July 2024 - Linux-stable-mirror

[PATCH v1] arm64: dts: imx8mp: Fix VPU PGC power-domain parents

by Vitor Soares

From: Vitor Soares <vitor.soares(a)toradex.com> On iMX8M Plus QuadLite (VPU-less SoC), the dependency between VPU power domains lead to a deferred probe error during boot: [ 17.140195] imx-pgc imx-pgc-domain.8: failed to command PGC [ 17.147183] platform imx-pgc-domain.11: deferred probe pending: (reason unknown) [ 17.147200] platform imx-pgc-domain.12: deferred probe pending: (reason unknown) [ 17.147207] platform imx-pgc-domain.13: deferred probe pending: (reason unknown) This is incorrect and should be the VPU blk-ctrl controlling these power domains, which is already doing it. After removing the `power-domain` property from the VPU PGC nodes, both iMX8M Plus w/ and w/out VPU boot correctly. However, it breaks the suspend/resume functionality. A fix for this is pending, see Links. Cc: <stable(a)vger.kernel.org> Fixes: df680992dd62 ("arm64: dts: imx8mp: add vpu pgc nodes") Link: https://lore.kernel.org/all/fcd6acc268b8642371cf289149b2b1c3e90c7f45.camel@… Link: https://lore.kernel.org/all/20240418155151.355133-1-ivitro@gmail.com/ Suggested-by: Lucas Stach <l.stach(a)pengutronix.de> Signed-off-by: Vitor Soares <vitor.soares(a)toradex.com> --- arch/arm64/boot/dts/freescale/imx8mp.dtsi | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index b92abb5a5c53..12548336b736 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -882,21 +882,18 @@ pgc_vpumix: power-domain@19 { pgc_vpu_g1: power-domain@20 { #power-domain-cells = <0>; - power-domains = <&pgc_vpumix>; reg = <IMX8MP_POWER_DOMAIN_VPU_G1>; clocks = <&clk IMX8MP_CLK_VPU_G1_ROOT>; }; pgc_vpu_g2: power-domain@21 { #power-domain-cells = <0>; - power-domains = <&pgc_vpumix>; reg = <IMX8MP_POWER_DOMAIN_VPU_G2>; clocks = <&clk IMX8MP_CLK_VPU_G2_ROOT>; }; pgc_vpu_vc8000e: power-domain@22 { #power-domain-cells = <0>; - power-domains = <&pgc_vpumix>; reg = <IMX8MP_POWER_DOMAIN_VPU_VC8000E>; clocks = <&clk IMX8MP_CLK_VPU_VC8KE_ROOT>; }; -- 2.34.1

9 months, 4 weeks

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[PATCH] Revert "platform/x86: toshiba_acpi: Add quirk for buttons on Z830"

by Armin Wolf

This reverts commit 10c66da9f87a96572ad92642ae060e827313b11c. The associated patch depends on the availability of the ACPI quickstart button driver, which will be available starting with kernel 6.10. This means that the patch brings no benifit for older kernels. Even worse, it was found out that the patch is buggy, causing regressions for people using older kernels. Fix this by simply reverting the patch from the 6.9 stable tree. Cc: <stable(a)vger.kernel.org> # 6.9.x Reported-by: kemal <kmal(a)cock.li> Signed-off-by: Armin Wolf <W_Armin(a)gmx.de> --- drivers/platform/x86/toshiba_acpi.c | 36 +++-------------------------- 1 file changed, 3 insertions(+), 33 deletions(-) diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 16e941449b14..77244c9aa60d 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -57,11 +57,6 @@ module_param(turn_on_panel_on_resume, int, 0644); MODULE_PARM_DESC(turn_on_panel_on_resume, "Call HCI_PANEL_POWER_ON on resume (-1 = auto, 0 = no, 1 = yes"); -static int hci_hotkey_quickstart = -1; -module_param(hci_hotkey_quickstart, int, 0644); -MODULE_PARM_DESC(hci_hotkey_quickstart, - "Call HCI_HOTKEY_EVENT with value 0x5 for quickstart button support (-1 = auto, 0 = no, 1 = yes"); - #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100" /* Scan code for Fn key on TOS1900 models */ @@ -141,7 +136,6 @@ MODULE_PARM_DESC(hci_hotkey_quickstart, #define HCI_ACCEL_MASK 0x7fff #define HCI_ACCEL_DIRECTION_MASK 0x8000 #define HCI_HOTKEY_DISABLE 0x0b -#define HCI_HOTKEY_ENABLE_QUICKSTART 0x05 #define HCI_HOTKEY_ENABLE 0x09 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10 #define HCI_LCD_BRIGHTNESS_BITS 3 @@ -2737,15 +2731,10 @@ static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev) return -ENODEV; /* - * Enable quickstart buttons if supported. - * * Enable the "Special Functions" mode only if they are * supported and if they are activated. */ - if (hci_hotkey_quickstart) - result = hci_write(dev, HCI_HOTKEY_EVENT, - HCI_HOTKEY_ENABLE_QUICKSTART); - else if (dev->kbd_function_keys_supported && dev->special_functions) + if (dev->kbd_function_keys_supported && dev->special_functions) result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_SPECIAL_FUNCTIONS); else @@ -3269,14 +3258,7 @@ static const char *find_hci_method(acpi_handle handle) * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing * the configured brightness level. */ -#define QUIRK_TURN_ON_PANEL_ON_RESUME BIT(0) -/* - * Some Toshibas use "quickstart" keys. On these, HCI_HOTKEY_EVENT must use - * the value HCI_HOTKEY_ENABLE_QUICKSTART. - */ -#define QUIRK_HCI_HOTKEY_QUICKSTART BIT(1) - -static const struct dmi_system_id toshiba_dmi_quirks[] = { +static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = { { /* Toshiba Portégé R700 */ /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */ @@ -3284,7 +3266,6 @@ static const struct dmi_system_id toshiba_dmi_quirks[] = { DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"), }, - .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME, }, { /* Toshiba Satellite/Portégé R830 */ @@ -3294,7 +3275,6 @@ static const struct dmi_system_id toshiba_dmi_quirks[] = { DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), DMI_MATCH(DMI_PRODUCT_NAME, "R830"), }, - .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME, }, { /* Toshiba Satellite/Portégé Z830 */ @@ -3302,7 +3282,6 @@ static const struct dmi_system_id toshiba_dmi_quirks[] = { DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), DMI_MATCH(DMI_PRODUCT_NAME, "Z830"), }, - .driver_data = (void *)(QUIRK_TURN_ON_PANEL_ON_RESUME | QUIRK_HCI_HOTKEY_QUICKSTART), }, }; @@ -3311,8 +3290,6 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev) struct toshiba_acpi_dev *dev; const char *hci_method; u32 dummy; - const struct dmi_system_id *dmi_id; - long quirks = 0; int ret = 0; if (toshiba_acpi) @@ -3465,15 +3442,8 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev) } #endif - dmi_id = dmi_first_match(toshiba_dmi_quirks); - if (dmi_id) - quirks = (long)dmi_id->driver_data; - if (turn_on_panel_on_resume == -1) - turn_on_panel_on_resume = !!(quirks & QUIRK_TURN_ON_PANEL_ON_RESUME); - - if (hci_hotkey_quickstart == -1) - hci_hotkey_quickstart = !!(quirks & QUIRK_HCI_HOTKEY_QUICKSTART); + turn_on_panel_on_resume = dmi_check_system(turn_on_panel_on_resume_dmi_ids); toshiba_wwan_available(dev); if (dev->wwan_supported) -- 2.39.2

9 months, 4 weeks

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[PATCH] usb: core: add missing of_node_put() in usb_of_has_devices_or_graph

by Javier Carrasco

The for_each_child_of_node() macro requires an explicit call to of_node_put() on early exits to decrement the child refcount and avoid a memory leak. The child node is not required outsie the loop, and the resource must be released before the function returns. Add the missing of_node_put(). Cc: stable(a)vger.kernel.org Fixes: 82e82130a78b ("usb: core: Set connect_type of ports based on DT node") Signed-off-by: Javier Carrasco <javier.carrasco.cruz(a)gmail.com> --- This bug was found while doing some code analysis, and I could not test it with real hardware. Although the issue and it solution are straightforward, any validation beyond compilation and static analysis is always welcome. --- drivers/usb/core/of.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/usb/core/of.c b/drivers/usb/core/of.c index f1a499ee482c..763e4122ed5b 100644 --- a/drivers/usb/core/of.c +++ b/drivers/usb/core/of.c @@ -84,9 +84,12 @@ static bool usb_of_has_devices_or_graph(const struct usb_device *hub) if (of_graph_is_present(np)) return true; - for_each_child_of_node(np, child) - if (of_property_present(child, "reg")) + for_each_child_of_node(np, child) { + if (of_property_present(child, "reg")) { + of_node_put(child); return true; + } + } return false; } --- base-commit: 62c97045b8f720c2eac807a5f38e26c9ed512371 change-id: 20240624-usb_core_of_memleak-79161623b62e Best regards, -- Javier Carrasco <javier.carrasco.cruz(a)gmail.com>

9 months, 4 weeks

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[PATCH v3] ACPI: processor_idle: Fix invalid comparison with insertion sort for latency

by Kuan-Wei Chiu

The acpi_cst_latency_cmp comparison function currently used for sorting C-state latencies does not satisfy transitivity, causing incorrect sorting results. Specifically, if there are two valid acpi_processor_cx elements A and B and one invalid element C, it may occur that A < B, A = C, and B = C. Sorting algorithms assume that if A < B and A = C, then C < B, leading to incorrect ordering. Given the small size of the array (<=8), we replace the library sort function with a simple insertion sort that properly ignores invalid elements and sorts valid ones based on latency. This change ensures correct ordering of the C-state latencies. Fixes: 65ea8f2c6e23 ("ACPI: processor idle: Fix up C-state latency if not ordered") Cc: stable(a)vger.kernel.org Reported-by: Julian Sikorski <belegdol(a)gmail.com> Closes: https://lore.kernel.org/lkml/70674dc7-5586-4183-8953-8095567e73df@gmail.com/ Signed-off-by: Kuan-Wei Chiu <visitorckw(a)gmail.com> --- v2 -> v3: - Remove #include <linux/sort.h> - Cc @stable Note: I only performed a build test and a simple unit test to ensure the latency of valid elements is correctly sorted in the randomly generated data. drivers/acpi/processor_idle.c | 36 ++++++++++++++--------------------- 1 file changed, 14 insertions(+), 22 deletions(-) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index bd6a7857ce05..17cc81340b4b 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -16,7 +16,6 @@ #include <linux/acpi.h> #include <linux/dmi.h> #include <linux/sched.h> /* need_resched() */ -#include <linux/sort.h> #include <linux/tick.h> #include <linux/cpuidle.h> #include <linux/cpu.h> @@ -386,25 +385,21 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr, acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, 1); } -static int acpi_cst_latency_cmp(const void *a, const void *b) +static void acpi_cst_latency_sort(struct acpi_processor_cx *arr, size_t length) { - const struct acpi_processor_cx *x = a, *y = b; + int i, j, k; - if (!(x->valid && y->valid)) - return 0; - if (x->latency > y->latency) - return 1; - if (x->latency < y->latency) - return -1; - return 0; -} -static void acpi_cst_latency_swap(void *a, void *b, int n) -{ - struct acpi_processor_cx *x = a, *y = b; - - if (!(x->valid && y->valid)) - return; - swap(x->latency, y->latency); + for (i = 1; i < length; i++) { + if (!arr[i].valid) + continue; + for (j = i - 1, k = i; j >= 0; j--) { + if (!arr[j].valid) + continue; + if (arr[j].latency > arr[k].latency) + swap(arr[j].latency, arr[k].latency); + k = j; + } + } } static int acpi_processor_power_verify(struct acpi_processor *pr) @@ -449,10 +444,7 @@ static int acpi_processor_power_verify(struct acpi_processor *pr) if (buggy_latency) { pr_notice("FW issue: working around C-state latencies out of order\n"); - sort(&pr->power.states[1], max_cstate, - sizeof(struct acpi_processor_cx), - acpi_cst_latency_cmp, - acpi_cst_latency_swap); + acpi_cst_latency_sort(&pr->power.states[1], max_cstate); } lapic_timer_propagate_broadcast(pr); -- 2.34.1

9 months, 4 weeks

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Re: [PATCH 6.9 000/222] 6.9.8-rc1 review

by Ronald Warsow

Hi Greg no regressions here on x86_64 (RKL, Intel 11th Gen. CPU) Thanks Tested-by: Ronald Warsow <rwarsow(a)gmx.de>

9 months, 4 weeks

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[PATCH v2] dt-bindings: thermal: correct thermal zone node name limit

by Krzysztof Kozlowski

Linux kernel uses thermal zone node name during registering thermal zones and has a hard-coded limit of 20 characters, including terminating NUL byte. The bindings expect node names to finish with '-thermal' which is eight bytes long, thus we have only 11 characters for the reset of the node name (thus 10 for the pattern after leading fixed character). Reported-by: Rob Herring <robh(a)kernel.org> Closes: https://lore.kernel.org/all/CAL_JsqKogbT_4DPd1n94xqeHaU_J8ve5K09WOyVsRX3jxx… Fixes: 1202a442a31f ("dt-bindings: thermal: Add yaml bindings for thermal zones") Cc: <stable(a)vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> --- Changes in v2: 1. Shorten the pattern and mention source of size requirement (Rob). --- Documentation/devicetree/bindings/thermal/thermal-zones.yaml | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml index 68398e7e8655..606b80965a44 100644 --- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml @@ -49,7 +49,10 @@ properties: to take when the temperature crosses those thresholds. patternProperties: - "^[a-zA-Z][a-zA-Z0-9\\-]{1,12}-thermal$": + # Node name is limited in size due to Linux kernel requirements - 19 + # characters in total (see THERMAL_NAME_LENGTH, including terminating NUL + # byte): + "^[a-zA-Z][a-zA-Z0-9\\-]{1,10}-thermal$": type: object description: Each thermal zone node contains information about how frequently it -- 2.43.0

9 months, 4 weeks

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[PATCH v1 2/5] devres: Fix memory leakage caused by driver API devm_free_percpu()

by Zijun Hu

It will cause memory leakage when use driver API devm_free_percpu() to free memory allocated by devm_alloc_percpu(), fixed by using devres_release() instead of devres_destroy() within devm_free_percpu(). Fixes: ff86aae3b411 ("devres: add devm_alloc_percpu()") Cc: stable(a)vger.kernel.org Signed-off-by: Zijun Hu <quic_zijuhu(a)quicinc.com> --- Previous discussion link: https://lore.kernel.org/lkml/1718804281-1796-1-git-send-email-quic_zijuhu@q… drivers/base/devres.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/base/devres.c b/drivers/base/devres.c index ff2247eec43c..8d709dbd4e0c 100644 --- a/drivers/base/devres.c +++ b/drivers/base/devres.c @@ -1225,7 +1225,11 @@ EXPORT_SYMBOL_GPL(__devm_alloc_percpu); */ void devm_free_percpu(struct device *dev, void __percpu *pdata) { - WARN_ON(devres_destroy(dev, devm_percpu_release, devm_percpu_match, + /* + * Use devres_release() to prevent memory leakage as + * devm_free_pages() does. + */ + WARN_ON(devres_release(dev, devm_percpu_release, devm_percpu_match, (__force void *)pdata)); } EXPORT_SYMBOL_GPL(devm_free_percpu); -- 2.34.1

9 months, 4 weeks

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[PATCH v1 1/5] devres: Fix devm_krealloc() wasting memory

by Zijun Hu

Driver API devm_krealloc() calls alloc_dr() with wrong argument @total_new_size, so causes more memory to be allocated than required fix this memory waste by using @new_size as the argument for alloc_dr(). Fixes: f82485722e5d ("devres: provide devm_krealloc()") Cc: stable(a)vger.kernel.org Signed-off-by: Zijun Hu <quic_zijuhu(a)quicinc.com> --- Previous discussion link: https://lore.kernel.org/all/1718531655-29761-1-git-send-email-quic_zijuhu@q… Changes since the original one: - Correct tile and commit message - Add inline comments and stable tag drivers/base/devres.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/base/devres.c b/drivers/base/devres.c index 3df0025d12aa..ff2247eec43c 100644 --- a/drivers/base/devres.c +++ b/drivers/base/devres.c @@ -896,9 +896,12 @@ void *devm_krealloc(struct device *dev, void *ptr, size_t new_size, gfp_t gfp) /* * Otherwise: allocate new, larger chunk. We need to allocate before * taking the lock as most probably the caller uses GFP_KERNEL. + * alloc_dr() will call check_dr_size() to reserve extra memory + * for struct devres automatically, so size @new_size user request + * is delivered to it directly as devm_kmalloc() does. */ new_dr = alloc_dr(devm_kmalloc_release, - total_new_size, gfp, dev_to_node(dev)); + new_size, gfp, dev_to_node(dev)); if (!new_dr) return NULL; -- 2.34.1

9 months, 4 weeks

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[PATCH] net: stmmac: dwmac-qcom-ethqos: fix error array size

by YijieYang

From: Yijie Yang <quic_yijiyang(a)quicinc.com> Correct member @num_por with size of right array @emac_v4_0_0_por for struct ethqos_emac_driver_data @emac_v4_0_0_data. Cc: stable(a)vger.kernel.org Fixes: 8c4d92e82d50 ("net: stmmac: dwmac-qcom-ethqos: add support for emac4 on sa8775p platforms") Signed-off-by: Yijie Yang <quic_yijiyang(a)quicinc.com> --- drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c index 80eb72bc6311..e8a1701cdb7c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c @@ -272,7 +272,7 @@ static const struct ethqos_emac_por emac_v4_0_0_por[] = { static const struct ethqos_emac_driver_data emac_v4_0_0_data = { .por = emac_v4_0_0_por, - .num_por = ARRAY_SIZE(emac_v3_0_0_por), + .num_por = ARRAY_SIZE(emac_v4_0_0_por), .rgmii_config_loopback_en = false, .has_emac_ge_3 = true, .link_clk_name = "phyaux", base-commit: 0fc4bfab2cd45f9acb86c4f04b5191e114e901ed -- 2.34.1

9 months, 4 weeks

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[PATCH v2] dt-bindings: phy: qcom,qmp-usb: fix spelling error

by YijieYang

From: Yijie Yang <quic_yijiyang(a)quicinc.com> Correct the spelling error, changing 'com' to 'qcom'. Cc: stable(a)vger.kernel.org Fixes: f75a4b3a6efc ("dt-bindings: phy: qcom,qmp-usb: Add QDU1000 USB3 PHY") Signed-off-by: Yijie Yang <quic_yijiyang(a)quicinc.com> --- v1 -> v2: - add 'Fixes' and 'Cc-stable' tags previous discussion here: [1] v1: https://lore.kernel.org/all/20240621061521.332567-1-quic_yijiyang@quicinc.c… --- .../devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml index 5755245ecfd6..0e0b6cae07bc 100644 --- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml +++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml @@ -20,7 +20,7 @@ properties: - qcom,ipq8074-qmp-usb3-phy - qcom,ipq9574-qmp-usb3-phy - qcom,msm8996-qmp-usb3-phy - - com,qdu1000-qmp-usb3-uni-phy + - qcom,qdu1000-qmp-usb3-uni-phy - qcom,sa8775p-qmp-usb3-uni-phy - qcom,sc8180x-qmp-usb3-uni-phy - qcom,sc8280xp-qmp-usb3-uni-phy base-commit: b992b79ca8bc336fa8e2c80990b5af80ed8f36fd -- 2.34.1

9 months, 4 weeks

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