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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-05 15:11:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-05 15:11:50 -0700
commit818dbde78e0f4f11c9f804c36913a7ccfc2e87ad (patch)
treeee2e29760181dbb99327f712d29d1ad52600840c /drivers/scsi/sr.c
parent242b23319809e05170b3cc0d44d3b4bd202bb073 (diff)
parent22617e21633142dd2b81541cb3b95d6fb59aa85f (diff)
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley: :This series consists of the usual driver updates (qla2xxx, ufs, zfcp, target, scsi_debug, lpfc, qedi, qedf, hisi_sas, mpt3sas) plus a host of other minor updates. There are no major core changes in this series apart from a refactoring in scsi_lib.c" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (207 commits) scsi: ufs: ti-j721e-ufs: Fix unwinding of pm_runtime changes scsi: cxgb3i: Fix some leaks in init_act_open() scsi: ibmvscsi: Make some functions static scsi: iscsi: Fix deadlock on recovery path during GFP_IO reclaim scsi: ufs: Fix WriteBooster flush during runtime suspend scsi: ufs: Fix index of attributes query for WriteBooster feature scsi: ufs: Allow WriteBooster on UFS 2.2 devices scsi: ufs: Remove unnecessary memset for dev_info scsi: ufs-qcom: Fix scheduling while atomic issue scsi: mpt3sas: Fix reply queue count in non RDPQ mode scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited event scsi: target: tcmu: Fix a use after free in tcmu_check_expired_queue_cmd() scsi: vhost: Notify TCM about the maximum sg entries supported per command scsi: qla2xxx: Remove return value from qla_nvme_ls() scsi: qla2xxx: Remove an unused function scsi: iscsi: Register sysfs for iscsi workqueue scsi: scsi_debug: Parser tables and code interaction scsi: core: Refactor scsi_mq_setup_tags function scsi: core: Fix incorrect usage of shost_for_each_device scsi: qla2xxx: Fix endianness annotations in source files ...
Diffstat (limited to 'drivers/scsi/sr.c')
-rw-r--r--drivers/scsi/sr.c26
1 files changed, 10 insertions, 16 deletions
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index f9b589d60a46..4dcd735ea49e 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -51,6 +51,8 @@
#include <linux/pm_runtime.h>
#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+
#include <scsi/scsi.h>
#include <scsi/scsi_dbg.h>
#include <scsi/scsi_device.h>
@@ -344,10 +346,8 @@ static int sr_done(struct scsi_cmnd *SCpnt)
case ILLEGAL_REQUEST:
if (!(SCpnt->sense_buffer[0] & 0x90))
break;
- error_sector = (SCpnt->sense_buffer[3] << 24) |
- (SCpnt->sense_buffer[4] << 16) |
- (SCpnt->sense_buffer[5] << 8) |
- SCpnt->sense_buffer[6];
+ error_sector =
+ get_unaligned_be32(&SCpnt->sense_buffer[3]);
if (SCpnt->request->bio != NULL)
block_sectors =
bio_sectors(SCpnt->request->bio);
@@ -495,13 +495,9 @@ static blk_status_t sr_init_command(struct scsi_cmnd *SCpnt)
SCpnt->sdb.length = this_count * s_size;
}
- SCpnt->cmnd[2] = (unsigned char) (block >> 24) & 0xff;
- SCpnt->cmnd[3] = (unsigned char) (block >> 16) & 0xff;
- SCpnt->cmnd[4] = (unsigned char) (block >> 8) & 0xff;
- SCpnt->cmnd[5] = (unsigned char) block & 0xff;
+ put_unaligned_be32(block, &SCpnt->cmnd[2]);
SCpnt->cmnd[6] = SCpnt->cmnd[9] = 0;
- SCpnt->cmnd[7] = (unsigned char) (this_count >> 8) & 0xff;
- SCpnt->cmnd[8] = (unsigned char) this_count & 0xff;
+ put_unaligned_be16(this_count, &SCpnt->cmnd[7]);
/*
* We shouldn't disconnect in the middle of a sector, so with a dumb
@@ -853,8 +849,7 @@ static void get_sectorsize(struct scsi_cd *cd)
} else {
long last_written;
- cd->capacity = 1 + ((buffer[0] << 24) | (buffer[1] << 16) |
- (buffer[2] << 8) | buffer[3]);
+ cd->capacity = 1 + get_unaligned_be32(&buffer[0]);
/*
* READ_CAPACITY doesn't return the correct size on
* certain UDF media. If last_written is larger, use
@@ -865,8 +860,7 @@ static void get_sectorsize(struct scsi_cd *cd)
if (!cdrom_get_last_written(&cd->cdi, &last_written))
cd->capacity = max_t(long, cd->capacity, last_written);
- sector_size = (buffer[4] << 24) |
- (buffer[5] << 16) | (buffer[6] << 8) | buffer[7];
+ sector_size = get_unaligned_be32(&buffer[4]);
switch (sector_size) {
/*
* HP 4020i CD-Recorder reports 2340 byte sectors
@@ -954,13 +948,13 @@ static void get_capabilities(struct scsi_cd *cd)
}
n = data.header_length + data.block_descriptor_length;
- cd->cdi.speed = ((buffer[n + 8] << 8) + buffer[n + 9]) / 176;
+ cd->cdi.speed = get_unaligned_be16(&buffer[n + 8]) / 176;
cd->readcd_known = 1;
cd->readcd_cdda = buffer[n + 5] & 0x01;
/* print some capability bits */
sr_printk(KERN_INFO, cd,
"scsi3-mmc drive: %dx/%dx %s%s%s%s%s%s\n",
- ((buffer[n + 14] << 8) + buffer[n + 15]) / 176,
+ get_unaligned_be16(&buffer[n + 14]) / 176,
cd->cdi.speed,
buffer[n + 3] & 0x01 ? "writer " : "", /* CD Writer */
buffer[n + 3] & 0x20 ? "dvd-ram " : "",