path: root/kernel
diff options
authorMark Brown <broonie@kernel.org>2020-09-14 16:34:07 +0100
committerWill Deacon <will@kernel.org>2020-09-18 14:24:16 +0100
commit264c03a245de7c5b1cc3836db45de6b991f877ca (patch)
tree91a27560607ce90fdd00e9bb46485a79975bf0c3 /kernel
parentf75aef392f869018f78cfedf3c320a6b3fcfda6b (diff)
stacktrace: Remove reliable argument from arch_stack_walk() callback
Currently the callback passed to arch_stack_walk() has an argument called reliable passed to it to indicate if the stack entry is reliable, a comment says that this is used by some printk() consumers. However in the current kernel none of the arch_stack_walk() implementations ever set this flag to true and the only callback implementation we have is in the generic stacktrace code which ignores the flag. It therefore appears that this flag is redundant so we can simplify and clarify things by removing it. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Link: https://lore.kernel.org/r/20200914153409.25097-2-broonie@kernel.org Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'kernel')
1 files changed, 3 insertions, 5 deletions
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 946f44a9e86a..9f8117c7cfdd 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -78,8 +78,7 @@ struct stacktrace_cookie {
unsigned int len;
-static bool stack_trace_consume_entry(void *cookie, unsigned long addr,
- bool reliable)
+static bool stack_trace_consume_entry(void *cookie, unsigned long addr)
struct stacktrace_cookie *c = cookie;
@@ -94,12 +93,11 @@ static bool stack_trace_consume_entry(void *cookie, unsigned long addr,
return c->len < c->size;
-static bool stack_trace_consume_entry_nosched(void *cookie, unsigned long addr,
- bool reliable)
+static bool stack_trace_consume_entry_nosched(void *cookie, unsigned long addr)
if (in_sched_functions(addr))
return true;
- return stack_trace_consume_entry(cookie, addr, reliable);
+ return stack_trace_consume_entry(cookie, addr);

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