The former is just a nice macro and the latter allows runtime analysis of the allocation and its size.
Signed-off-by: Rosen Penev <[email protected]> --- fs/smb/server/transport_ipc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/smb/server/transport_ipc.c b/fs/smb/server/transport_ipc.c index 2dbabe2d8005..f7aa427a06fe 100644 --- a/fs/smb/server/transport_ipc.c +++ b/fs/smb/server/transport_ipc.c @@ -55,7 +55,7 @@ static bool ksmbd_ipc_validate_version(struct genl_info *m) struct ksmbd_ipc_msg { unsigned int type; unsigned int sz; - unsigned char payload[]; + unsigned char payload[] __counted_by(sz); }; struct ipc_msg_table_entry { @@ -242,9 +242,8 @@ static void ipc_update_last_active(void) static struct ksmbd_ipc_msg *ipc_msg_alloc(size_t sz) { struct ksmbd_ipc_msg *msg; - size_t msg_sz = sz + sizeof(struct ksmbd_ipc_msg); - msg = kvzalloc(msg_sz, KSMBD_DEFAULT_GFP); + msg = kvzalloc_flex(*msg, payload, sz, KSMBD_DEFAULT_GFP); if (msg) msg->sz = sz; return msg; -- 2.53.0
