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| author | Finn Thain <fthain@telegraphics.com.au> | 2019-11-02 04:06:54 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-11-13 06:21:35 +0300 |
| commit | 35c3363363ac7c8877b4984cdd8a2af377a4e92e (patch) | |
| tree | 35a07a58ebf9adb375791889236b6aa5fde1fbd7 /Documentation/scsi | |
| parent | 79172ab20bfd8437b277254028efdb68484e2c21 (diff) | |
| download | linux-35c3363363ac7c8877b4984cdd8a2af377a4e92e.tar.xz | |
scsi: core: Clean up SG_NONE
Remove SG_NONE and a related misleading comment. Update documentation.
This patch does not affect behaviour as zero initialization is redundant.
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Viresh Kumar <vireshk@kernel.org>
Cc: Oliver Neukum <oneukum@suse.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: usb-storage@lists.one-eyed-alien.net
Link: https://lore.kernel.org/r/b4779b7a6563f6bd8d259ee457871c1c463c420e.1572656814.git.fthain@telegraphics.com.au
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'Documentation/scsi')
| -rw-r--r-- | Documentation/scsi/scsi_mid_low_api.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/scsi/scsi_mid_low_api.txt b/Documentation/scsi/scsi_mid_low_api.txt index c1dd4939f4ae..2a4be1c3e6db 100644 --- a/Documentation/scsi/scsi_mid_low_api.txt +++ b/Documentation/scsi/scsi_mid_low_api.txt @@ -1084,7 +1084,8 @@ of interest: commands to the adapter. this_id - scsi id of host (scsi initiator) or -1 if not known sg_tablesize - maximum scatter gather elements allowed by host. - 0 implies scatter gather not supported by host + Set this to SG_ALL or less to avoid chained SG lists. + Must be at least 1. max_sectors - maximum number of sectors (usually 512 bytes) allowed in a single SCSI command. The default value of 0 leads to a setting of SCSI_DEFAULT_MAX_SECTORS (defined in |