linux-kernel - Re: [RFC v2 01/39] Kconfig: introduce HAS_IOPORT option and select it as necessary

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Message-ID: <e01fac8a-7568-14b6-84-affc4a40c6d@linux-m68k.org>
Date:   Sun, 8 May 2022 10:15:31 +1000 (AEST)
From:   Finn Thain <fthain@...ux-m68k.org>
To:     Arnd Bergmann <arnd@...nel.org>
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Subject: Re: [RFC v2 01/39] Kconfig: introduce HAS_IOPORT option and select
 it as necessary


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.