From: Bart Van Assche <bvanassche@acm.org>
To: John Garry <john.garry@huawei.com>,
jejb@linux.vnet.ibm.com, martin.petersen@oracle.com
Cc: linuxarm@huawei.com, linux-kernel@vger.kernel.org,
linux-scsi@vger.kernel.org
Subject: Re: [PATCH] scsi: sd: Make protection lookup tables static
Date: Mon, 07 Jan 2019 08:57:23 -0800 [thread overview]
Message-ID: <1546880243.83374.12.camel@acm.org> (raw)
In-Reply-To: <1546872111-5627-1-git-send-email-john.garry@huawei.com>
On Mon, 2019-01-07 at 22:41 +0800, John Garry wrote:
> Currently the protection lookup tables in sd_prot_flag_mask() and
> sd_prot_op() are declared non-static. As such, they will be rebuilt for
> each respective function call.
>
> Optimise by making them static.
>
> This saves ~100B object code for sd.c:
>
> Before:
> text data bss dec hex filename
> 25403 1024 16 26443 674b drivers/scsi/sd.o
>
> After:
> text data bss dec hex filename
> 25299 1024 16 26339 66e3 drivers/scsi/sd.o
Since the sd_prot_op() function only has a single caller, please move it from sd.h
into sd.c.
Thanks,
Bart.
next prev parent reply other threads:[~2019-01-07 16:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-07 14:41 [PATCH] scsi: sd: Make protection lookup tables static John Garry
2019-01-07 16:57 ` Bart Van Assche [this message]
2019-01-07 17:27 ` John Garry
2019-01-07 17:33 ` Bart Van Assche
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