review.tizen.org Git - platform/kernel/linux-rpi.git/commit

author	Xiang Chen <chenxiang66@hisilicon.com>
	Thu, 24 Feb 2022 11:51:28 +0000 (19:51 +0800)
committer	Martin K. Petersen <martin.petersen@oracle.com>
	Mon, 28 Feb 2022 02:46:40 +0000 (21:46 -0500)
commit	286ce4c65fbdf5eb9d4d5f4e4997c4e32bf1b073
tree	bf739904f878a19e1a727db166bae6d63f6578c3	tree \| snapshot
parent	86287065fac229c80ff4c78b2bc5c959213c8561	commit \| diff

scsi: hisi_sas: Limit users changing debugfs BIST count value

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>