nikula <jani.nikula(a)linux.intel.com> Acked-by: Jani Nikula <jani.nikula(a)intel.com> Signed-off-by: Imre Deak <imre.deak(a)intel.com> Link: https://lore.kernel.org/r/20250605082850.65136-2-imre.deak@intel.com diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index f2a6559a2710..dc622c78db9d 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -725,7 +725,7 @@ ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset, * monitor doesn't power down exactly after the throw away read. */ if (!aux->is_remote) { - ret = drm_dp_dpcd_probe(aux, DP_DPCD_REV); + ret = drm_dp_dpcd_probe(aux, DP_LANE0_1_STATUS); if (ret < 0) return ret; }

2 days, 8 hours

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FAILED: patch "[PATCH] drm/amd: Restore cached manual clock settings during resume" failed to apply to 6.16-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.16-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-6.16.y git checkout FETCH_HEAD git cherry-pick -x 796ff8a7e01bd18738d3bb4111f9d6f963145d29 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082108-oil-trailing-aa0d@gregkh' --subject-prefix 'PATCH 6.16.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 796ff8a7e01bd18738d3bb4111f9d6f963145d29 Mon Sep 17 00:00:00 2001 From: Mario Limonciello <mario.limonciello(a)amd.com> Date: Thu, 24 Jul 2025 22:12:22 -0500 Subject: [PATCH] drm/amd: Restore cached manual clock settings during resume If the SCLK limits have been set before S3 they will not be restored. The limits are however cached in the driver and so they can be restored by running a commit sequence during resume. Acked-by: Alex Deucher <alexander.deucher(a)amd.com> Link: https://lore.kernel.org/r/20250725031222.3015095-3-superm1@kernel.org Signed-off-by: Mario Limonciello <mario.limonciello(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> (cherry picked from commit 4e9526924d09057a9ba854305e17eded900ced82) Cc: stable(a)vger.kernel.org diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index 310f51ff05b9..b47cb4a5f488 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -77,6 +77,9 @@ static void smu_power_profile_mode_get(struct smu_context *smu, static void smu_power_profile_mode_put(struct smu_context *smu, enum PP_SMC_POWER_PROFILE profile_mode); static enum smu_clk_type smu_convert_to_smuclk(enum pp_clock_type type); +static int smu_od_edit_dpm_table(void *handle, + enum PP_OD_DPM_TABLE_COMMAND type, + long *input, uint32_t size); static int smu_sys_get_pp_feature_mask(void *handle, char *buf) @@ -2195,6 +2198,7 @@ static int smu_resume(struct amdgpu_ip_block *ip_block) int ret; struct amdgpu_device *adev = ip_block->adev; struct smu_context *smu = adev->powerplay.pp_handle; + struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm); if (amdgpu_sriov_multi_vf_mode(adev)) return 0; @@ -2232,6 +2236,12 @@ static int smu_resume(struct amdgpu_ip_block *ip_block) return ret; } + if (smu_dpm_ctx->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL) { + ret = smu_od_edit_dpm_table(smu, PP_OD_COMMIT_DPM_TABLE, NULL, 0); + if (ret) + return ret; + } + dev_info(adev->dev, "SMU is resumed successfully!\n"); return 0;

2 days, 8 hours

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FAILED: patch "[PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to" 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 a40c5d727b8111b5db424a1e43e14a1dcce1e77f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082149-disfigure-divinely-bc5c@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a40c5d727b8111b5db424a1e43e14a1dcce1e77f Mon Sep 17 00:00:00 2001 From: Imre Deak <imre.deak(a)intel.com> Date: Thu, 5 Jun 2025 11:28:46 +0300 Subject: [PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reading DPCD registers has side-effects in general. In particular accessing registers outside of the link training register range (0x102-0x106, 0x202-0x207, 0x200c-0x200f, 0x2216) is explicitly forbidden by the DP v2.1 Standard, see 3.6.5.1 DPTX AUX Transaction Handling Mandates 3.6.7.4 128b/132b DP Link Layer LTTPR Link Training Mandates Based on my tests, accessing the DPCD_REV register during the link training of an UHBR TBT DP tunnel sink leads to link training failures. Solve the above by using the DP_LANE0_1_STATUS (0x202) register for the DPCD register access quirk. Cc: <stable(a)vger.kernel.org> Cc: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Cc: Jani Nikula <jani.nikula(a)linux.intel.com> Acked-by: Jani Nikula <jani.nikula(a)intel.com> Signed-off-by: Imre Deak <imre.deak(a)intel.com> Link: https://lore.kernel.org/r/20250605082850.65136-2-imre.deak@intel.com diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index f2a6559a2710..dc622c78db9d 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -725,7 +725,7 @@ ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset, * monitor doesn't power down exactly after the throw away read. */ if (!aux->is_remote) { - ret = drm_dp_dpcd_probe(aux, DP_DPCD_REV); + ret = drm_dp_dpcd_probe(aux, DP_LANE0_1_STATUS); if (ret < 0) return ret; }

2 days, 8 hours

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FAILED: patch "[PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to" failed to apply to 6.12-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.12-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-6.12.y git checkout FETCH_HEAD git cherry-pick -x a40c5d727b8111b5db424a1e43e14a1dcce1e77f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082149-baggy-limpness-3f61@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a40c5d727b8111b5db424a1e43e14a1dcce1e77f Mon Sep 17 00:00:00 2001 From: Imre Deak <imre.deak(a)intel.com> Date: Thu, 5 Jun 2025 11:28:46 +0300 Subject: [PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reading DPCD registers has side-effects in general. In particular accessing registers outside of the link training register range (0x102-0x106, 0x202-0x207, 0x200c-0x200f, 0x2216) is explicitly forbidden by the DP v2.1 Standard, see 3.6.5.1 DPTX AUX Transaction Handling Mandates 3.6.7.4 128b/132b DP Link Layer LTTPR Link Training Mandates Based on my tests, accessing the DPCD_REV register during the link training of an UHBR TBT DP tunnel sink leads to link training failures. Solve the above by using the DP_LANE0_1_STATUS (0x202) register for the DPCD register access quirk. Cc: <stable(a)vger.kernel.org> Cc: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Cc: Jani Nikula <jani.nikula(a)linux.intel.com> Acked-by: Jani Nikula <jani.nikula(a)intel.com> Signed-off-by: Imre Deak <imre.deak(a)intel.com> Link: https://lore.kernel.org/r/20250605082850.65136-2-imre.deak@intel.com diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index f2a6559a2710..dc622c78db9d 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -725,7 +725,7 @@ ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset, * monitor doesn't power down exactly after the throw away read. */ if (!aux->is_remote) { - ret = drm_dp_dpcd_probe(aux, DP_DPCD_REV); + ret = drm_dp_dpcd_probe(aux, DP_LANE0_1_STATUS); if (ret < 0) return ret; }

2 days, 8 hours

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FAILED: patch "[PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to" failed to apply to 6.16-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.16-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-6.16.y git checkout FETCH_HEAD git cherry-pick -x a40c5d727b8111b5db424a1e43e14a1dcce1e77f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082148-refutable-outmatch-8a67@gregkh' --subject-prefix 'PATCH 6.16.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a40c5d727b8111b5db424a1e43e14a1dcce1e77f Mon Sep 17 00:00:00 2001 From: Imre Deak <imre.deak(a)intel.com> Date: Thu, 5 Jun 2025 11:28:46 +0300 Subject: [PATCH] drm/dp: Change AUX DPCD probe address from DPCD_REV to LANE0_1_STATUS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reading DPCD registers has side-effects in general. In particular accessing registers outside of the link training register range (0x102-0x106, 0x202-0x207, 0x200c-0x200f, 0x2216) is explicitly forbidden by the DP v2.1 Standard, see 3.6.5.1 DPTX AUX Transaction Handling Mandates 3.6.7.4 128b/132b DP Link Layer LTTPR Link Training Mandates Based on my tests, accessing the DPCD_REV register during the link training of an UHBR TBT DP tunnel sink leads to link training failures. Solve the above by using the DP_LANE0_1_STATUS (0x202) register for the DPCD register access quirk. Cc: <stable(a)vger.kernel.org> Cc: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Cc: Jani Nikula <jani.nikula(a)linux.intel.com> Acked-by: Jani Nikula <jani.nikula(a)intel.com> Signed-off-by: Imre Deak <imre.deak(a)intel.com> Link: https://lore.kernel.org/r/20250605082850.65136-2-imre.deak@intel.com diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index f2a6559a2710..dc622c78db9d 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -725,7 +725,7 @@ ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset, * monitor doesn't power down exactly after the throw away read. */ if (!aux->is_remote) { - ret = drm_dp_dpcd_probe(aux, DP_DPCD_REV); + ret = drm_dp_dpcd_probe(aux, DP_LANE0_1_STATUS); if (ret < 0) return ret; }

2 days, 9 hours

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FAILED: patch "[PATCH] media: venus: vdec: Clamp param smaller than 1fps and bigger" 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 377dc500d253f0b26732b2cb062e89668aef890a # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082106-elevate-boil-beef@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 377dc500d253f0b26732b2cb062e89668aef890a Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda <ribalda(a)chromium.org> Date: Mon, 16 Jun 2025 15:29:14 +0000 Subject: [PATCH] media: venus: vdec: Clamp param smaller than 1fps and bigger than 240. The driver uses "whole" fps in all its calculations (e.g. in load_per_instance()). Those calculation expect an fps bigger than 1, and not big enough to overflow. Clamp the value if the user provides a param that will result in an invalid fps. Reported-by: Hans Verkuil <hverkuil(a)xs4all.nl> Closes: https://lore.kernel.org/linux-media/f11653a7-bc49-48cd-9cdb-1659147453e4@xs… Fixes: 7472c1c69138 ("[media] media: venus: vdec: add video decoder files") Cc: stable(a)vger.kernel.org Tested-by: Bryan O'Donoghue <bryan.odonoghue(a)linaro.org> # qrb5615-rb5 Reviewed-by: Bryan O'Donoghue <bryan.odonoghue(a)linaro.org> Signed-off-by: Ricardo Ribalda <ribalda(a)chromium.org> [bod: Change "parm" to "param"] Signed-off-by: Bryan O'Donoghue <bod(a)kernel.org> Signed-off-by: Hans Verkuil <hverkuil(a)xs4all.nl> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h index b412e0c5515a..5b1ba1c69adb 100644 --- a/drivers/media/platform/qcom/venus/core.h +++ b/drivers/media/platform/qcom/venus/core.h @@ -28,6 +28,8 @@ #define VIDC_RESETS_NUM_MAX 2 #define VIDC_MAX_HIER_CODING_LAYER 6 +#define VENUS_MAX_FPS 240 + extern int venus_fw_debug; struct freq_tbl { diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c index 99ce5fd41577..fca27be61f4b 100644 --- a/drivers/media/platform/qcom/venus/vdec.c +++ b/drivers/media/platform/qcom/venus/vdec.c @@ -481,11 +481,10 @@ static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC; do_div(us_per_frame, timeperframe->denominator); - if (!us_per_frame) - return -EINVAL; - + us_per_frame = clamp(us_per_frame, 1, USEC_PER_SEC); fps = (u64)USEC_PER_SEC; do_div(fps, us_per_frame); + fps = min(VENUS_MAX_FPS, fps); inst->fps = fps; inst->timeperframe = *timeperframe;

2 days, 9 hours

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[PATCH 6.16 0/9] 6.16.3-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.16.3 release. There are 9 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Sun, 24 Aug 2025 12:35:08 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.16.3-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.16.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.16.3-rc1 Zhang Yi <yi.zhang(a)huawei.com> ext4: replace ext4_writepage_trans_blocks() Zhang Yi <yi.zhang(a)huawei.com> ext4: reserved credits for one extent during the folio writeback Zhang Yi <yi.zhang(a)huawei.com> ext4: correct the reserved credits for extent conversion Zhang Yi <yi.zhang(a)huawei.com> ext4: enhance tracepoints during the folios writeback Zhang Yi <yi.zhang(a)huawei.com> ext4: restart handle if credits are insufficient during allocating blocks Zhang Yi <yi.zhang(a)huawei.com> ext4: refactor the block allocation process of ext4_page_mkwrite() Zhang Yi <yi.zhang(a)huawei.com> ext4: fix stale data if it bail out of the extents mapping loop Zhang Yi <yi.zhang(a)huawei.com> ext4: move the calculation of wbc->nr_to_write to mpage_folio_done() Zhang Yi <yi.zhang(a)huawei.com> ext4: process folios writeback in bytes ------------- Diffstat: Makefile | 4 +- fs/ext4/ext4.h | 2 +- fs/ext4/extents.c | 6 +- fs/ext4/inline.c | 6 +- fs/ext4/inode.c | 323 +++++++++++++++++++++++++++----------------- fs/ext4/move_extent.c | 3 +- fs/ext4/xattr.c | 2 +- include/trace/events/ext4.h | 47 +++++-- 8 files changed, 251 insertions(+), 142 deletions(-)

2 days, 9 hours

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