[PATCH 1/3] mips: use __kernel_{uid,gid}32_t in uapi/asm/stat.h

From: Masahiro Yamada
Date: Wed Jun 01 2022 - 14:21:45 EST


Commit 8c1a381a4fbb ("mips: add asm/stat.h to UAPI compile-test
coverage") converted as follows:

uid_t --> __kernel_uid_t
gid_t --> __kernel_gid_t

The bit width of __kernel_{uid,gid}_t is 16 or 32-bits depending on
architectures.

MIPS uses 32-bits for them as in include/uapi/asm-generic/posix_types.h,
so the previous conversion is probably fine, but let's stick to the
arch-independent conversion just in case.

The safe replacements across all architectures are:

uid_t --> __kernel_uid32_t
gid_t --> __kernel_gid32_t

as defined in include/linux/types.h.

A similar issue was reported for the android binder. [1]

[1]: https://lore.kernel.org/all/20220601010017.2639048-1-cmllamas@xxxxxxxxxx/

Fixes: 8c1a381a4fbb ("mips: add asm/stat.h to UAPI compile-test coverage")
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---

arch/mips/include/uapi/asm/stat.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/mips/include/uapi/asm/stat.h b/arch/mips/include/uapi/asm/stat.h
index 8a8bb78883a4..aaccdc61be74 100644
--- a/arch/mips/include/uapi/asm/stat.h
+++ b/arch/mips/include/uapi/asm/stat.h
@@ -22,8 +22,8 @@ struct stat {
__kernel_ino_t st_ino;
__kernel_mode_t st_mode;
__u32 st_nlink;
- __kernel_uid_t st_uid;
- __kernel_gid_t st_gid;
+ __kernel_uid32_t st_uid;
+ __kernel_gid32_t st_gid;
unsigned st_rdev;
long st_pad2[2];
long st_size;
@@ -58,8 +58,8 @@ struct stat64 {
__kernel_mode_t st_mode;
__u32 st_nlink;

- __kernel_uid_t st_uid;
- __kernel_gid_t st_gid;
+ __kernel_uid32_t st_uid;
+ __kernel_gid32_t st_gid;

unsigned long st_rdev;
unsigned long st_pad1[3]; /* Reserved for st_rdev expansion */
@@ -99,8 +99,8 @@ struct stat {
__kernel_mode_t st_mode;
__u32 st_nlink;

- __kernel_uid_t st_uid;
- __kernel_gid_t st_gid;
+ __kernel_uid32_t st_uid;
+ __kernel_gid32_t st_gid;

unsigned int st_rdev;
unsigned int st_pad1[3]; /* Reserved for st_rdev expansion */
--
2.32.0