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[PATCH] mwifiex: make const array tos_to_ac static, reduces object code size

Started byColin King <colin.king@canonical.com>
First post2017-09-19 23:10 +0200
Last post2017-09-25 10:30 +0200
Articles 2 — 2 participants

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  [PATCH] mwifiex: make const array tos_to_ac static, reduces object code size Colin King <colin.king@canonical.com> - 2017-09-19 23:10 +0200
    Re: mwifiex: make const array tos_to_ac static,  reduces object code size Kalle Valo <kvalo@codeaurora.org> - 2017-09-25 10:30 +0200

#1735264 — [PATCH] mwifiex: make const array tos_to_ac static, reduces object code size

FromColin King <colin.king@canonical.com>
Date2017-09-19 23:10 +0200
Subject[PATCH] mwifiex: make const array tos_to_ac static, reduces object code size
Message-ID<urxWh-251-9@gated-at.bofh.it>
From: Colin Ian King <colin.king@canonical.com>

Don't populate the read-only const array tos_to_ac on the stack,
instead make it static. Makes the object code smaller by 250 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  26104	   2720	    128	  28952	   7118	wmm.o

After:
   text	   data	    bss	    dec	    hex	filename
  25758	   2816	    128	  28702	   701e	wmm.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/net/wireless/marvell/mwifiex/wmm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/wmm.c b/drivers/net/wireless/marvell/mwifiex/wmm.c
index 0edd26881321..936a0a841af8 100644
--- a/drivers/net/wireless/marvell/mwifiex/wmm.c
+++ b/drivers/net/wireless/marvell/mwifiex/wmm.c
@@ -359,7 +359,8 @@ static enum mwifiex_wmm_ac_e
 mwifiex_wmm_convert_tos_to_ac(struct mwifiex_adapter *adapter, u32 tos)
 {
 	/* Map of TOS UP values to WMM AC */
-	const enum mwifiex_wmm_ac_e tos_to_ac[] = { WMM_AC_BE,
+	static const enum mwifiex_wmm_ac_e tos_to_ac[] = {
+		WMM_AC_BE,
 		WMM_AC_BK,
 		WMM_AC_BK,
 		WMM_AC_BE,
-- 
2.14.1

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#1738818 — Re: mwifiex: make const array tos_to_ac static, reduces object code size

FromKalle Valo <kvalo@codeaurora.org>
Date2017-09-25 10:30 +0200
SubjectRe: mwifiex: make const array tos_to_ac static, reduces object code size
Message-ID<utwW5-3OI-11@gated-at.bofh.it>
In reply to#1735264
Colin Ian King <colin.king@canonical.com> wrote:

> From: Colin Ian King <colin.king@canonical.com>
> 
> Don't populate the read-only const array tos_to_ac on the stack,
> instead make it static. Makes the object code smaller by 250 bytes:
> 
> Before:
>    text	   data	    bss	    dec	    hex	filename
>   26104	   2720	    128	  28952	   7118	wmm.o
> 
> After:
>    text	   data	    bss	    dec	    hex	filename
>   25758	   2816	    128	  28702	   701e	wmm.o
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

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

7dfb0ebd022b mwifiex: make const array tos_to_ac static, reduces object code size

-- 
https://patchwork.kernel.org/patch/9960331/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

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