linux-kernel - [PATCH] target: pscsi: avoid Wempty-body warning

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Date:   Mon, 22 Mar 2021 12:44:34 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     "Martin K. Petersen" <martin.petersen@...cle.com>
Cc:     Arnd Bergmann <arnd@...db.de>, Jens Axboe <axboe@...nel.dk>,
        Chaitanya Kulkarni <chaitanya.kulkarni@....com>,
        Hannes Reinecke <hare@...e.de>,
        Bodo Stroesser <bstroesser@...fujitsu.com>,
        "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        Guoqing Jiang <guoqing.jiang@...ud.ionos.com>,
        linux-scsi@...r.kernel.org, target-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] target: pscsi: avoid Wempty-body warning

From: Arnd Bergmann <arnd@...db.de>

Building with 'make W=1' shows a harmless warning for pscsi:

drivers/target/target_core_pscsi.c: In function 'pscsi_complete_cmd':
drivers/target/target_core_pscsi.c:624:33: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
  624 |                                 ; /* XXX: TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE */
      |                                 ^

Rework the coding style as suggested by gcc to avoid the warning.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/target/target_core_pscsi.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 3cbc074992bc..913b092955f6 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -620,8 +620,9 @@ static void pscsi_complete_cmd(struct se_cmd *cmd, u8 scsi_status,
 			unsigned char *buf;
 
 			buf = transport_kmap_data_sg(cmd);
-			if (!buf)
-				; /* XXX: TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE */
+			if (!buf) {
+				/* XXX: TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE */
+			}
 
 			if (cdb[0] == MODE_SENSE_10) {
 				if (!(buf[3] & 0x80))
-- 
2.29.2