On Mon, 22 Jun 2020 08:30:22 +0200, Hannes Reinecke wrote:
> scsi_host_find_tag() is used by the drivers to return a scsi
> command based on the command tag. Typically it's used from the
> interrupt handler to fetch the command associated with a value
> returned from hardware. Some drivers like fnic or qla4xxx, however,
> also use it also to traverse outstanding comands.
> With the current implementation scsi_host_find_tag() will return
> command even if they are not started (ie passed to the driver).
> This will result in random errors with those drivers.
> With this patch scsi_host_find_tag() will only return 'started'
> commands (ie commands which have been passed to the drivers)
> thus avoiding the above issue.
> The other usecases will be unaffected as the interrupt handler
> naturally will only ever return 'started' requests.
Applied to 5.9/scsi-queue, thanks!
[1/1] scsi: core: Only return started requests from scsi_host_find_tag()
https://git.kernel.org/mkp/scsi/c/e73a5e8e8003
--
Martin K. Petersen Oracle Linux Engineering
