linux-kernel - [PATCH] ipc/ipc_sysctl: Add missing include of linux/cred.h

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Date:   Fri, 30 Sep 2022 12:49:42 -0500
From:   "Eric W. Biederman" <ebiederm@...ssion.com>
To:     Alexey Gladkov <legion@...nel.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, kernel test robot <lkp@...el.com>
Subject: [PATCH] ipc/ipc_sysctl: Add missing include of linux/cred.h


The kernel test robot recently reported[1][2] that in configurations
without CONFIG_COMPAT set the recent changes to ipc_permissions would
result in code that would not compile, as definitions present in
linux/cred.h were missing.

Include linux/cred.h explicitly in ipc/ipc_sysctl.c so that it builds
in all kernel configurations.

[1] https://lkml.kernel.org/r/202209301555.UK7B8MPo-lkp@intel.com
[2] https://lkml.kernel.org/r/202209301537.wYdDBROB-lkp@intel.com
Reported-by: kernel test robot <lkp@...el.com>
Fixes: 54e1011bd95a ("sysctl: Allow change system v ipc sysctls inside ipc namespace")
Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
---

I have corrected the build error by adding the following patch
to the topic branch.

 ipc/ipc_sysctl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index 31282e0a630d..29c1d3ae2a5c 100644
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -14,6 +14,7 @@
 #include <linux/ipc_namespace.h>
 #include <linux/msg.h>
 #include <linux/slab.h>
+#include <linux/cred.h>
 #include "util.h"
 
 static int proc_ipc_dointvec_minmax_orphans(struct ctl_table *table, int write,
-- 
2.35.3

Eric