wangshuaiwei 6557af8245 scsi: ufs: core: Fix shift out of bounds when MAXQ=32 ...

[ Upstream commit 2f38fd99c0 ]

According to JESD223F, the maximum number of queues (MAXQ) is 32. When MCQ
is enabled and ESI is disabled, nr_hw_queues=32 causes a shift overflow
problem.

Fix this by using 64-bit intermediate values to handle the nr_hw_queues=32
case safely.

Signed-off-by: wangshuaiwei <wangshuaiwei1@xiaomi.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260224063228.50112-1-wangshuaiwei1@xiaomi.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-03-25 11:08:25 +01:00

..

Kconfig

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Makefile

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ufs_bsg.c

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ufs_bsg.h

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ufs_trace.h

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ufs-debugfs.c

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ufs-debugfs.h

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ufs-fault-injection.c

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ufs-fault-injection.h

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ufs-hwmon.c

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ufs-mcq.c

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ufs-sysfs.c

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ufs-sysfs.h

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ufshcd-crypto.c

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ufshcd-crypto.h

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ufshcd-priv.h

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ufshcd.c

scsi: ufs: core: Fix shift out of bounds when MAXQ=32

2026-03-25 11:08:25 +01:00