From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Qi Liu <liuqi115@huawei.com>, John Garry <john.garry@huawei.com>,
Will Deacon <will@kernel.org>, Sasha Levin <sashal@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org
Subject: [PATCH AUTOSEL 5.7 37/40] drivers/perf: Prevent forced unbinding of PMU drivers
Date: Mon, 20 Jul 2020 17:37:12 -0400 [thread overview]
Message-ID: <20200720213715.406997-37-sashal@kernel.org> (raw)
In-Reply-To: <20200720213715.406997-1-sashal@kernel.org>
From: Qi Liu <liuqi115@huawei.com>
[ Upstream commit f32ed8eb0e3f0d0ef4ddb854554d60ca5863a9f9 ]
Forcefully unbinding PMU drivers during perf sampling will lead to
a kernel panic, because the perf upper-layer framework call a NULL
pointer in this situation.
To solve this issue, "suppress_bind_attrs" should be set to true, so
that bind/unbind can be disabled via sysfs and prevent unbinding PMU
drivers during perf sampling.
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1594975763-32966-1-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/perf/arm-cci.c | 1 +
drivers/perf/arm-ccn.c | 1 +
drivers/perf/arm_dsu_pmu.c | 1 +
drivers/perf/arm_smmuv3_pmu.c | 1 +
drivers/perf/arm_spe_pmu.c | 1 +
drivers/perf/fsl_imx8_ddr_perf.c | 1 +
drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 1 +
drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 1 +
drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 1 +
drivers/perf/qcom_l2_pmu.c | 1 +
drivers/perf/qcom_l3_pmu.c | 1 +
drivers/perf/thunderx2_pmu.c | 1 +
drivers/perf/xgene_pmu.c | 1 +
13 files changed, 13 insertions(+)
diff --git a/drivers/perf/arm-cci.c b/drivers/perf/arm-cci.c
index 1b8e337a29cac..87c4be9dd4125 100644
--- a/drivers/perf/arm-cci.c
+++ b/drivers/perf/arm-cci.c
@@ -1718,6 +1718,7 @@ static struct platform_driver cci_pmu_driver = {
.driver = {
.name = DRIVER_NAME,
.of_match_table = arm_cci_pmu_matches,
+ .suppress_bind_attrs = true,
},
.probe = cci_pmu_probe,
.remove = cci_pmu_remove,
diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c
index d50edef91f59b..7b7d23f257139 100644
--- a/drivers/perf/arm-ccn.c
+++ b/drivers/perf/arm-ccn.c
@@ -1545,6 +1545,7 @@ static struct platform_driver arm_ccn_driver = {
.driver = {
.name = "arm-ccn",
.of_match_table = arm_ccn_match,
+ .suppress_bind_attrs = true,
},
.probe = arm_ccn_probe,
.remove = arm_ccn_remove,
diff --git a/drivers/perf/arm_dsu_pmu.c b/drivers/perf/arm_dsu_pmu.c
index 70968c8c09d7f..4594e2ed13d59 100644
--- a/drivers/perf/arm_dsu_pmu.c
+++ b/drivers/perf/arm_dsu_pmu.c
@@ -759,6 +759,7 @@ static struct platform_driver dsu_pmu_driver = {
.driver = {
.name = DRVNAME,
.of_match_table = of_match_ptr(dsu_pmu_of_match),
+ .suppress_bind_attrs = true,
},
.probe = dsu_pmu_device_probe,
.remove = dsu_pmu_device_remove,
diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c
index 90caba56dfbc1..4cdb35d166acc 100644
--- a/drivers/perf/arm_smmuv3_pmu.c
+++ b/drivers/perf/arm_smmuv3_pmu.c
@@ -860,6 +860,7 @@ static void smmu_pmu_shutdown(struct platform_device *pdev)
static struct platform_driver smmu_pmu_driver = {
.driver = {
.name = "arm-smmu-v3-pmcg",
+ .suppress_bind_attrs = true,
},
.probe = smmu_pmu_probe,
.remove = smmu_pmu_remove,
diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c
index b72c048525990..c5418fd3122c2 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c
@@ -1228,6 +1228,7 @@ static struct platform_driver arm_spe_pmu_driver = {
.driver = {
.name = DRVNAME,
.of_match_table = of_match_ptr(arm_spe_pmu_of_match),
+ .suppress_bind_attrs = true,
},
.probe = arm_spe_pmu_device_probe,
.remove = arm_spe_pmu_device_remove,
diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index 2aed2d96f8ae7..397540a4b799c 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -707,6 +707,7 @@ static struct platform_driver imx_ddr_pmu_driver = {
.driver = {
.name = "imx-ddr-pmu",
.of_match_table = imx_ddr_pmu_dt_ids,
+ .suppress_bind_attrs = true,
},
.probe = ddr_perf_probe,
.remove = ddr_perf_remove,
diff --git a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
index c65da06abb041..3418527366408 100644
--- a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
@@ -417,6 +417,7 @@ static struct platform_driver hisi_ddrc_pmu_driver = {
.driver = {
.name = "hisi_ddrc_pmu",
.acpi_match_table = ACPI_PTR(hisi_ddrc_pmu_acpi_match),
+ .suppress_bind_attrs = true,
},
.probe = hisi_ddrc_pmu_probe,
.remove = hisi_ddrc_pmu_remove,
diff --git a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
index ee6e6a1c390a0..375c4737a088a 100644
--- a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
@@ -429,6 +429,7 @@ static struct platform_driver hisi_hha_pmu_driver = {
.driver = {
.name = "hisi_hha_pmu",
.acpi_match_table = ACPI_PTR(hisi_hha_pmu_acpi_match),
+ .suppress_bind_attrs = true,
},
.probe = hisi_hha_pmu_probe,
.remove = hisi_hha_pmu_remove,
diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
index c8b98d3a8432a..44e8a660c5f52 100644
--- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
@@ -419,6 +419,7 @@ static struct platform_driver hisi_l3c_pmu_driver = {
.driver = {
.name = "hisi_l3c_pmu",
.acpi_match_table = ACPI_PTR(hisi_l3c_pmu_acpi_match),
+ .suppress_bind_attrs = true,
},
.probe = hisi_l3c_pmu_probe,
.remove = hisi_l3c_pmu_remove,
diff --git a/drivers/perf/qcom_l2_pmu.c b/drivers/perf/qcom_l2_pmu.c
index 21d6991dbe0ba..4da37f650f983 100644
--- a/drivers/perf/qcom_l2_pmu.c
+++ b/drivers/perf/qcom_l2_pmu.c
@@ -1028,6 +1028,7 @@ static struct platform_driver l2_cache_pmu_driver = {
.driver = {
.name = "qcom-l2cache-pmu",
.acpi_match_table = ACPI_PTR(l2_cache_pmu_acpi_match),
+ .suppress_bind_attrs = true,
},
.probe = l2_cache_pmu_probe,
.remove = l2_cache_pmu_remove,
diff --git a/drivers/perf/qcom_l3_pmu.c b/drivers/perf/qcom_l3_pmu.c
index 656e830798d9e..9ddb577c542b5 100644
--- a/drivers/perf/qcom_l3_pmu.c
+++ b/drivers/perf/qcom_l3_pmu.c
@@ -814,6 +814,7 @@ static struct platform_driver qcom_l3_cache_pmu_driver = {
.driver = {
.name = "qcom-l3cache-pmu",
.acpi_match_table = ACPI_PTR(qcom_l3_cache_pmu_acpi_match),
+ .suppress_bind_attrs = true,
},
.probe = qcom_l3_cache_pmu_probe,
};
diff --git a/drivers/perf/thunderx2_pmu.c b/drivers/perf/thunderx2_pmu.c
index 51b31d6ff2c4c..aac9823b0c6bb 100644
--- a/drivers/perf/thunderx2_pmu.c
+++ b/drivers/perf/thunderx2_pmu.c
@@ -1017,6 +1017,7 @@ static struct platform_driver tx2_uncore_driver = {
.driver = {
.name = "tx2-uncore-pmu",
.acpi_match_table = ACPI_PTR(tx2_uncore_acpi_match),
+ .suppress_bind_attrs = true,
},
.probe = tx2_uncore_probe,
.remove = tx2_uncore_remove,
diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index 46ee6807d533a..edac28cd25ddc 100644
--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -1975,6 +1975,7 @@ static struct platform_driver xgene_pmu_driver = {
.name = "xgene-pmu",
.of_match_table = xgene_pmu_of_match,
.acpi_match_table = ACPI_PTR(xgene_pmu_acpi_match),
+ .suppress_bind_attrs = true,
},
};
--
2.25.1
next prev parent reply other threads:[~2020-07-20 21:38 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-20 21:36 [PATCH AUTOSEL 5.7 01/40] HID: i2c-hid: add Mediacom FlexBook edge13 to descriptor override Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 02/40] HID: alps: support devices with report id 2 Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 03/40] dmaengine: ti: k3-udma: Fix cleanup code for alloc_chan_resources Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 04/40] dmaengine: ti: k3-udma: Fix the running channel handling in alloc_chan_resources Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 05/40] HID: steam: fixes race in handling device list Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 06/40] dmaengine: ti: k3-udma: add missing put_device() call in of_xudma_dev_get() Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 07/40] dmaengine: idxd: fix hw descriptor fields for delta record Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 08/40] HID: apple: Disable Fn-key key-re-mapping on clone keyboards Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 09/40] dmaengine: tegra210-adma: Fix runtime PM imbalance on error Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 10/40] soc: amlogic: meson-gx-socinfo: Fix S905X3 and S905D3 ID's Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 11/40] Input: add `SW_MACHINE_COVER` Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 12/40] ARM: dts: n900: remove mmc1 card detect gpio Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 13/40] spi: mediatek: use correct SPI_CFG2_REG MACRO Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 14/40] regmap: dev_get_regmap_match(): fix string comparison Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 15/40] hwmon: (aspeed-pwm-tacho) Avoid possible buffer overflow Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 16/40] dmaengine: fsl-edma: fix wrong tcd endianness for big-endian cpu Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 17/40] dmaengine: ioat setting ioat timeout as module parameter Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 18/40] Input: synaptics - enable InterTouch for ThinkPad X1E 1st gen Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 19/40] Input: elan_i2c - only increment wakeup count on touch Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 20/40] usb: dwc3: pci: add support for the Intel Tiger Lake PCH -H variant Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 21/40] usb: dwc3: pci: add support for the Intel Jasper Lake Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 22/40] usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init() Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 23/40] usb: cdns3: ep0: fix some endian issues Sasha Levin
2020-07-20 21:36 ` [PATCH AUTOSEL 5.7 24/40] usb: cdns3: trace: " Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 25/40] hwmon: (adm1275) Make sure we are reading enough data for different chips Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 26/40] drm/amdgpu/gfx10: fix race condition for kiq Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 27/40] drm/amdgpu: fix preemption unit test Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 28/40] hwmon: (nct6775) Accept PECI Calibration as temperature source for NCT6798D Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 29/40] platform/x86: ISST: Add new PCI device ids Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 30/40] platform/x86: asus-wmi: allow BAT1 battery name Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 31/40] hwmon: (scmi) Fix potential buffer overflow in scmi_hwmon_probe() Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 32/40] ALSA: hda/realtek - fixup for yet another Intel reference board Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 33/40] drivers/perf: Fix kernel panic when rmmod PMU modules during perf sampling Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 34/40] arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 35/40] x86: math-emu: Fix up 'cmp' insn for clang ias Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 36/40] asm-generic/mmiowb: Allow mmiowb_set_pending() when preemptible() Sasha Levin
2020-07-20 21:37 ` Sasha Levin [this message]
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 38/40] RISC-V: Upgrade smp_mb__after_spinlock() to iorw,iorw Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 39/40] SUNRPC reverting d03727b248d0 ("NFSv4 fix CLOSE not waiting for direct IO compeletion") Sasha Levin
2020-07-20 21:37 ` [PATCH AUTOSEL 5.7 40/40] x86/boot: Don't add the EFI stub to targets Sasha Levin
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