linux-kernel - [PATCH 4.18 065/123] lib/vsprintf: Do not handle %pO[^F] as %px

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Date:   Mon,  3 Sep 2018 18:56:49 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Bart Van Assche <bart.vanassche@....com>,
        Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
        Joe Perches <joe@...ches.com>, Rob Herring <robh@...nel.org>,
        Petr Mladek <pmladek@...e.com>
Subject: [PATCH 4.18 065/123] lib/vsprintf: Do not handle %pO[^F] as %px

4.18-stable review patch.  If anyone has any objections, please let me know.

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

From: Bart Van Assche <bart.vanassche@....com>

commit 554ec508653688c21d9b8024af73a1ffaa0164b9 upstream.

This patch avoids that gcc reports the following when building with W=1:

lib/vsprintf.c:1941:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   switch (fmt[1]) {
   ^~~~~~

Fixes: 7b1924a1d930eb2 ("vsprintf: add printk specifier %px")
Link: http://lkml.kernel.org/r/20180806223421.11995-1-bart.vanassche@wdc.com
Cc: linux-kernel@...r.kernel.org
Cc: Bart Van Assche <bart.vanassche@....com>
Cc: Pantelis Antoniou <pantelis.antoniou@...sulko.com>
Cc: Joe Perches <joe@...ches.com>
Cc: Rob Herring <robh@...nel.org>
Cc: v4.15+ <stable@...r.kernel.org>
Signed-off-by: Bart Van Assche <bart.vanassche@....com>
Signed-off-by: Petr Mladek <pmladek@...e.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 lib/vsprintf.c |    1 +
 1 file changed, 1 insertion(+)

--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1942,6 +1942,7 @@ char *pointer(const char *fmt, char *buf
 		case 'F':
 			return device_node_string(buf, end, ptr, spec, fmt + 1);
 		}
+		break;
 	case 'x':
 		return pointer_string(buf, end, ptr, spec);
 	}