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Date:   Sun, 8 May 2022 10:15:31 +1000 (AEST)
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Subject: Re: [RFC v2 01/39] Kconfig: introduce HAS_IOPORT option and select
 it as necessary
In-Reply-To: <6f33385-5612-7042-e1b3-aa32895e91e0@linux-m68k.org>
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References: <20220505195342.GA509942@bhelgaas> <22bec167-241f-2cbe-829f-a3f65e40e71@linux-m68k.org> <105ccec439f709846e82b69cb854ac825d7a6a49.camel@linux.ibm.com> <7dfa7578-039-e132-c573-ad89bd3215@linux-m68k.org> <CAK8P3a3tds8O+Gg2nF3MfrVVcmtLbtdQ2TnCJaDYz28cyhhWkg@mail.gmail.com>
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On Sun, 8 May 2022, I wrote:

> 
> That suggests to me that we need a "bool CONFIG_WARINGS_INTO_ERRORS" to 
> control -Werror, which could be disabled for .config files (like make 
> allmodconfig) where it is not helping.
> 

I just noticed that we already have CONFIG_WERROR. So perhaps something 
like this would help.

diff --git a/init/Kconfig b/init/Kconfig
index ddcbefe535e9..765d83fb148e 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -150,6 +150,8 @@ config WERROR
 
 	  However, if you have a new (or very old) compiler with odd and
 	  unusual warnings, or you have some architecture with problems,
+	  or if you are using a compiler that doesn't happen to interpret
+	  the C standards in quite the same way as some other compilers,
 	  you may need to disable this config option in order to
 	  successfully build the kernel.