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authorLinus Torvalds <torvalds@linux-foundation.org>2024-04-26 11:21:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-04-26 11:21:20 -0700
commit5b43efa158e0a972ac19c54d00600bfffb7db7f6 (patch)
treed329eaa816b05b4f956b4d7c9198c173248430be
parent08f0677dfc1a0e4648eca650be5b32f1a40e93ad (diff)
parent4b759dd5765503bd466defac7d93aca14c23a15d (diff)
Merge tag 'cxl-fixes-6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl fix from Dave Jiang: - Fix potential payload size confusion in cxl_mem_get_poison() * tag 'cxl-fixes-6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: cxl/core: Fix potential payload size confusion in cxl_mem_get_poison()
-rw-r--r--drivers/cxl/core/mbox.c38
1 files changed, 17 insertions, 21 deletions
diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c
index f0f54aeccc87..65185c9fa001 100644
--- a/drivers/cxl/core/mbox.c
+++ b/drivers/cxl/core/mbox.c
@@ -946,25 +946,22 @@ static void cxl_mem_get_records_log(struct cxl_memdev_state *mds,
struct cxl_memdev *cxlmd = mds->cxlds.cxlmd;
struct device *dev = mds->cxlds.dev;
struct cxl_get_event_payload *payload;
- struct cxl_mbox_cmd mbox_cmd;
u8 log_type = type;
u16 nr_rec;
mutex_lock(&mds->event.log_lock);
payload = mds->event.buf;
- mbox_cmd = (struct cxl_mbox_cmd) {
- .opcode = CXL_MBOX_OP_GET_EVENT_RECORD,
- .payload_in = &log_type,
- .size_in = sizeof(log_type),
- .payload_out = payload,
- .min_out = struct_size(payload, records, 0),
- };
-
do {
int rc, i;
-
- mbox_cmd.size_out = mds->payload_size;
+ struct cxl_mbox_cmd mbox_cmd = (struct cxl_mbox_cmd) {
+ .opcode = CXL_MBOX_OP_GET_EVENT_RECORD,
+ .payload_in = &log_type,
+ .size_in = sizeof(log_type),
+ .payload_out = payload,
+ .size_out = mds->payload_size,
+ .min_out = struct_size(payload, records, 0),
+ };
rc = cxl_internal_send_cmd(mds, &mbox_cmd);
if (rc) {
@@ -1297,7 +1294,6 @@ int cxl_mem_get_poison(struct cxl_memdev *cxlmd, u64 offset, u64 len,
struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds);
struct cxl_mbox_poison_out *po;
struct cxl_mbox_poison_in pi;
- struct cxl_mbox_cmd mbox_cmd;
int nr_records = 0;
int rc;
@@ -1309,16 +1305,16 @@ int cxl_mem_get_poison(struct cxl_memdev *cxlmd, u64 offset, u64 len,
pi.offset = cpu_to_le64(offset);
pi.length = cpu_to_le64(len / CXL_POISON_LEN_MULT);
- mbox_cmd = (struct cxl_mbox_cmd) {
- .opcode = CXL_MBOX_OP_GET_POISON,
- .size_in = sizeof(pi),
- .payload_in = &pi,
- .size_out = mds->payload_size,
- .payload_out = po,
- .min_out = struct_size(po, record, 0),
- };
-
do {
+ struct cxl_mbox_cmd mbox_cmd = (struct cxl_mbox_cmd){
+ .opcode = CXL_MBOX_OP_GET_POISON,
+ .size_in = sizeof(pi),
+ .payload_in = &pi,
+ .size_out = mds->payload_size,
+ .payload_out = po,
+ .min_out = struct_size(po, record, 0),
+ };
+
rc = cxl_internal_send_cmd(mds, &mbox_cmd);
if (rc)
break;