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| author |   Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-08-12 12:25:17 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-09-08 22:23:22 +1000 |
| commit | 2f279eeb68b8eda43a95255db701b4faaeedbe0f (patch) | |
| tree | 0d301df048480c641c7f09993e270865794fd66f /arch/powerpc/include/asm/uaccess.h | |
| parent | powerpc/uaccess: Use flexible addressing with __put_user()/__get_user() (diff) | |
| download | linux-dev-2f279eeb68b8eda43a95255db701b4faaeedbe0f.tar.xz linux-dev-2f279eeb68b8eda43a95255db701b4faaeedbe0f.zip | |
powerpc/uaccess: Add pre-update addressing to __get_user_asm() and __put_user_asm()
Enable pre-update addressing mode in __get_user_asm() and __put_user_asm()
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/13041c7df39e89ddf574ea0cdc6dedfdd9734140.1597235091.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/uaccess.h')
| -rw-r--r-- | arch/powerpc/include/asm/uaccess.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h index b1d5e8b66b31..7c2427f237e1 100644 --- a/arch/powerpc/include/asm/uaccess.h +++ b/arch/powerpc/include/asm/uaccess.h @@ -158,7 +158,7 @@ extern long __put_user_bad(void); */ #define __put_user_asm(x, addr, err, op) \ __asm__ __volatile__( \ - "1: " op "%X2 %1,%2 # put_user\n" \ + "1: " op "%U2%X2 %1,%2 # put_user\n" \ "2:\n" \ ".section .fixup,\"ax\"\n" \ "3: li %0,%3\n" \ @@ -166,7 +166,7 @@ extern long __put_user_bad(void); ".previous\n" \ EX_TABLE(1b, 3b) \ : "=r" (err) \ - : "r" (x), "m" (*addr), "i" (-EFAULT), "0" (err)) + : "r" (x), "m<>" (*addr), "i" (-EFAULT), "0" (err)) #ifdef __powerpc64__ #define __put_user_asm2(x, ptr, retval) \ @@ -316,7 +316,7 @@ extern long __get_user_bad(void); #define __get_user_asm(x, addr, err, op) \ __asm__ __volatile__( \ - "1: "op"%X2 %1, %2 # get_user\n" \ + "1: "op"%U2%X2 %1, %2 # get_user\n" \ "2:\n" \ ".section .fixup,\"ax\"\n" \ "3: li %0,%3\n" \ @@ -325,7 +325,7 @@ extern long __get_user_bad(void); ".previous\n" \ EX_TABLE(1b, 3b) \ : "=r" (err), "=r" (x) \ - : "m" (*addr), "i" (-EFAULT), "0" (err)) + : "m<>" (*addr), "i" (-EFAULT), "0" (err)) #ifdef __powerpc64__ #define __get_user_asm2(x, addr, err) \ |