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authorKees Cook <keescook@chromium.org>2018-08-02 23:22:13 +0200
committerJens Axboe <axboe@kernel.dk>2018-08-02 23:22:13 +0200
commite7d0748dd71695b94f3a35c8bdc05226a7f3d919 (patch)
tree77184457d67207941673fcb9b02648ef2fdbdc1e /drivers/cdrom/cdrom.c
parenttarget: don't depend on SCSI (diff)
downloadlinux-e7d0748dd71695b94f3a35c8bdc05226a7f3d919.tar.xz
linux-e7d0748dd71695b94f3a35c8bdc05226a7f3d919.zip
block: Switch struct packet_command to use struct scsi_sense_hdr
There is a lot of needless struct request_sense usage in the CDROM code. These can all be struct scsi_sense_hdr instead, to avoid any confusion over their respective structure sizes. This patch is a lot of noise changing "sense" to "sshdr", but the final code is more readable to distinguish between "sense" meaning "struct request_sense" and "sshdr" meaning "struct scsi_sense_hdr". Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/cdrom/cdrom.c')
-rw-r--r--drivers/cdrom/cdrom.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index a78b8e7085e9..86619472d916 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -345,10 +345,10 @@ static LIST_HEAD(cdrom_list);
int cdrom_dummy_generic_packet(struct cdrom_device_info *cdi,
struct packet_command *cgc)
{
- if (cgc->sense) {
- cgc->sense->sense_key = 0x05;
- cgc->sense->asc = 0x20;
- cgc->sense->ascq = 0x00;
+ if (cgc->sshdr) {
+ cgc->sshdr->sense_key = 0x05;
+ cgc->sshdr->asc = 0x20;
+ cgc->sshdr->ascq = 0x00;
}
cgc->stat = -EIO;
@@ -2943,7 +2943,7 @@ static noinline int mmc_ioctl_cdrom_read_data(struct cdrom_device_info *cdi,
struct packet_command *cgc,
int cmd)
{
- struct request_sense sense;
+ struct scsi_sense_hdr sshdr;
struct cdrom_msf msf;
int blocksize = 0, format = 0, lba;
int ret;
@@ -2971,13 +2971,13 @@ static noinline int mmc_ioctl_cdrom_read_data(struct cdrom_device_info *cdi,
if (cgc->buffer == NULL)
return -ENOMEM;
- memset(&sense, 0, sizeof(sense));
- cgc->sense = &sense;
+ memset(&sshdr, 0, sizeof(sshdr));
+ cgc->sshdr = &sshdr;
cgc->data_direction = CGC_DATA_READ;
ret = cdrom_read_block(cdi, cgc, lba, 1, format, blocksize);
- if (ret && sense.sense_key == 0x05 &&
- sense.asc == 0x20 &&
- sense.ascq == 0x00) {
+ if (ret && sshdr.sense_key == 0x05 &&
+ sshdr.asc == 0x20 &&
+ sshdr.ascq == 0x00) {
/*
* SCSI-II devices are not required to support
* READ_CD, so let's try switching block size
@@ -2986,7 +2986,7 @@ static noinline int mmc_ioctl_cdrom_read_data(struct cdrom_device_info *cdi,
ret = cdrom_switch_blocksize(cdi, blocksize);
if (ret)
goto out;
- cgc->sense = NULL;
+ cgc->sshdr = NULL;
ret = cdrom_read_cd(cdi, cgc, lba, blocksize, 1);
ret |= cdrom_switch_blocksize(cdi, blocksize);
}