linux-kernel - Re: [PATCH] tools/bootconfig: Fix a build error accroding to undefined fallthrough

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Date:   Thu, 20 May 2021 11:47:13 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
CC:     LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH] tools/bootconfig: Fix a build error accroding to undefined fallthrough

Yeah, I have it cued up too. Can it wait till next week?

--Steve


On May 20, 2021 10:07:38 AM EDT, Masami Hiramatsu <mhiramat@...nel.org> wrote:
>Hi Steve,
>
>Can you pick at least this fix since it is a critical bug?
>
>Thank you,
>
>On Thu, 13 May 2021 12:06:33 +0900
>Masami Hiramatsu <mhiramat@...nel.org> wrote:
>
>> Since the "fallthrough" is defined only in the kernel, building
>> lib/bootconfig.c as a part of user-space tools causes a build
>> error.
>> 
>> Add a dummy fallthrough to avoid the build error.
>> 
>> Cc: stable@...r.kernel.org
>> Fixes: 4c1ca831adb1 ("Revert "lib: Revert use of fallthrough
>pseudo-keyword in lib/"")
>> Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
>> ---
>>  tools/bootconfig/include/linux/bootconfig.h |    4 ++++
>>  1 file changed, 4 insertions(+)
>> 
>> diff --git a/tools/bootconfig/include/linux/bootconfig.h
>b/tools/bootconfig/include/linux/bootconfig.h
>> index 078cbd2ba651..de7f30f99af3 100644
>> --- a/tools/bootconfig/include/linux/bootconfig.h
>> +++ b/tools/bootconfig/include/linux/bootconfig.h
>> @@ -4,4 +4,8 @@
>>  
>>  #include "../../../../include/linux/bootconfig.h"
>>  
>> +#ifndef fallthrough
>> +# define fallthrough
>> +#endif
>> +
>>  #endif
>> 

-- 
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