linux/drivers/mtd/chips
Julia Lawall a63be500c6 mtd: cfi_cmdset_0020: Drop unnecessary static
Drop static on a local variable, when the variable is initialized before
any use on every possible execution path through the function.  The static
has no benefit, and dropping it reduces the code size.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@bad exists@
position p;
identifier x;
type T;
@@

static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@

-static
 T x@p;
 ... when != x
     when strict
?x = e;
// </smpl>

The change in code size is indicates by the following output from the size
command.

before:
   text    data     bss     dec     hex filename
  16671      48      16   16735    415f drivers/mtd/chips/cfi_cmdset_0020.o

after:
   text    data     bss     dec     hex filename
  16639      48       8   16695    4137 drivers/mtd/chips/cfi_cmdset_0020.o

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2017-05-11 11:49:20 -07:00
..
Kconfig mtd: avoid stack overflow in MTD CFI code 2016-04-03 16:46:24 -07:00
Makefile [MTD] [CHIPS] Remove MTD_OBSOLETE_CHIPS (jedec, amd_flash, sharp) 2007-05-09 13:34:37 +01:00
cfi_cmdset_0001.c mtd: cfi_cmdset_0001: fixing memory leak and handling failed kmalloc 2016-01-06 17:23:10 -08:00
cfi_cmdset_0002.c drivers/mtd: Convert remaining uses of pr_warning to pr_warn 2017-04-19 13:10:54 -07:00
cfi_cmdset_0020.c mtd: cfi_cmdset_0020: Drop unnecessary static 2017-05-11 11:49:20 -07:00
cfi_probe.c mtd: cfi: Remove unnecessary OOM messages 2014-03-10 22:42:25 -07:00
cfi_util.c mtd: cfi: deinline large functions 2015-05-27 12:42:16 -07:00
chipreg.c mtd: simplify return logic in do_map_probe() 2012-03-27 00:35:06 +01:00
fwh_lock.h mtd: add leading underscore to all mtd functions 2012-03-27 00:20:01 +01:00
gen_probe.c mtd: gen_probe: Remove unnecessary OOM messages 2014-03-10 22:42:25 -07:00
jedec_probe.c mtd: jedec_probe: fix LH28F640BF definition 2013-08-05 21:04:17 +01:00
map_absent.c mtd: remove retlen zeroing duplication 2012-03-27 00:29:34 +01:00
map_ram.c mtd: map_ram: Enable mtdoops 2015-01-09 15:31:56 -08:00
map_rom.c mtd: map_rom: Support UBI on ROM 2015-01-09 23:24:27 -08:00