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From: Petr Mladek <pmladek@suse.com>
To: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
	live-patching@vger.kernel.org,
	Nicholas Piggin <npiggin@gmail.com>,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	Song Liu <song@kernel.org>
Subject: Re: [PATCH 1/2] powerpc/module_64: Improve restore_r2() return semantics
Date: Wed, 25 Jan 2023 14:24:50 +0100	[thread overview]
Message-ID: <Y9EtohjVnoJLqccx@alley> (raw)
In-Reply-To: <15baf76c271a0ae09f7b8556e50f2b4251e7049d.1674617130.git.jpoimboe@kernel.org>

On Tue 2023-01-24 19:38:04, Josh Poimboeuf wrote:
> restore_r2() returns 1 on success, which is surprising for a non-boolean
> function.  Change it to return 0 on success and -errno on error to match
> kernel coding convention.
> 
> Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>

Looks good:

Reviewed-by: Petr Mladek <pmladek@suse.com>

It is in the right direction. Just note that there are more functions
with the boolean semantic passed via int return value. But there
are also other functions already using the 0/-E* return values so
this is rather positive change.

Best Regards,
Petr

WARNING: multiple messages have this Message-ID (diff)
From: Petr Mladek <pmladek@suse.com>
To: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: linux-kernel@vger.kernel.org, Song Liu <song@kernel.org>,
	Nicholas Piggin <npiggin@gmail.com>,
	live-patching@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 1/2] powerpc/module_64: Improve restore_r2() return semantics
Date: Wed, 25 Jan 2023 14:24:50 +0100	[thread overview]
Message-ID: <Y9EtohjVnoJLqccx@alley> (raw)
In-Reply-To: <15baf76c271a0ae09f7b8556e50f2b4251e7049d.1674617130.git.jpoimboe@kernel.org>

On Tue 2023-01-24 19:38:04, Josh Poimboeuf wrote:
> restore_r2() returns 1 on success, which is surprising for a non-boolean
> function.  Change it to return 0 on success and -errno on error to match
> kernel coding convention.
> 
> Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>

Looks good:

Reviewed-by: Petr Mladek <pmladek@suse.com>

It is in the right direction. Just note that there are more functions
with the boolean semantic passed via int return value. But there
are also other functions already using the 0/-E* return values so
this is rather positive change.

Best Regards,
Petr

  parent reply	other threads:[~2023-01-25 13:24 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-25  3:38 [PATCH 0/2] powerpc: Fix livepatch module re-patching issue Josh Poimboeuf
2023-01-25  3:38 ` Josh Poimboeuf
2023-01-25  3:38 ` [PATCH 1/2] powerpc/module_64: Improve restore_r2() return semantics Josh Poimboeuf
2023-01-25  3:38   ` Josh Poimboeuf
2023-01-25  5:53   ` Song Liu
2023-01-25  5:53     ` Song Liu
2023-01-25 13:24   ` Petr Mladek [this message]
2023-01-25 13:24     ` Petr Mladek
2023-01-27 12:38   ` Miroslav Benes
2023-01-27 12:38     ` Miroslav Benes
2023-01-25  3:38 ` [PATCH 2/2] powerpc/module_64: Fix "expected nop" error on module re-patching Josh Poimboeuf
2023-01-25  3:38   ` Josh Poimboeuf
2023-01-25  6:09   ` Song Liu
2023-01-25  6:09     ` Song Liu
2023-01-25 16:46     ` Josh Poimboeuf
2023-01-25 16:46       ` Josh Poimboeuf
2023-01-25 17:36       ` Song Liu
2023-01-25 17:36         ` Song Liu
2023-01-25 18:53         ` Josh Poimboeuf
2023-01-25 18:58           ` Song Liu
2023-01-25 13:31   ` Petr Mladek
2023-01-25 13:31     ` Petr Mladek
2023-01-27 12:50   ` Miroslav Benes
2023-01-27 12:50     ` Miroslav Benes
2023-01-27 13:48 ` [PATCH 0/2] powerpc: Fix livepatch module re-patching issue Joe Lawrence
2023-01-27 13:48   ` Joe Lawrence
2023-02-04 17:23 ` Josh Poimboeuf
2023-02-04 17:23   ` Josh Poimboeuf
2023-02-05  0:46   ` Michael Ellerman
2023-02-05  0:46     ` Michael Ellerman
2023-02-05 16:21     ` Josh Poimboeuf
2023-02-05 16:21       ` Josh Poimboeuf
2023-02-05  0:46 ` Michael Ellerman
2023-02-05  0:46   ` Michael Ellerman

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