From: Colin King <colin.king@canonical.com>
To: David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Boris Brezillon <boris.brezillon@free-electrons.com>,
Marek Vasut <marek.vasut@gmail.com>,
Richard Weinberger <richard@nod.at>,
Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>,
linux-mtd@lists.infradead.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] mtd: mtdswap: make array 'name' static const, shrinks object size
Date: Tue, 28 Nov 2017 18:59:46 +0000 [thread overview]
Message-ID: <20171128185946.25026-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
Don't populate the read-only array 'name' on the stack but instead
make it static and constify it. Makes the object code smaller by 35
bytes:
Before:
text data bss dec hex filename
26304 4444 352 31100 797c drivers/mtd/mtdswap.o
After:
text data bss dec hex filename
26205 4508 352 31065 7959 drivers/mtd/mtdswap.o
(gcc version 7.2.0 x86_64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/mtd/mtdswap.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c
index f07492c6f4b2..7eb0e1f4f980 100644
--- a/drivers/mtd/mtdswap.c
+++ b/drivers/mtd/mtdswap.c
@@ -1223,8 +1223,9 @@ static int mtdswap_show(struct seq_file *s, void *data)
unsigned int max[MTDSWAP_TREE_CNT];
unsigned int i, cw = 0, cwp = 0, cwecount = 0, bb_cnt, mapped, pages;
uint64_t use_size;
- char *name[] = {"clean", "used", "low", "high", "dirty", "bitflip",
- "failing"};
+ static const char * const name[] = {
+ "clean", "used", "low", "high", "dirty", "bitflip", "failing"
+ };
mutex_lock(&d->mbd_dev->lock);
--
2.14.1
next reply other threads:[~2017-11-28 19:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-28 18:59 Colin King [this message]
2017-12-18 16:21 ` [PATCH] mtd: mtdswap: make array 'name' static const, shrinks object size Boris Brezillon
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