On Tue, May 29, 2018 at 2:21 AM, Masahiro Yamada
wrote:
> 2018-05-28 18:44 GMT+09:00 Ramon Fried :
>> Add WARN_ONCE definition to allow single time notification
>> of warnings to the user.
>>
>> Signed-off-by: Ramon Fried
>> ---
>> include/linux/bug.h | 18 ++
>> 1 file changed, 18 insertions(+)
>>
>> diff --git a/include/linux/bug.h b/include/linux/bug.h
>> index f07bb716fc0..67b6057a22a 100644
>> --- a/include/linux/bug.h
>> +++ b/include/linux/bug.h
>> @@ -20,6 +20,13 @@
>> unlikely(__ret_warn_on);\
>> })
>>
>> +#define WARN(condition, format...) ({ \
>> + int __ret_warn_on = !!(condition); \
>> + if (unlikely(__ret_warn_on))\
>> + __WARN_printf(format); \
>
>
> Where is __WARN_printf() defined?
>
Ohhh. thanks for noticing. I pushed the wrong file.
I'm pushing a fix shortly.
>
>
>
>> + unlikely(__ret_warn_on);\
>> +})
>> +
>> #define WARN_ON_ONCE(condition)({ \
>> static bool __warned; \
>> int __ret_warn_once = !!(condition);\
>> @@ -31,4 +38,15 @@
>> unlikely(__ret_warn_once); \
>> })
>>
>> +#define WARN_ONCE(condition, format...) ({ \
>> + static bool __warned; \
>> + int __ret_warn_once = !!(condition);\
>> + \
>> + if (unlikely(__ret_warn_once && !__warned)) { \
>> + __warned = true;\
>> + WARN(1, format);\
>> + } \
>> + unlikely(__ret_warn_once); \
>> +})
>> +
>> #endif /* _LINUX_BUG_H */
>> --
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
>> a Linux Foundation Collaborative Project
>>
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>
>
>
> --
> Best Regards
> Masahiro Yamada
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