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authorFinn Thain <fthain@telegraphics.com.au>2019-11-02 04:06:54 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2019-11-13 06:21:35 +0300
commit35c3363363ac7c8877b4984cdd8a2af377a4e92e (patch)
tree35a07a58ebf9adb375791889236b6aa5fde1fbd7 /Documentation/scsi
parent79172ab20bfd8437b277254028efdb68484e2c21 (diff)
downloadlinux-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.txt3
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