scsi: hisi_sas: Limit users changing debugfs BIST count value

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Add a file operation for "cnt" file under bist directory, so users can only
read "cnt" or clear "cnt" to zero, but cannot randomly modify.

Link: https://lore.kernel.org/r/1645703489-87194-6-git-send-email-john.garry@huawei.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Xiang Chen 2022-02-24 19:51:28 +08:00 • committed by Martin K. Petersen

parent 86287065fa

commit 286ce4c65f

1 changed files with 50 additions and 2 deletions

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drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

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