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From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Leon Romanovsky <leon@kernel.org>,
	Dennis Dalessandro <dennis.dalessandro@intel.com>,
	Doug Ledford <dledford@redhat.com>,
	linux-rdma@vger.kernel.org
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>,
	Sean Hefty <sean.hefty@intel.com>,
	Yishai Hadas <yishaih@mellanox.com>,
	Yuval Shaia <yuval.shaia@oracle.com>,
	LKML <linux-kernel@vger.kernel.org>,
	kernel-janitors@vger.kernel.org
Subject: Re: IB/mlx4: Use common error handling code in __mlx4_ib_create_flow()
Date: Mon, 30 Oct 2017 09:04:36 +0100	[thread overview]
Message-ID: <e2febce9-4b80-a40e-024e-5c24964301ac@users.sourceforge.net> (raw)
In-Reply-To: <20171027193601.GI16127@mtr-leonro.local>

>>> I mean you aren't really making the code any smaller
>>
>> Would anybody like to check corresponding effects in more detail
>> after a specific function call was replaced by a goto statement?
> 
> You are supposed to do it and not "anybody".

I can offer another bit of information for this software development discussion.

The following build settings were active in my “Makefile” for this Linux test case.

…
HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O0 -fomit-frame-pointer -std=gnu89
…


The affected source file can be compiled for the processor architecture “x86_64”
by a tool like “GCC 6.4.1+r251631-1.3” from the software distribution
“openSUSE Tumbleweed” with the following command example.

my_cc=/usr/bin/gcc-6 \
&& my_module=drivers/infiniband/hw/mlx4/main.o \
&& git checkout next-20171009 \
&& make -j4 CC="${my_cc}" HOSTCC="${my_cc}" allmodconfig "${my_module}" \
&& size "${my_module}" \
&& git checkout next_fine-tuning_in_mlx4_1 \
&& make -j4 CC="${my_cc}" HOSTCC="${my_cc}" allmodconfig "${my_module}" \
&& size "${my_module}"


Do you find the following details useful for further clarification?

text: -32
data: 0
bss:  0

Regards,
Markus

  reply	other threads:[~2017-10-30  8:05 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-26 16:12 [PATCH] IB/mlx4: Use common error handling code in __mlx4_ib_create_flow() SF Markus Elfring
2017-10-27  0:33 ` Dennis Dalessandro
2017-10-27  7:34   ` SF Markus Elfring
2017-10-27 19:36     ` Leon Romanovsky
2017-10-30  8:04       ` SF Markus Elfring [this message]
2017-10-30  8:34         ` Leon Romanovsky
2017-10-30  8:47           ` SF Markus Elfring
2017-10-27 19:44   ` [PATCH] " Leon Romanovsky
2017-10-27 19:39 ` Leon Romanovsky
2017-10-27 20:53   ` SF Markus Elfring
2017-10-27 21:54     ` Dennis Dalessandro
2017-10-28  7:39       ` SF Markus Elfring

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