diff options
| author | Yunfeng Ye <yeyunfeng@huawei.com> | 2020-05-08 11:15:45 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-05-18 18:04:22 +0100 |
| commit | bd4298c72b56d7faf0ee3671739f3a704a962d0f (patch) | |
| tree | 674b0b0e1e51380d5a572cd13aef409c4bf7680c /arch/arm64/kernel | |
| parent | b322c65f8ca37396cfd7d4d0ac2f7f2dc08fa9eb (diff) | |
arm64: stacktrace: Factor out some common code into on_stack()
There are some common codes for stack checking, so factors it out into
the function on_stack().
No functional change.
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
Link: https://lore.kernel.org/r/07b3b0e6-3f58-4fed-07ea-7d17b7508948@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/sdei.c | 28 |
1 files changed, 2 insertions, 26 deletions
diff --git a/arch/arm64/kernel/sdei.c b/arch/arm64/kernel/sdei.c index d6259dac62b6..3afed808b474 100644 --- a/arch/arm64/kernel/sdei.c +++ b/arch/arm64/kernel/sdei.c @@ -95,19 +95,7 @@ static bool on_sdei_normal_stack(unsigned long sp, struct stack_info *info) unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_normal_ptr); unsigned long high = low + SDEI_STACK_SIZE; - if (!low) - return false; - - if (sp < low || sp >= high) - return false; - - if (info) { - info->low = low; - info->high = high; - info->type = STACK_TYPE_SDEI_NORMAL; - } - - return true; + return on_stack(sp, low, high, STACK_TYPE_SDEI_NORMAL, info); } static bool on_sdei_critical_stack(unsigned long sp, struct stack_info *info) @@ -115,19 +103,7 @@ static bool on_sdei_critical_stack(unsigned long sp, struct stack_info *info) unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_critical_ptr); unsigned long high = low + SDEI_STACK_SIZE; - if (!low) - return false; - - if (sp < low || sp >= high) - return false; - - if (info) { - info->low = low; - info->high = high; - info->type = STACK_TYPE_SDEI_CRITICAL; - } - - return true; + return on_stack(sp, low, high, STACK_TYPE_SDEI_CRITICAL, info); } bool _on_sdei_stack(unsigned long sp, struct stack_info *info) |