From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Joe Perches <joe@perches.com>,
dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org,
intel-gvt-dev@lists.freedesktop.org
Cc: Garry Hurley <garry.hurley.jr@gmail.com>,
kernel-janitors@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>,
Dan Carpenter <dan.carpenter@oracle.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>
Subject: Re: drm/i915/gvt: Use common error handling code in shadow_workload_ring_buffer()
Date: Tue, 24 Oct 2017 14:51:54 +0000 [thread overview]
Message-ID: <d92e1137-3d4c-8735-ceb4-4664a5803cdf@users.sourceforge.net> (raw)
In-Reply-To: <1508856148.1955.12.camel@perches.com>
>> … It's just that two out of three error
>> messages happened to be the same and Markus wants to save a bit of
>> memory by using the same string. The memory savings is not so big that
>> it's worth making the code less readable.
>
> I agree with Dan.
>
> It doesn't save any real memory either as the compiler/linker
> reuses the repeated string.
It might depend on passing appropriate parameters.
> It might, depending on the compiler, save a few bytes of
> object code as the compiler may not optimize the repeated
> call away though.
I am trying to show corresponding change possibilities.
> But a good compiler could do that too.
Do you prefer to delegate the proposed software refactoring
only to a corresponding optimiser?
Regards,
Markus
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next prev parent reply other threads:[~2017-10-24 14:51 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-24 12:25 [PATCH] drm/i915/gvt: Use common error handling code in shadow_workload_ring_buffer() SF Markus Elfring
2017-10-24 12:52 ` Jani Nikula
2017-10-24 13:17 ` SF Markus Elfring
2017-10-24 13:54 ` Garry Hurley
2017-10-24 14:26 ` Dan Carpenter
2017-10-24 14:40 ` SF Markus Elfring
2017-10-24 14:42 ` Joe Perches
2017-10-24 14:51 ` SF Markus Elfring [this message]
2017-10-24 14:56 ` Joe Perches
2017-10-24 15:01 ` SF Markus Elfring
2017-10-24 15:14 ` Daniele Nicolodi
2017-10-24 18:56 ` [PATCH] " Wang, Zhi A
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