| Message ID | 20240403131936.787234-3-linux@roeck-us.net (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support for suppressing warning backtraces | expand |
On Wed, 3 Apr 2024 at 21:19, Guenter Roeck <linux@roeck-us.net> wrote: > > Count suppressed warning backtraces to enable code which suppresses > warning backtraces to check if the expected backtrace(s) have been > observed. > > Using atomics for the backtrace count resulted in build errors on some > architectures due to include file recursion, so use a plain integer > for now. > > Acked-by: Dan Carpenter <dan.carpenter@linaro.org> > Reviewed-by: Kees Cook <keescook@chromium.org> > Tested-by: Linux Kernel Functional Testing <lkft@linaro.org> > Signed-off-by: Guenter Roeck <linux@roeck-us.net> > --- Looks good to me, thanks. Reviewed-by: David Gow <davidgow@google.com> Cheers, -- David > v2: > - Rebased to v6.9-rc1 > - Added Tested-by:, Acked-by:, and Reviewed-by: tags > - Introduced KUNIT_SUPPRESS_BACKTRACE configuration option > v3: > - Rebased to v6.9-rc2 > > include/kunit/bug.h | 7 ++++++- > lib/kunit/bug.c | 4 +++- > 2 files changed, 9 insertions(+), 2 deletions(-) > > diff --git a/include/kunit/bug.h b/include/kunit/bug.h > index bd0fe047572b..72e9fb23bbd5 100644 > --- a/include/kunit/bug.h > +++ b/include/kunit/bug.h > @@ -20,6 +20,7 @@ > struct __suppressed_warning { > struct list_head node; > const char *function; > + int counter; > }; > > void __start_suppress_warning(struct __suppressed_warning *warning); > @@ -28,7 +29,7 @@ bool __is_suppressed_warning(const char *function); > > #define DEFINE_SUPPRESSED_WARNING(func) \ > struct __suppressed_warning __kunit_suppress_##func = \ > - { .function = __stringify(func) } > + { .function = __stringify(func), .counter = 0 } > > #define START_SUPPRESSED_WARNING(func) \ > __start_suppress_warning(&__kunit_suppress_##func) > @@ -39,12 +40,16 @@ bool __is_suppressed_warning(const char *function); > #define IS_SUPPRESSED_WARNING(func) \ > __is_suppressed_warning(func) > > +#define SUPPRESSED_WARNING_COUNT(func) \ > + (__kunit_suppress_##func.counter) > + > #else /* CONFIG_KUNIT_SUPPRESS_BACKTRACE */ > > #define DEFINE_SUPPRESSED_WARNING(func) > #define START_SUPPRESSED_WARNING(func) > #define END_SUPPRESSED_WARNING(func) > #define IS_SUPPRESSED_WARNING(func) (false) > +#define SUPPRESSED_WARNING_COUNT(func) (0) > > #endif /* CONFIG_KUNIT_SUPPRESS_BACKTRACE */ > #endif /* __ASSEMBLY__ */ > diff --git a/lib/kunit/bug.c b/lib/kunit/bug.c > index f93544d7a9d1..13b3d896c114 100644 > --- a/lib/kunit/bug.c > +++ b/lib/kunit/bug.c > @@ -32,8 +32,10 @@ bool __is_suppressed_warning(const char *function) > return false; > > list_for_each_entry(warning, &suppressed_warnings, node) { > - if (!strcmp(function, warning->function)) > + if (!strcmp(function, warning->function)) { > + warning->counter++; > return true; > + } > } > return false; > } > -- > 2.39.2 > > -- > You received this message because you are subscribed to the Google Groups "KUnit Development" group. > To unsubscribe from this group and stop receiving emails from it, send an email to kunit-dev+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/kunit-dev/20240403131936.787234-3-linux%40roeck-us.net.
diff --git a/include/kunit/bug.h b/include/kunit/bug.h index bd0fe047572b..72e9fb23bbd5 100644 --- a/include/kunit/bug.h +++ b/include/kunit/bug.h @@ -20,6 +20,7 @@ struct __suppressed_warning { struct list_head node; const char *function; + int counter; }; void __start_suppress_warning(struct __suppressed_warning *warning); @@ -28,7 +29,7 @@ bool __is_suppressed_warning(const char *function); #define DEFINE_SUPPRESSED_WARNING(func) \ struct __suppressed_warning __kunit_suppress_##func = \ - { .function = __stringify(func) } + { .function = __stringify(func), .counter = 0 } #define START_SUPPRESSED_WARNING(func) \ __start_suppress_warning(&__kunit_suppress_##func) @@ -39,12 +40,16 @@ bool __is_suppressed_warning(const char *function); #define IS_SUPPRESSED_WARNING(func) \ __is_suppressed_warning(func) +#define SUPPRESSED_WARNING_COUNT(func) \ + (__kunit_suppress_##func.counter) + #else /* CONFIG_KUNIT_SUPPRESS_BACKTRACE */ #define DEFINE_SUPPRESSED_WARNING(func) #define START_SUPPRESSED_WARNING(func) #define END_SUPPRESSED_WARNING(func) #define IS_SUPPRESSED_WARNING(func) (false) +#define SUPPRESSED_WARNING_COUNT(func) (0) #endif /* CONFIG_KUNIT_SUPPRESS_BACKTRACE */ #endif /* __ASSEMBLY__ */ diff --git a/lib/kunit/bug.c b/lib/kunit/bug.c index f93544d7a9d1..13b3d896c114 100644 --- a/lib/kunit/bug.c +++ b/lib/kunit/bug.c @@ -32,8 +32,10 @@ bool __is_suppressed_warning(const char *function) return false; list_for_each_entry(warning, &suppressed_warnings, node) { - if (!strcmp(function, warning->function)) + if (!strcmp(function, warning->function)) { + warning->counter++; return true; + } } return false; }