diff mbox series

bcma: make arrays pwr_info_offset and sprom_sizes static const, shrinks object size

Message ID 20190905162049.14333-1-colin.king@canonical.com (mailing list archive)
State Accepted
Commit c57391f4157256a86c85424a16285d27ba92035c
Delegated to: Kalle Valo
Headers show
Series bcma: make arrays pwr_info_offset and sprom_sizes static const, shrinks object size | expand

Commit Message

Colin King Sept. 5, 2019, 4:20 p.m. UTC 
From: Colin Ian King <colin.king@canonical.com>

Arrays pwr_info_offset and sprom_sizes can be make static const rather
than populating them on the stack. Shrinks object size by 236 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
  11300	   1320	     64	  12684	   318c	drivers/bcma/sprom.o

After:
   text	   data	    bss	    dec	    hex	filename
  10904	   1480	     64	  12448	   30a0	drivers/bcma/sprom.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/bcma/sprom.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

Comments

Kalle Valo Sept. 13, 2019, 1:45 p.m. UTC | #1 
Colin King <colin.king@canonical.com> wrote:

> From: Colin Ian King <colin.king@canonical.com>
> 
> Arrays pwr_info_offset and sprom_sizes can be make static const rather
> than populating them on the stack. Shrinks object size by 236 bytes.
> 
> Before:
>    text	   data	    bss	    dec	    hex	filename
>   11300	   1320	     64	  12684	   318c	drivers/bcma/sprom.o
> 
> After:
>    text	   data	    bss	    dec	    hex	filename
>   10904	   1480	     64	  12448	   30a0	drivers/bcma/sprom.o
> 
> (gcc version 9.2.1, amd64)
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Patch applied to wireless-drivers-next.git, thanks.

c57391f41572 bcma: make arrays pwr_info_offset and sprom_sizes static const, shrinks object size
diff mbox series

Patch

diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c
index 206edd3ba668..bd2c923a6586 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -222,7 +222,7 @@  static void bcma_sprom_extract_r8(struct bcma_bus *bus, const u16 *sprom)
 {
 	u16 v, o;
 	int i;
-	u16 pwr_info_offset[] = {
+	static const u16 pwr_info_offset[] = {
 		SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1,
 		SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3
 	};
@@ -578,9 +578,11 @@  int bcma_sprom_get(struct bcma_bus *bus)
 {
 	u16 offset = BCMA_CC_SPROM;
 	u16 *sprom;
-	size_t sprom_sizes[] = { SSB_SPROMSIZE_WORDS_R4,
-				 SSB_SPROMSIZE_WORDS_R10,
-				 SSB_SPROMSIZE_WORDS_R11, };
+	static const size_t sprom_sizes[] = {
+		SSB_SPROMSIZE_WORDS_R4,
+		SSB_SPROMSIZE_WORDS_R10,
+		SSB_SPROMSIZE_WORDS_R11,
+	};
 	int i, err = 0;
 
 	if (!bus->drv_cc.core)