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| author | Damien Le Moal <dlemoal@kernel.org> | 2023-05-11 03:13:39 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-05-22 17:05:19 -0400 |
| commit | a6cdc35fab0d813d54744abe2af07d6c49c07d6e (patch) | |
| tree | 6ede7a9a0285db907aec8206a219bef1a1b150ac /drivers/scsi/scsi_lib.c | |
| parent | 734326937b65cec7ffd00bfbbce0f791ac4aac84 (diff) | |
| download | linux-stable-a6cdc35fab0d813d54744abe2af07d6c49c07d6e.tar.gz linux-stable-a6cdc35fab0d813d54744abe2af07d6c49c07d6e.tar.bz2 linux-stable-a6cdc35fab0d813d54744abe2af07d6c49c07d6e.zip | |
scsi: core: Support retrieving sub-pages of mode pages
Allow scsi_mode_sense() to retrieve sub-pages of mode pages by adding the
subpage argument. Change all the current caller sites to specify the
subpage 0.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Link: https://lore.kernel.org/r/20230511011356.227789-7-nks@flawful.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index fac9c31161d2..633c4e8af830 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2144,6 +2144,7 @@ EXPORT_SYMBOL_GPL(scsi_mode_select); * @sdev: SCSI device to be queried * @dbd: set to prevent mode sense from returning block descriptors * @modepage: mode page being requested + * @subpage: sub-page of the mode page being requested * @buffer: request buffer (may not be smaller than eight bytes) * @len: length of request buffer. * @timeout: command timeout @@ -2155,7 +2156,7 @@ EXPORT_SYMBOL_GPL(scsi_mode_select); * Returns zero if successful, or a negative error number on failure */ int -scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage, +scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage, int subpage, unsigned char *buffer, int len, int timeout, int retries, struct scsi_mode_data *data, struct scsi_sense_hdr *sshdr) { @@ -2175,6 +2176,7 @@ scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage, dbd = sdev->set_dbd_for_ms ? 8 : dbd; cmd[1] = dbd & 0x18; /* allows DBD and LLBA bits */ cmd[2] = modepage; + cmd[3] = subpage; sshdr = exec_args.sshdr; |