2019-01-14 20:23:20

by Mathieu Malaterre

Subject: [PATCH] lib/cmdline.c:: annotate implicit fall throughs

There is a plan to build the kernel with -Wimplicit-fallthrough and
these places in the code produced warnings (W=1). Fix them up.

This commit remove the following warnings:

lib/cmdline.c:137:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/cmdline.c:140:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/cmdline.c:143:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/cmdline.c:146:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
lib/cmdline.c:149:7: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Mathieu Malaterre <[email protected]>
---
lib/cmdline.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/lib/cmdline.c b/lib/cmdline.c
index 171c19b6888e..dc59d6216318 100644
--- a/lib/cmdline.c
+++ b/lib/cmdline.c
@@ -135,18 +135,23 @@ unsigned long long memparse(const char *ptr, char **retptr)
case 'E':
case 'e':
ret <<= 10;
+ /* fall through */
case 'P':
case 'p':
ret <<= 10;
+ /* fall through */
case 'T':
case 't':
ret <<= 10;
+ /* fall through */
case 'G':
case 'g':
ret <<= 10;
+ /* fall through */
case 'M':
case 'm':
ret <<= 10;
+ /* fall through */
case 'K':
case 'k':
ret <<= 10;
--
2.19.2

2019-01-14 21:08:52

by Gustavo A. R. Silva

Subject: Re: [PATCH] lib/cmdline.c:: annotate implicit fall throughs

On 1/14/19 2:21 PM, Mathieu Malaterre wrote:
> There is a plan to build the kernel with -Wimplicit-fallthrough and
> these places in the code produced warnings (W=1). Fix them up.
>
> This commit remove the following warnings:
>
> lib/cmdline.c:137:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
> lib/cmdline.c:140:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
> lib/cmdline.c:143:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
> lib/cmdline.c:146:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
> lib/cmdline.c:149:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
>
> Signed-off-by: Mathieu Malaterre <[email protected]>

Acked-by: Gustavo A. R. Silva <[email protected]>

> ---
> lib/cmdline.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/lib/cmdline.c b/lib/cmdline.c
> index 171c19b6888e..dc59d6216318 100644
> --- a/lib/cmdline.c
> +++ b/lib/cmdline.c
> @@ -135,18 +135,23 @@ unsigned long long memparse(const char *ptr, char **retptr)
> case 'E':
> case 'e':
> ret <<= 10;
> + /* fall through */
> case 'P':
> case 'p':
> ret <<= 10;
> + /* fall through */
> case 'T':
> case 't':
> ret <<= 10;
> + /* fall through */
> case 'G':
> case 'g':
> ret <<= 10;
> + /* fall through */
> case 'M':
> case 'm':
> ret <<= 10;
> + /* fall through */
> case 'K':
> case 'k':
> ret <<= 10;
>