linux-kernel - [PATCH] kgdb: fix gcc-11 warning on indentation

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Date:   Mon, 22 Mar 2021 17:43:03 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Jason Wessel <jason.wessel@...driver.com>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ingo Molnar <mingo@...e.hu>
Cc:     Douglas Anderson <dianders@...omium.org>,
        Christian Brauner <christian.brauner@...ntu.com>,
        kgdb-bugreport@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: [PATCH] kgdb: fix gcc-11 warning on indentation

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

gcc-11 starts warning about misleading indentation inside of macros:

drivers/misc/kgdbts.c: In function ‘kgdbts_break_test’:
drivers/misc/kgdbts.c:103:9: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation]
  103 |         if (verbose > 1) \
      |         ^~
drivers/misc/kgdbts.c:200:9: note: in expansion of macro ‘v2printk’
  200 |         v2printk("kgdbts: breakpoint complete\n");
      |         ^~~~~~~~
drivers/misc/kgdbts.c:105:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
  105 |                 touch_nmi_watchdog();   \
      |                 ^~~~~~~~~~~~~~~~~~

The code looks correct to me, so just reindent it for readability.

Fixes: e8d31c204e36 ("kgdb: add kgdb internal test suite")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/misc/kgdbts.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index 945701bce553..2e081a58da6c 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -95,19 +95,19 @@
 
 #include <asm/sections.h>
 
-#define v1printk(a...) do { \
-	if (verbose) \
-		printk(KERN_INFO a); \
-	} while (0)
-#define v2printk(a...) do { \
-	if (verbose > 1) \
-		printk(KERN_INFO a); \
-		touch_nmi_watchdog();	\
-	} while (0)
-#define eprintk(a...) do { \
-		printk(KERN_ERR a); \
-		WARN_ON(1); \
-	} while (0)
+#define v1printk(a...) do {		\
+	if (verbose)			\
+		printk(KERN_INFO a);	\
+} while (0)
+#define v2printk(a...) do {		\
+	if (verbose > 1)		\
+		printk(KERN_INFO a);	\
+	touch_nmi_watchdog();		\
+} while (0)
+#define eprintk(a...) do {		\
+	printk(KERN_ERR a);		\
+	WARN_ON(1);			\
+} while (0)
 #define MAX_CONFIG_LEN		40
 
 static struct kgdb_io kgdbts_io_ops;
-- 
2.29.2