From: Sujit Reddy Thumma <sthumma@xxxxxxxxxxxxxx>
Fix many warnings with incorrect endian assumptions
which makes the code unportable to new architectures.
The UFS specification defines the byte order as big-endian
for UPIU structure and little-endian for the host controller
transfer/task management descriptors.
Signed-off-by: Sujit Reddy Thumma <sthumma@xxxxxxxxxxxxxx>
Signed-off-by: Dolev Raviv <draviv@xxxxxxxxxxxxxx>
---
drivers/scsi/ufs/ufshcd.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index a450407..ba27215 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -464,7 +464,8 @@ int ufshcd_copy_query_response(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
/* data segment length */
resp_len = be32_to_cpu(lrbp->ucd_rsp_ptr->header.dword_2) &
MASK_QUERY_DATA_SEG_LEN;
- buf_len = hba->dev_cmd.query.request.upiu_req.length;
+ buf_len = be16_to_cpu(
+ hba->dev_cmd.query.request.upiu_req.length);
if (likely(buf_len >= resp_len)) {
memcpy(hba->dev_cmd.query.descriptor, descp, resp_len);
} else {
@@ -1342,7 +1343,7 @@ static int ufshcd_query_descriptor(struct ufs_hba *hba,
ufshcd_init_query(hba, &request, &response, opcode, idn, index,
selector);
hba->dev_cmd.query.descriptor = desc_buf;
- request->upiu_req.length = *buf_len;
+ request->upiu_req.length = cpu_to_be16(*buf_len);
switch (opcode) {
case UPIU_QUERY_OPCODE_WRITE_DESC:
@@ -1368,7 +1369,7 @@ static int ufshcd_query_descriptor(struct ufs_hba *hba,
}
hba->dev_cmd.query.descriptor = NULL;
- *buf_len = response->upiu_res.length;
+ *buf_len = be16_to_cpu(response->upiu_res.length);
out_unlock:
mutex_unlock(&hba->dev_cmd.lock);
--
1.8.5.2
--
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