ksmbd: replace KSMBD_SHARE_CONFIG_PATH with inline function

mainline inclusion
from mainline-5.15-rc1
commit 3fbe43c9
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I60T7G
CVE: NA

Reference: https://git.kernel.org/torvalds/linux/c/3fbe43c9f577

-------------------------------

replace KSMBD_SHARE_CONFIG_PATH with inline function.
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NNamjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: NSteve French <stfrench@microsoft.com>
Signed-off-by: NJason Yan <yanaijie@huawei.com>
Signed-off-by: NZhong Jinghua <zhongjinghua@huawei.com>

fs/cifsd/ksmbd_server.h

@@ -90,13 +90,17 @@ struct ksmbd_share_config_response {
 };
 
 #define KSMBD_SHARE_CONFIG_VETO_LIST(s)	((s)->____payload)
-#define KSMBD_SHARE_CONFIG_PATH(s)				\
-	({							\
-		char *p = (s)->____payload;			\
-		if ((s)->veto_list_sz)				\
-			p += (s)->veto_list_sz + 1;		\
-		p;						\
-	 })
+
+static inline char *
+ksmbd_share_config_path(struct ksmbd_share_config_response *sc)
+{
+	char *p = sc->____payload;
+
+	if (sc->veto_list_sz)
+		p += sc->veto_list_sz + 1;
+
+	return p;
+}
 
 struct ksmbd_tree_connect_request {
 	__u32	handle;

fs/cifsd/mgmt/share_config.c

@@ -139,7 +139,7 @@ static struct ksmbd_share_config *share_config_request(char *name)
 	share->name = kstrdup(name, GFP_KERNEL);
 
 	if (!test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) {
-		share->path = kstrdup(KSMBD_SHARE_CONFIG_PATH(resp),
+		share->path = kstrdup(ksmbd_share_config_path(resp),
 				      GFP_KERNEL);
 		if (share->path)
 			share->path_sz = strlen(share->path);