[tip: core/entry] seccomp: Provide stub for __secure_computing()

[tip-bot2 for Thomas Gleixner]

The following commit has been merged into the core/entry branch of tip:

Commit-ID:     6823ecabf03031d610a6c5afe7ed4b4fd659a99f
Gitweb:        https://git.kernel.org/tip/6823ecabf03031d610a6c5afe7ed4b4fd659a99f
Author:        Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate:    Wed, 22 Jul 2020 23:59:55 +02:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Fri, 24 Jul 2020 14:59:03 +02:00

seccomp: Provide stub for __secure_computing()

To avoid #ifdeffery in the upcoming generic syscall entry work code provide
a stub for __secure_computing() as this is preferred over
secure_computing() because the TIF flag is already evaluated.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/20200722220519.404974280@xxxxxxxxxxxxx


---
 include/linux/seccomp.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h
index 4192369..03d28c3 100644
--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -61,6 +61,7 @@ struct seccomp_filter { };
 
 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
 static inline int secure_computing(void) { return 0; }
+static inline int __secure_computing(void) { return 0; }
 #else
 static inline void secure_computing_strict(int this_syscall) { return; }
 #endif