From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alexey Khoroshilov <khoroshilov@ispras.ru>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, ldv-project@linuxtesting.org
Subject: Re: Is iounmap(NULL) safe or not?
Date: Sat, 06 May 2017 09:47:26 +0200 [thread overview]
Message-ID: <1494056846.25766.420.camel@kernel.crashing.org> (raw)
In-Reply-To: <1494024608-10343-1-git-send-email-khoroshilov@ispras.ru>
On Sat, 2017-05-06 at 01:50 +0300, Alexey Khoroshilov wrote:
> Could you please clarify if iounmap(NULL) safe or not.
> I guess it would be less errorprone if the answer is architecture independent.
I think it's supposed to be and we should fix ppc.
Cheers,
Ben.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alexey Khoroshilov <khoroshilov@ispras.ru>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, ldv-project@linuxtesting.org
Subject: Re: Is iounmap(NULL) safe or not?
Date: Sat, 06 May 2017 09:47:26 +0200 [thread overview]
Message-ID: <1494056846.25766.420.camel@kernel.crashing.org> (raw)
In-Reply-To: <1494024608-10343-1-git-send-email-khoroshilov@ispras.ru>
On Sat, 2017-05-06 at 01:50 +0300, Alexey Khoroshilov wrote:
> Could you please clarify if iounmap(NULL) safe or not.
> I guess it would be less errorprone if the answer is architecture independent.
I think it's supposed to be and we should fix ppc.
Cheers,
Ben.
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next prev parent reply other threads:[~2017-05-06 7:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-05 22:50 Is iounmap(NULL) safe or not? Alexey Khoroshilov
2017-05-05 22:50 ` Alexey Khoroshilov
2017-05-06 7:47 ` Benjamin Herrenschmidt [this message]
2017-05-06 7:47 ` Benjamin Herrenschmidt
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