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| author | Stephen Kitt <steve@sk2.org> | 2018-03-09 23:32:11 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-03-12 22:37:20 -0400 |
| commit | 92eb506262a2a3da9aeaece7017e77490da907dd (patch) | |
| tree | 1896ed10ae1166a3a01fe52ead7fd5a21540b872 /drivers/scsi/device_handler/scsi_dh_alua.c | |
| parent | e32ec6579f5b3134cb27cc063c17da0bb8cd29c7 (diff) | |
| download | linux-stable-92eb506262a2a3da9aeaece7017e77490da907dd.tar.gz linux-stable-92eb506262a2a3da9aeaece7017e77490da907dd.tar.bz2 linux-stable-92eb506262a2a3da9aeaece7017e77490da907dd.zip | |
scsi: device_handler: remove VLAs
In preparation to enabling -Wvla, remove VLAs and replace them with
fixed-length arrays instead.
scsi_dh_{alua,emc,rdac} use variable-length array declarations to store
command blocks, with the appropriate size as determined by
COMMAND_SIZE. This patch replaces these with fixed-sized arrays using
MAX_COMMAND_SIZE, so that the array size can be determined at compile
time.
This was prompted by https://lkml.org/lkml/2018/3/7/621
Signed-off-by: Stephen Kitt <steve@sk2.org>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/device_handler/scsi_dh_alua.c')
| -rw-r--r-- | drivers/scsi/device_handler/scsi_dh_alua.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 022e421c2185..c3483d811824 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -138,12 +138,12 @@ static void release_port_group(struct kref *kref) static int submit_rtpg(struct scsi_device *sdev, unsigned char *buff, int bufflen, struct scsi_sense_hdr *sshdr, int flags) { - u8 cdb[COMMAND_SIZE(MAINTENANCE_IN)]; + u8 cdb[MAX_COMMAND_SIZE]; int req_flags = REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER; /* Prepare the command. */ - memset(cdb, 0x0, COMMAND_SIZE(MAINTENANCE_IN)); + memset(cdb, 0x0, MAX_COMMAND_SIZE); cdb[0] = MAINTENANCE_IN; if (!(flags & ALUA_RTPG_EXT_HDR_UNSUPP)) cdb[1] = MI_REPORT_TARGET_PGS | MI_EXT_HDR_PARAM_FMT; @@ -166,7 +166,7 @@ static int submit_rtpg(struct scsi_device *sdev, unsigned char *buff, static int submit_stpg(struct scsi_device *sdev, int group_id, struct scsi_sense_hdr *sshdr) { - u8 cdb[COMMAND_SIZE(MAINTENANCE_OUT)]; + u8 cdb[MAX_COMMAND_SIZE]; unsigned char stpg_data[8]; int stpg_len = 8; int req_flags = REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | @@ -178,7 +178,7 @@ static int submit_stpg(struct scsi_device *sdev, int group_id, put_unaligned_be16(group_id, &stpg_data[6]); /* Prepare the command. */ - memset(cdb, 0x0, COMMAND_SIZE(MAINTENANCE_OUT)); + memset(cdb, 0x0, MAX_COMMAND_SIZE); cdb[0] = MAINTENANCE_OUT; cdb[1] = MO_SET_TARGET_PGS; put_unaligned_be32(stpg_len, &cdb[6]); |