linux-kernel - Re: [PATCH v2 2/8] file2alias: fix uuid

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Message-ID: <Zv8bkoJA5oDIe6If@surfacebook.localdomain>
Date: Fri, 4 Oct 2024 01:32:50 +0300
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Daniel Gomez <da.gomez@...sung.com>
Cc: Masahiro Yamada <masahiroy@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nicolas@...sle.eu>,
	Lucas De Marchi <lucas.demarchi@...el.com>,
	Thomas Hellström <thomas.hellstrom@...ux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@...el.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	William Hubbs <w.d.hubbs@...il.com>,
	Chris Brannon <chris@...-brannons.com>,
	Kirk Reiser <kirk@...sers.ca>,
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	Bill Wendling <morbo@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>,
	Simona Vetter <simona.vetter@...ll.ch>,
	linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
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	Finn Behrens <me@...enk.dev>,
	"Daniel Gomez (Samsung)" <d+samsung@...ces.com>,
	gost.dev@...sung.com
Subject: Re: [PATCH v2 2/8] file2alias: fix uuid_t definitions for macos

Fri, Sep 06, 2024 at 01:01:29PM +0200, Daniel Gomez kirjoitti:
> The uuid_t struct defined in sys/types.h on macOS hosts conflicts with
> the one defined in file2alias, resulting in the typedef redefinition
> error below. To resolve this conflict, define the _UUID_T and
> __GETHOSTUUID_ in file2alias HOSTCFLAGS.
> 
> Error:
>   HOSTCC  scripts/mod/file2alias.o scripts/mod/file2alias.c:45:3:
> error: typedef redefinition with different types ('struct uuid_t' vs
> '__darwin_uuid_t' (aka 'unsigned char[16]'))    45 | } uuid_t;       |
> ^
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    sys/_types/_uuid_t.h:31:25: note: previous definition is here 31 |
>    typedef __darwin_uuid_t uuid_t;    |                         ^
> scripts/mod/file2alias.c:1354:7: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1354 |
>  uuid->b[0], uuid->b[1], uuid->b[2], uuid->b[3], uuid->b[4],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~
> scripts/mod/file2alias.c:1354:19: error: member reference base
>  type 'typeof (((struct tee_client_device_id *)0)->uuid)' (aka
>  'unsigned char[16]') is not a structure or union 1354 |
>  uuid->b[0], uuid->b[1], uuid->b[2], uuid->b[3], uuid->b[4],      |
>  ~~~~^ ~
> /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include/
>    secure/_stdio.h:47:56: note: expanded from macro 'sprintf' 47 |
>    __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
>    |                                                        ^~~~~~~~~~~

Please, shrink this to the valuable ~3-5 lines. No need to repeat the same for
each case!

-- 
With Best Regards,
Andy Shevchenko