commit 875cbf3e4614cfdcc7f65033e25292aec80f09c0
author AKASHI Takahiro <takahiro.akashi@linaro.org> Fri Jul 04 08:28:30 2014 +0100
committer Catalin Marinas <catalin.marinas@arm.com> Thu Jul 10 11:06:00 2014 +0100
tree 08fdfc968a42afb6b67ddd13fe8ede7a70dbe975
parent 5701ede884c2221e6ebbb54aec83dc433287bc50

arm64: Add audit support

On AArch64, audit is supported through generic lib/audit.c and
compat_audit.c, and so this patch adds arch specific definitions required.

Acked-by Will Deacon <will.deacon@arm.com>
Acked-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/include/asm/syscall.h

diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h
index 383771e..709a574 100644
--- a/arch/arm64/include/asm/syscall.h
+++ b/arch/arm64/include/asm/syscall.h
@@ -16,6 +16,8 @@
 #ifndef __ASM_SYSCALL_H
 #define __ASM_SYSCALL_H
 
+#include <uapi/linux/audit.h>
+#include <linux/compat.h>
 #include <linux/err.h>
 
 extern const void *sys_call_table[];
@@ -105,4 +107,16 @@
 	memcpy(&regs->regs[i], args, n * sizeof(args[0]));
 }
 
+/*
+ * We don't care about endianness (__AUDIT_ARCH_LE bit) here because
+ * AArch64 has the same system calls both on little- and big- endian.
+ */
+static inline int syscall_get_arch(void)
+{
+	if (is_compat_task())
+		return AUDIT_ARCH_ARM;
+
+	return AUDIT_ARCH_AARCH64;
+}
+
 #endif	/* __ASM_SYSCALL_H */