Re: [PATCH] media: staging: rkisp1: rsz: make const array static, makes object smaller

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi, thanks,

Am 20.10.20 um 16:46 schrieb Colin King:
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Don't populate the const array dev_names on the stack but instead it
static. Makes the object code smaller by 15 bytes.

Before:
    text	   data	    bss	    dec	    hex	filename
   17091	   2648	     64	  19803	   4d5b	media/rkisp1/rkisp1-resizer.o

After:
    text	   data	    bss	    dec	    hex	filename
   17012	   2712	     64	  19788	   4d4c	media/rkisp1/rkisp1-resizer.o

On the other hand the data segment is 64 bytes bigger.
I don't know what is more important to save.
Anyway, the rkisp1-capture.c does the same with the names
so it is better to be consistent.

Thanks,
Dafna


(gcc version 10.2.0)

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
  drivers/staging/media/rkisp1/rkisp1-resizer.c | 6 ++++--
  1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/rkisp1/rkisp1-resizer.c b/drivers/staging/media/rkisp1/rkisp1-resizer.c
index 1687d82e6c68..7ca5b47c5bf5 100644
--- a/drivers/staging/media/rkisp1/rkisp1-resizer.c
+++ b/drivers/staging/media/rkisp1/rkisp1-resizer.c
@@ -763,8 +763,10 @@ static void rkisp1_rsz_unregister(struct rkisp1_resizer *rsz)
static int rkisp1_rsz_register(struct rkisp1_resizer *rsz)
  {
-	const char * const dev_names[] = {RKISP1_RSZ_MP_DEV_NAME,
-					  RKISP1_RSZ_SP_DEV_NAME};
+	static const char * const dev_names[] = {
+		RKISP1_RSZ_MP_DEV_NAME,
+		RKISP1_RSZ_SP_DEV_NAME
+	};
  	struct media_pad *pads = rsz->pads;
  	struct v4l2_subdev *sd = &rsz->sd;
  	int ret;

_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel



[Index of Archives]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux