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authorWill Deacon <will.deacon@arm.com>2014-06-02 11:47:29 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2014-06-18 12:41:09 +0100
commit34c65c43f1518bf85f93526ad373adc6a683b4c5 (patch)
tree2905578f17e2f92b9dc217bddd9421998c0e3d6b /arch/arm64/include/uapi
parentc168870704bcde6bb63d05f7882b620dd3985a46 (diff)
downloadlinux-34c65c43f1518bf85f93526ad373adc6a683b4c5.tar.gz
arm64: uid16: fix __kernel_old_{gid,uid}_t definitions
Whilst native arm64 applications don't have the 16-bit UID/GID syscalls wired up, compat tasks can still access them. The 16-bit wrappers for these syscalls use __kernel_old_uid_t and __kernel_old_gid_t, which must be 16-bit data types to maintain compatibility with the 16-bit UIDs used by compat applications. This patch defines 16-bit __kernel_old_{gid,uid}_t types for arm64 instead of using the 32-bit types provided by asm-generic. Signed-off-by: Will Deacon <will.deacon@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: <stable@vger.kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/uapi')
-rw-r--r--arch/arm64/include/uapi/asm/posix_types.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/posix_types.h b/arch/arm64/include/uapi/asm/posix_types.h
new file mode 100644
index 000000000000..7985ff60ca3f
--- /dev/null
+++ b/arch/arm64/include/uapi/asm/posix_types.h
@@ -0,0 +1,10 @@
+#ifndef __ASM_POSIX_TYPES_H
+#define __ASM_POSIX_TYPES_H
+
+typedef unsigned short __kernel_old_uid_t;
+typedef unsigned short __kernel_old_gid_t;
+#define __kernel_old_uid_t __kernel_old_uid_t
+
+#include <asm-generic/posix_types.h>
+
+#endif /* __ASM_POSIX_TYPES_H */