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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Borislav Petkov <bp@suse.de>, Frank Li <Frank.li@nxp.com>,
	Will Deacon <will@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	linux-arm-kernel@lists.infradead.org,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 5.10 30/30] perf/imx_ddr: Fix undefined behavior due to shift overflowing the constant
Date: Mon, 11 Apr 2022 20:49:04 -0400	[thread overview]
Message-ID: <20220412004906.350678-30-sashal@kernel.org> (raw)
In-Reply-To: <20220412004906.350678-1-sashal@kernel.org>

From: Borislav Petkov <bp@suse.de>

[ Upstream commit d02b4dd84e1a90f7f1444d027c0289bf355b0d5a ]

Fix:

  In file included from <command-line>:0:0:
  In function ‘ddr_perf_counter_enable’,
      inlined from ‘ddr_perf_irq_handler’ at drivers/perf/fsl_imx8_ddr_perf.c:651:2:
  ././include/linux/compiler_types.h:352:38: error: call to ‘__compiletime_assert_729’ \
	declared with attribute error: FIELD_PREP: mask is not constant
    _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
...

See https://lore.kernel.org/r/YkwQ6%2BtIH8GQpuct@zn.tnic for the gory
details as to why it triggers with older gccs only.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Frank Li <Frank.li@nxp.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20220405151517.29753-10-bp@alien8.de
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/perf/fsl_imx8_ddr_perf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index 7f7bc0993670..e09bbf3890c4 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -29,7 +29,7 @@
 #define CNTL_OVER_MASK		0xFFFFFFFE
 
 #define CNTL_CSV_SHIFT		24
-#define CNTL_CSV_MASK		(0xFF << CNTL_CSV_SHIFT)
+#define CNTL_CSV_MASK		(0xFFU << CNTL_CSV_SHIFT)
 
 #define EVENT_CYCLES_ID		0
 #define EVENT_CYCLES_COUNTER	0
-- 
2.35.1


      parent reply	other threads:[~2022-04-12  1:04 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-12  0:48 [PATCH AUTOSEL 5.10 01/30] drm/amd: Add USBC connector ID Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 02/30] btrfs: fix fallocate to use file_modified to update permissions consistently Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 03/30] btrfs: do not warn for free space inode in cow_file_range Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 04/30] drm/amd/display: fix audio format not updated after edid updated Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 05/30] drm/amd/display: FEC check in timing validation Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 06/30] drm/amd/display: Update VTEM Infopacket definition Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 07/30] drm/amdkfd: Fix Incorrect VMIDs passed to HWS Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 08/30] drm/amdgpu/vcn: improve vcn dpg stop procedure Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 09/30] drm/amdkfd: Check for potential null return of kmalloc_array() Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 10/30] Drivers: hv: vmbus: Prevent load re-ordering when reading ring buffer Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 11/30] scsi: target: tcmu: Fix possible page UAF Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 12/30] scsi: lpfc: Fix queue failures when recovering from PCI parity error Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 13/30] scsi: ibmvscsis: Increase INITIAL_SRP_LIMIT to 1024 Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 14/30] net: micrel: fix KS8851_MLL Kconfig Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 15/30] ata: libata-core: Disable READ LOG DMA EXT for Samsung 840 EVOs Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 16/30] gpu: ipu-v3: Fix dev_dbg frequency output Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 17/30] regulator: wm8994: Add an off-on delay for WM8994 variant Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 18/30] arm64: alternatives: mark patch_alternative() as `noinstr` Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 19/30] tlb: hugetlb: Add more sizes to tlb_remove_huge_tlb_entry Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 20/30] net: axienet: setup mdio unconditionally Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 21/30] net: usb: aqc111: Fix out-of-bounds accesses in RX fixup Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 22/30] myri10ge: fix an incorrect free for skb in myri10ge_sw_tso Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 23/30] drm/amd/display: Revert FEC check in validation Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 24/30] drm/amd/display: Fix allocate_mst_payload assert on resume Sasha Levin
2022-04-12  0:48 ` [PATCH AUTOSEL 5.10 25/30] powerpc: Fix virt_addr_valid() for 64-bit Book3E & 32-bit Sasha Levin
2022-04-12  0:49 ` [PATCH AUTOSEL 5.10 26/30] scsi: mvsas: Add PCI ID of RocketRaid 2640 Sasha Levin
2022-04-12  0:49 ` [PATCH AUTOSEL 5.10 27/30] scsi: megaraid_sas: Target with invalid LUN ID is deleted during scan Sasha Levin
2022-04-12  0:49 ` [PATCH AUTOSEL 5.10 28/30] drivers: net: slip: fix NPD bug in sl_tx_timeout() Sasha Levin
2022-04-12  0:49 ` [PATCH AUTOSEL 5.10 29/30] arm64: Add part number for Arm Cortex-A78AE Sasha Levin
2022-04-12  0:49 ` Sasha Levin [this message]

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