[PATCH] selinux: Remove unnecessary check of array base in selinux_set_mapping()

[Grant Grundler]

[resending as plain text only - sorry]

Ping? Any feedback on this patch?

LGTM.

cheers,
grant

On Thu, Mar 16, 2017 at 3:26 PM, Matthias Kaehlcke <mka at chromium.org> wrote:
> 'perms' will never be NULL since it isn't a plain pointer but an array
> of u32 values.
>
> This fixes the following warning when building with clang:
>
> security/selinux/ss/services.c:158:16: error: address of array
> 'p_in->perms' will always evaluate to 'true'
> [-Werror,-Wpointer-bool-conversion]
>                 while (p_in->perms && p_in->perms[k]) {
>
> Signed-off-by: Matthias Kaehlcke <mka at chromium.org>
> ---
>  security/selinux/ss/services.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
> index 082b20c78363..2f20b5f974f4 100644
> --- a/security/selinux/ss/services.c
> +++ b/security/selinux/ss/services.c
> @@ -155,7 +155,7 @@ static int selinux_set_mapping(struct policydb *pol,
>                 }
>
>                 k = 0;
> -               while (p_in->perms && p_in->perms[k]) {
> +               while (p_in->perms[k]) {
>                         /* An empty permission string skips ahead */
>                         if (!*p_in->perms[k]) {
>                                 k++;
> --
> 2.12.0.367.g23dc2f6d3c-goog
>
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