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

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Ping? Any feedback on this patch?

LGTM.

cheers,
grant

On Thu, Mar 16, 2017 at 3:26 PM, Matthias Kaehlcke <mka@xxxxxxxxxxxx> 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@xxxxxxxxxxxx>
---
 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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