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

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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>

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wangshuaiwei 2026-02-24 14:32:28 +08:00 • committed by Greg Kroah-Hartman

parent f4f590c6c9

commit 5faf0ce7d7

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drivers/ufs/core/ufshcd.c

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