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authorMichael Ellerman <mpe@ellerman.id.au>2019-01-15 09:37:28 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2019-01-15 13:32:25 +0300
commit7bea7ac0ca0121798f3618d16201ca4dc4e67a00 (patch)
treefc166d08a64574689855a093760a9c7c9447fc45 /arch
parentda727097a482a93645ba5beea8d389ebab11fc64 (diff)
downloadlinux-7bea7ac0ca0121798f3618d16201ca4dc4e67a00.tar.xz
powerpc/syscalls: Fix syscall tracing
Recently in commit fbf508da7440 ("powerpc: split compat syscall table out from native table") we changed the layout of the system call table. Instead of having two entries for each syscall number, one for the regular entry point and one for the compat entry point, we now have separate tables for regular and compat entry points. This inadvertently broke syscall tracing (CONFIG_FTRACE_SYSCALLS), because our implementation of arch_syscall_addr() knew about the layout of the table (it did nr * 2). We can fix it just by dropping our version of arch_syscall_addr() and using the generic version which does: return (unsigned long)sys_call_table[nr]; Fixes: fbf508da7440 ("powerpc: split compat syscall table out from native table") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/trace/ftrace.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/trace/ftrace.c b/arch/powerpc/kernel/trace/ftrace.c
index 29746dc28df5..517662a56bdc 100644
--- a/arch/powerpc/kernel/trace/ftrace.c
+++ b/arch/powerpc/kernel/trace/ftrace.c
@@ -967,13 +967,6 @@ out:
}
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
-#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_PPC64)
-unsigned long __init arch_syscall_addr(int nr)
-{
- return sys_call_table[nr*2];
-}
-#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_PPC64 */
-
#ifdef PPC64_ELF_ABI_v1
char *arch_ftrace_match_adjust(char *str, const char *search)
{