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authorHeiko Carstens <hca@linux.ibm.com>2024-03-07 13:28:14 +0100
committerHeiko Carstens <hca@linux.ibm.com>2024-03-13 09:23:47 +0100
commite1f51be68d9906e652d4678c4df1d34a9d8ad9ef (patch)
treeea3d9dc24199693e24bd6cd9235b65a2dba3f4b5 /drivers
parent0c9580cebb5065c7ef25d48f61222aaf46932a0f (diff)
downloadlwn-e1f51be68d9906e652d4678c4df1d34a9d8ad9ef.tar.gz
lwn-e1f51be68d9906e652d4678c4df1d34a9d8ad9ef.zip
s390/cio,idal: fix virtual vs physical address confusion
Fix virtual vs physical address confusion. This does not fix a bug since virtual and physical address spaces are currently the same. Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/s390/block/dasd_eckd.c16
-rw-r--r--drivers/s390/block/dasd_fba.c4
-rw-r--r--drivers/s390/char/fs3270.c6
3 files changed, 12 insertions, 14 deletions
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 93bf1f7b263c..180a008d38ea 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -3961,7 +3961,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
unsigned int blksize)
{
struct dasd_eckd_private *private;
- unsigned long *idaws;
+ dma64_t *idaws;
struct LO_eckd_data *LO_data;
struct dasd_ccw_req *cqr;
struct ccw1 *ccw;
@@ -4039,8 +4039,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
dasd_sfree_request(cqr, startdev);
return ERR_PTR(-EAGAIN);
}
- idaws = (unsigned long *) (cqr->data +
- sizeof(struct PFX_eckd_data));
+ idaws = (dma64_t *)(cqr->data + sizeof(struct PFX_eckd_data));
} else {
if (define_extent(ccw++, cqr->data, first_trk,
last_trk, cmd, basedev, 0) == -EAGAIN) {
@@ -4050,8 +4049,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
dasd_sfree_request(cqr, startdev);
return ERR_PTR(-EAGAIN);
}
- idaws = (unsigned long *) (cqr->data +
- sizeof(struct DE_eckd_data));
+ idaws = (dma64_t *)(cqr->data + sizeof(struct DE_eckd_data));
}
/* Build locate_record+read/write/ccws. */
LO_data = (struct LO_eckd_data *) (idaws + cidaw);
@@ -4152,7 +4150,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
unsigned int blk_per_trk,
unsigned int blksize)
{
- unsigned long *idaws;
+ dma64_t *idaws;
struct dasd_ccw_req *cqr;
struct ccw1 *ccw;
struct req_iterator iter;
@@ -4222,7 +4220,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
* (or 2K blocks on 31-bit)
* - the scope of a ccw and it's idal ends with the track boundaries
*/
- idaws = (unsigned long *) (cqr->data + sizeof(struct PFX_eckd_data));
+ idaws = (dma64_t *)(cqr->data + sizeof(struct PFX_eckd_data));
recid = first_rec;
new_track = 1;
end_idaw = 0;
@@ -4738,11 +4736,11 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_raw(struct dasd_device *startdev,
struct req_iterator iter;
struct dasd_ccw_req *cqr;
unsigned int trkcount;
- unsigned long *idaws;
unsigned int size;
unsigned char cmd;
struct bio_vec bv;
struct ccw1 *ccw;
+ dma64_t *idaws;
int use_prefix;
void *data;
char *dst;
@@ -4823,7 +4821,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_raw(struct dasd_device *startdev,
trkcount, cmd, basedev, 0, 0);
}
- idaws = (unsigned long *)(cqr->data + size);
+ idaws = (dma64_t *)(cqr->data + size);
len_to_track_end = 0;
if (start_padding_sectors) {
ccw[-1].flags |= CCW_FLAG_CC;
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 3ff4bc9494b8..361e9bd75257 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -427,7 +427,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp_regular(
struct request *req)
{
struct dasd_fba_private *private = block->base->private;
- unsigned long *idaws;
+ dma64_t *idaws;
struct LO_fba_data *LO_data;
struct dasd_ccw_req *cqr;
struct ccw1 *ccw;
@@ -487,7 +487,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp_regular(
define_extent(ccw++, cqr->data, rq_data_dir(req),
block->bp_block, blk_rq_pos(req), blk_rq_sectors(req));
/* Build locate_record + read/write ccws. */
- idaws = (unsigned long *) (cqr->data + sizeof(struct DE_fba_data));
+ idaws = (dma64_t *)(cqr->data + sizeof(struct DE_fba_data));
LO_data = (struct LO_fba_data *) (idaws + cidaw);
/* Locate record for all blocks for smart devices. */
if (private->rdc_data.mode.bits.data_chain != 0) {
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 4f26b0a55620..ce1f3740068c 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -126,7 +126,7 @@ static int fs3270_activate(struct raw3270_view *view)
raw3270_request_set_cmd(fp->init, TC_EWRITEA);
raw3270_request_set_idal(fp->init, fp->rdbuf);
fp->init->rescnt = 0;
- cp = fp->rdbuf->data[0];
+ cp = dma64_to_virt(fp->rdbuf->data[0]);
if (fp->rdbuf_size == 0) {
/* No saved buffer. Just clear the screen. */
fp->init->ccw.count = 1;
@@ -164,7 +164,7 @@ static void fs3270_save_callback(struct raw3270_request *rq, void *data)
fp = (struct fs3270 *)rq->view;
/* Correct idal buffer element 0 address. */
- fp->rdbuf->data[0] -= 5;
+ fp->rdbuf->data[0] = dma64_add(fp->rdbuf->data[0], -5);
fp->rdbuf->size += 5;
/*
@@ -202,7 +202,7 @@ static void fs3270_deactivate(struct raw3270_view *view)
* room for the TW_KR/TO_SBA/<address>/<address>/TO_IC sequence
* in the activation command.
*/
- fp->rdbuf->data[0] += 5;
+ fp->rdbuf->data[0] = dma64_add(fp->rdbuf->data[0], 5);
fp->rdbuf->size -= 5;
raw3270_request_set_idal(fp->init, fp->rdbuf);
fp->init->rescnt = 0;