Hi Kiwoong, On Wed, 2020-07-08 at 10:44 +0900, Kiwoong Kim wrote: > This includes functions to record contexts of incoming commands > in a circular queue. ufshcd.c has already some function > tracer calls to get command history but ftrace would be > gone when system dies before you get the information, > such as panic cases. > > This patch also implements callbacks compl_xfer_req > to store IO contexts at completion times. > > When you turn on CONFIG_SCSI_UFS_EXYNOS_CMD_LOG, > the driver collects the information from incoming commands > in the circular queue. > > Signed-off-by: Kiwoong Kim <kwmad.kim@xxxxxxxxxxx> > Acked-By: Stanley Chu <stanley.chu@xxxxxxxxxxxx> I am sorry, I did not ack this patch. Could you please fix the tag? Actually I acked another patch : ) "ufs: introduce a callback to get info of command completion" Please see https://patchwork.kernel.org/patch/11640901/ Thanks, Stanley Chu