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| author |   Vasily Gorbik <gor@linux.ibm.com> | 2019-11-22 12:35:34 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2019-11-30 10:52:45 +0100 |
| commit | 103b4cca60d2c8c51f1290cc984b7046ccb8b46d (patch) | |
| tree | 505c6574f045baadc36ddc70154e3a433a45a2e9 /arch/s390/kernel/dumpstack.c | |
| parent | s390: disable preemption when switching to nodat stack with CALL_ON_STACK (diff) | |
| download | linux-dev-103b4cca60d2c8c51f1290cc984b7046ccb8b46d.tar.xz linux-dev-103b4cca60d2c8c51f1290cc984b7046ccb8b46d.zip | |
s390/unwind: unify task is current checks
Avoid mixture of task == NULL and task == current meaning the same
thing and simply always initialize task with current in unwind_start.
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/dumpstack.c')
| -rw-r--r-- | arch/s390/kernel/dumpstack.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c index 34bdc60c0b11..fc442aec0d96 100644 --- a/arch/s390/kernel/dumpstack.c +++ b/arch/s390/kernel/dumpstack.c @@ -93,8 +93,6 @@ int get_stack_info(unsigned long sp, struct task_struct *task, if (!sp) goto unknown; - task = task ? : current; - /* Check per-task stack */ if (in_task_stack(sp, task, info)) goto recursion_check; @@ -128,8 +126,6 @@ void show_stack(struct task_struct *task, unsigned long *stack) struct unwind_state state; printk("Call Trace:\n"); - if (!task) - task = current; unwind_for_each_frame(&state, task, NULL, (unsigned long) stack) printk(state.reliable ? " [<%016lx>] %pSR \n" : "([<%016lx>] %pSR)\n", |