From a2970421640bd9b6a78f2685d7750a791abdfd4e Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Mon, 22 Jul 2019 11:24:41 -0700 Subject: stacktrace: Constify 'entries' arguments Make it clear to humans and to the compiler that the stack trace ('entries') arguments are not modified. Signed-off-by: Bart Van Assche Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Waiman Long Cc: Will Deacon Link: https://lkml.kernel.org/r/20190722182443.216015-3-bvanassche@acm.org Signed-off-by: Ingo Molnar --- include/linux/stacktrace.h | 4 ++-- kernel/stacktrace.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h index f0cfd12cb45e..83bd8cb475d7 100644 --- a/include/linux/stacktrace.h +++ b/include/linux/stacktrace.h @@ -9,9 +9,9 @@ struct task_struct; struct pt_regs; #ifdef CONFIG_STACKTRACE -void stack_trace_print(unsigned long *trace, unsigned int nr_entries, +void stack_trace_print(const unsigned long *trace, unsigned int nr_entries, int spaces); -int stack_trace_snprint(char *buf, size_t size, unsigned long *entries, +int stack_trace_snprint(char *buf, size_t size, const unsigned long *entries, unsigned int nr_entries, int spaces); unsigned int stack_trace_save(unsigned long *store, unsigned int size, unsigned int skipnr); diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c index f5440abb7532..6d1f68b7e528 100644 --- a/kernel/stacktrace.c +++ b/kernel/stacktrace.c @@ -20,7 +20,7 @@ * @nr_entries: Number of entries in the storage array * @spaces: Number of leading spaces to print */ -void stack_trace_print(unsigned long *entries, unsigned int nr_entries, +void stack_trace_print(const unsigned long *entries, unsigned int nr_entries, int spaces) { unsigned int i; @@ -43,7 +43,7 @@ EXPORT_SYMBOL_GPL(stack_trace_print); * * Return: Number of bytes printed. */ -int stack_trace_snprint(char *buf, size_t size, unsigned long *entries, +int stack_trace_snprint(char *buf, size_t size, const unsigned long *entries, unsigned int nr_entries, int spaces) { unsigned int generated, i, total = 0; -- cgit