RE: [PATCH 1/3] lib/string_helpers: Consolidate yesno() implementation

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Subject: RE: [PATCH 1/3] lib/string_helpers: Consolidate yesno() implementation
From: David Laight <David.Laight@xxxxxxxxxx>
Date: Wed, 19 Jan 2022 22:25:00 +0000
Accept-language: en-GB, en-US
Cc: Emma Anholt <emma@xxxxxxxxxxxxxxxxxx>, David Airlie <airlied@xxxxxxxx>, "nouveau@xxxxxxxxxxxxxxxxxxxxx" <nouveau@xxxxxxxxxxxxxxxxxxxxx>, Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>, "dri-devel@xxxxxxxxxxxxxxxxxxxxx" <dri-devel@xxxxxxxxxxxxxxxxxxxxx>, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>, Vishal Kulkarni <vishal@xxxxxxxxxxx>, Francis Laniel <laniel_francis@xxxxxxxxxxxxxxxxxxx>, Kentaro Takeda <takedakn@xxxxxxxxxxxxx>, "amd-gfx@xxxxxxxxxxxxxxxxxxxxx" <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>, Ben Skeggs <bskeggs@xxxxxxxxxx>, Jakub Kicinski <kuba@xxxxxxxxxx>, Petr Mladek <pmladek@xxxxxxxx>, Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>, Leo Li <sunpeng.li@xxxxxxx>, "intel-gfx@xxxxxxxxxxxxxxxxxxxxx" <intel-gfx@xxxxxxxxxxxxxxxxxxxxx>, Raju Rangoju <rajur@xxxxxxxxxxx>, Lucas De Marchi <lucas.demarchi@xxxxxxxxx>, "'Steven Rostedt'" <rostedt@xxxxxxxxxxx>, Julia Lawall <julia.lawall@xxxxxxx>, Rahul Lakkireddy <rahul.lakkireddy@xxxxxxxxxxx>, Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>, Mikita Lipski <mikita.lipski@xxxxxxx>, Eryk Brol <eryk.brol@xxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Christian König <christian.koenig@xxxxxxx>, Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>, "linux-security-module@xxxxxxxxxxxxxxx" <linux-security-module@xxxxxxxxxxxxxxx>, "netdev@xxxxxxxxxxxxxxx" <netdev@xxxxxxxxxxxxxxx>, Alex Deucher <alexander.deucher@xxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, "David S . Miller" <davem@xxxxxxxxxxxxx>
In-reply-to: <YehlEe1prbwhxZEv@smile.fi.intel.com>
References: <20220119072450.2890107-1-lucas.demarchi@intel.com> <20220119072450.2890107-2-lucas.demarchi@intel.com> <CAHp75Vf5QOD_UtDK8VbxNApEBuJvzUic0NkzDNmRo3Q7Ud+=qw@mail.gmail.com> <20220119100102.61f9bfde@gandalf.local.home> <06420a70f4434c2b8590cc89cad0dd6a@AcuMS.aculab.com> <9c26ca9bf75d494ea966059d9bcbc2b5@AcuMS.aculab.com> <YehlEe1prbwhxZEv@smile.fi.intel.com>

> > except '"no\0\0yes" + v * 4' works a bit better.
> 
> Is it a C code obfuscation contest?

That would be:
	return &(v * 3)["no\0yes"];

:-)

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References:
- [PATCH 0/3] lib/string_helpers: Add a few string helpers
  - From: Lucas De Marchi
- [PATCH 1/3] lib/string_helpers: Consolidate yesno() implementation
  - From: Lucas De Marchi
- Re: [PATCH 1/3] lib/string_helpers: Consolidate yesno() implementation
  - From: Andy Shevchenko
- Re: [PATCH 1/3] lib/string_helpers: Consolidate yesno() implementation
  - From: Steven Rostedt
- RE: [PATCH 1/3] lib/string_helpers: Consolidate yesno() implementation
  - From: David Laight
- RE: [PATCH 1/3] lib/string_helpers: Consolidate yesno() implementation
  - From: David Laight
- Re: [PATCH 1/3] lib/string_helpers: Consolidate yesno() implementation
  - From: Andy Shevchenko

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