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| author | Jiri Kosina <jkosina@suse.cz> | 2017-05-02 11:02:41 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2017-05-02 11:02:41 +0200 |
| commit | 4d6ca227c768b50b05cf183974b40abe444e9d0c (patch) | |
| tree | bf953d8e895281053548b9967a2c4b58d641df00 /arch/powerpc/kernel/hw_breakpoint.c | |
| parent | Merge branch 'for-4.12/sony' into for-linus (diff) | |
| parent | HID: asus: support backlight on USB keyboards (diff) | |
| download | linux-4d6ca227c768b50b05cf183974b40abe444e9d0c.tar.xz linux-4d6ca227c768b50b05cf183974b40abe444e9d0c.zip | |
Merge branch 'for-4.12/asus' into for-linus
Diffstat (limited to 'arch/powerpc/kernel/hw_breakpoint.c')
| -rw-r--r-- | arch/powerpc/kernel/hw_breakpoint.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/hw_breakpoint.c b/arch/powerpc/kernel/hw_breakpoint.c index 4d3aa05e28be..53b9c1dfd7d9 100644 --- a/arch/powerpc/kernel/hw_breakpoint.c +++ b/arch/powerpc/kernel/hw_breakpoint.c @@ -211,9 +211,11 @@ int hw_breakpoint_handler(struct die_args *args) int rc = NOTIFY_STOP; struct perf_event *bp; struct pt_regs *regs = args->regs; +#ifndef CONFIG_PPC_8xx int stepped = 1; - struct arch_hw_breakpoint *info; unsigned int instr; +#endif + struct arch_hw_breakpoint *info; unsigned long dar = regs->dar; /* Disable breakpoints during exception handling */ @@ -228,8 +230,10 @@ int hw_breakpoint_handler(struct die_args *args) rcu_read_lock(); bp = __this_cpu_read(bp_per_reg); - if (!bp) + if (!bp) { + rc = NOTIFY_DONE; goto out; + } info = counter_arch_bp(bp); /* @@ -255,6 +259,7 @@ int hw_breakpoint_handler(struct die_args *args) (dar - bp->attr.bp_addr < bp->attr.bp_len))) info->type |= HW_BRK_TYPE_EXTRANEOUS_IRQ; +#ifndef CONFIG_PPC_8xx /* Do not emulate user-space instructions, instead single-step them */ if (user_mode(regs)) { current->thread.last_hit_ubp = bp; @@ -278,6 +283,7 @@ int hw_breakpoint_handler(struct die_args *args) perf_event_disable_inatomic(bp); goto out; } +#endif /* * As a policy, the callback is invoked in a 'trigger-after-execute' * fashion |