linux-kernel - [PATCH 1/4] cifs: Throw -EOPNOTSUPP error on unsupported reparse point type from parse_reparse

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Message-Id: <20241222145845.23801-2-pali@kernel.org>
Date: Sun, 22 Dec 2024 15:58:42 +0100
From: Pali Rohár <pali@...nel.org>
To: Steve French <sfrench@...ba.org>,
	Paulo Alcantara <pc@...guebit.com>,
	Ronnie Sahlberg <ronniesahlberg@...il.com>
Cc: linux-cifs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] cifs: Throw -EOPNOTSUPP error on unsupported reparse point type from parse_reparse_point()

This would help to track and detect by caller if the reparse point type was
processed or not.

Signed-off-by: Pali Rohár <pali@...nel.org>
---
 fs/smb/client/reparse.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/smb/client/reparse.c b/fs/smb/client/reparse.c
index 4ea987f84bd1..63a95ecc7542 100644
--- a/fs/smb/client/reparse.c
+++ b/fs/smb/client/reparse.c
@@ -1088,13 +1088,12 @@ int parse_reparse_point(struct reparse_data_buffer *buf,
 				 le32_to_cpu(buf->ReparseTag));
 			return -EIO;
 		}
-		break;
+		return 0;
 	default:
 		cifs_tcon_dbg(VFS | ONCE, "unhandled reparse tag: 0x%08x\n",
 			      le32_to_cpu(buf->ReparseTag));
-		break;
+		return -EOPNOTSUPP;
 	}
-	return 0;
 }
 
 int smb2_parse_reparse_point(struct cifs_sb_info *cifs_sb,
-- 
2.20.1