linux-kernel - [PATCH v1 7/7] lib/vsprintf: Mark expected switch fall-through

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Date:   Fri, 16 Feb 2018 21:28:06 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     "Tobin C. Harding" <me@...in.cc>, linux@...musvillemoes.dk,
        Petr Mladek <pmladek@...e.com>, Joe Perches <joe@...ches.com>,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 7/7] lib/vsprintf: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 lib/vsprintf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 20c0ab9faba5..bf0c45788100 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -2094,6 +2094,7 @@ int format_decode(const char *fmt, struct printf_spec *spec)
 
 	case 'x':
 		spec->flags |= SMALL;
+		/* fall through */
 
 	case 'X':
 		spec->base = 16;
@@ -3048,8 +3049,10 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
 			break;
 		case 'i':
 			base = 0;
+			/* fall through */
 		case 'd':
 			is_sign = true;
+			/* fall through */
 		case 'u':
 			break;
 		case '%':
-- 
2.15.1