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authorChristophe Leroy <christophe.leroy@csgroup.eu>2021-02-08 15:10:29 +0000
committerMichael Ellerman <mpe@ellerman.id.au>2021-02-11 23:35:10 +1100
commit72b7a9e56b25babfe4c90bf3ce88285c7fb62ab9 (patch)
tree76714e5cc9b811390df7a6934120307f56aa0e96 /arch/powerpc/kernel/interrupt.c
parent344bb20b159dd0996e521c0d4c131a6ae10c322a (diff)
downloadlinux-72b7a9e56b25babfe4c90bf3ce88285c7fb62ab9.tar.bz2
powerpc/syscall: Use is_compat_task()
Instead of hard comparing task flags with _TIF_32BIT, use is_compat_task(). The advantage is that it returns 0 on PPC32 allthough _TIF_32BIT is always set. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/c8094662199337a7200fea9f6e1d1f8b1b6d5f69.1612796617.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/interrupt.c')
-rw-r--r--arch/powerpc/kernel/interrupt.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c
index 2dac4d2bb1cf..46fd195ca659 100644
--- a/arch/powerpc/kernel/interrupt.c
+++ b/arch/powerpc/kernel/interrupt.c
@@ -2,6 +2,8 @@
#include <linux/context_tracking.h>
#include <linux/err.h>
+#include <linux/compat.h>
+
#include <asm/asm-prototypes.h>
#include <asm/kup.h>
#include <asm/cputime.h>
@@ -118,7 +120,7 @@ notrace long system_call_exception(long r3, long r4, long r5,
/* May be faster to do array_index_nospec? */
barrier_nospec();
- if (unlikely(is_32bit_task())) {
+ if (unlikely(is_compat_task())) {
f = (void *)compat_sys_call_table[r0];
r3 &= 0x00000000ffffffffULL;