From: Josh Poimboeuf jpoimboe@redhat.com
commit aa8c7db494d0a83ecae583aa193f1134ef25d506 upstream.
Silly GCC doesn't always inline these trivial functions.
Fixes the following warning:
arch/x86/kernel/sys_ia32.o: warning: objtool: cp_stat64()+0xd8: call to new_encode_dev() with UACCESS enabled
Link: https://lkml.kernel.org/r/984353b44a4484d86ba9f73884b7306232e25e30.160873742... Signed-off-by: Josh Poimboeuf jpoimboe@redhat.com Reported-by: Randy Dunlap rdunlap@infradead.org Acked-by: Randy Dunlap rdunlap@infradead.org [build-tested] Cc: Peter Zijlstra peterz@infradead.org Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- include/linux/kdev_t.h | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-)
--- a/include/linux/kdev_t.h +++ b/include/linux/kdev_t.h @@ -20,61 +20,61 @@ })
/* acceptable for old filesystems */ -static inline bool old_valid_dev(dev_t dev) +static __always_inline bool old_valid_dev(dev_t dev) { return MAJOR(dev) < 256 && MINOR(dev) < 256; }
-static inline u16 old_encode_dev(dev_t dev) +static __always_inline u16 old_encode_dev(dev_t dev) { return (MAJOR(dev) << 8) | MINOR(dev); }
-static inline dev_t old_decode_dev(u16 val) +static __always_inline dev_t old_decode_dev(u16 val) { return MKDEV((val >> 8) & 255, val & 255); }
-static inline u32 new_encode_dev(dev_t dev) +static __always_inline u32 new_encode_dev(dev_t dev) { unsigned major = MAJOR(dev); unsigned minor = MINOR(dev); return (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12); }
-static inline dev_t new_decode_dev(u32 dev) +static __always_inline dev_t new_decode_dev(u32 dev) { unsigned major = (dev & 0xfff00) >> 8; unsigned minor = (dev & 0xff) | ((dev >> 12) & 0xfff00); return MKDEV(major, minor); }
-static inline u64 huge_encode_dev(dev_t dev) +static __always_inline u64 huge_encode_dev(dev_t dev) { return new_encode_dev(dev); }
-static inline dev_t huge_decode_dev(u64 dev) +static __always_inline dev_t huge_decode_dev(u64 dev) { return new_decode_dev(dev); }
-static inline int sysv_valid_dev(dev_t dev) +static __always_inline int sysv_valid_dev(dev_t dev) { return MAJOR(dev) < (1<<14) && MINOR(dev) < (1<<18); }
-static inline u32 sysv_encode_dev(dev_t dev) +static __always_inline u32 sysv_encode_dev(dev_t dev) { return MINOR(dev) | (MAJOR(dev) << 18); }
-static inline unsigned sysv_major(u32 dev) +static __always_inline unsigned sysv_major(u32 dev) { return (dev >> 18) & 0x3fff; }
-static inline unsigned sysv_minor(u32 dev) +static __always_inline unsigned sysv_minor(u32 dev) { return dev & 0x3ffff; }