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authorHeiko Carstens <hca@linux.ibm.com>2021-10-20 13:51:18 +0200
committerJens Axboe <axboe@kernel.dk>2021-10-20 08:10:41 -0600
commit169bbdacaa473a2f3abd3ab8170e1c7795931560 (patch)
treec2661175b9e2b380488645db74ff61d825d4d155 /drivers/s390/block/dasd_erp.c
parent0c98057be9efa32de78dbc4685fc73da9d71faa1 (diff)
s390/dasd: handle request magic consistently as unsigned int
Get rid of the rather odd casts to character pointer of the dasd_ccw_req magic member and simply use the unsigned int value unmodified everywhere. Acked-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Link: https://lore.kernel.org/r/20211020115124.1735254-2-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/s390/block/dasd_erp.c')
-rw-r--r--drivers/s390/block/dasd_erp.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c
index ba4fa372d02d..c07e6e713518 100644
--- a/drivers/s390/block/dasd_erp.c
+++ b/drivers/s390/block/dasd_erp.c
@@ -24,7 +24,7 @@
#include "dasd_int.h"
struct dasd_ccw_req *
-dasd_alloc_erp_request(char *magic, int cplength, int datasize,
+dasd_alloc_erp_request(unsigned int magic, int cplength, int datasize,
struct dasd_device * device)
{
unsigned long flags;
@@ -33,8 +33,8 @@ dasd_alloc_erp_request(char *magic, int cplength, int datasize,
int size;
/* Sanity checks */
- BUG_ON( magic == NULL || datasize > PAGE_SIZE ||
- (cplength*sizeof(struct ccw1)) > PAGE_SIZE);
+ BUG_ON(datasize > PAGE_SIZE ||
+ (cplength*sizeof(struct ccw1)) > PAGE_SIZE);
size = (sizeof(struct dasd_ccw_req) + 7L) & -8L;
if (cplength > 0)
@@ -62,7 +62,7 @@ dasd_alloc_erp_request(char *magic, int cplength, int datasize,
cqr->data = data;
memset(cqr->data, 0, datasize);
}
- strncpy((char *) &cqr->magic, magic, 4);
+ cqr->magic = magic;
ASCEBC((char *) &cqr->magic, 4);
set_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
dasd_get_device(device);