LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Joe Perches <joe@perches.com>
To: Colin King <colin.king@canonical.com>,
	Ping-Ke Shih <pkshih@realtek.com>,
	Kalle Valo <kvalo@codeaurora.org>,
	"David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] rtlwifi: rtl8192de:  make arrays static const, makes object smaller
Date: Mon, 02 Aug 2021 01:35:46 -0700	[thread overview]
Message-ID: <e96786f5772f8ed01ab3153e0d5d66820b2e920a.camel@perches.com> (raw)
In-Reply-To: <20210731124044.101927-2-colin.king@canonical.com>

On Sat, 2021-07-31 at 13:40 +0100, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> Don't populate arrays the stack but instead make them static const
> Makes the object code smaller by 852 bytes.
[]
> diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
[]
> @@ -1354,7 +1354,7 @@ static void _rtl92d_phy_switch_rf_setting(struct ieee80211_hw *hw, u8 channel)
>  
> 
>  u8 rtl92d_get_rightchnlplace_for_iqk(u8 chnl)
>  {
> -	u8 channel_all[59] = {
> +	static const u8 channel_all[59] = {
>  		1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
>  		36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58,
>  		60, 62, 64, 100, 102, 104, 106, 108, 110, 112,
> @@ -3220,7 +3220,7 @@ void rtl92d_phy_config_macphymode_info(struct ieee80211_hw *hw)
>  u8 rtl92d_get_chnlgroup_fromarray(u8 chnl)
>  {
>  	u8 group;
> -	u8 channel_info[59] = {
> +	static const u8 channel_info[59] = {
>  		1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
>  		36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56,
>  		58, 60, 62, 64, 100, 102, 104, 106, 108,

These two arrays (channel_info and channel_all) are identical but
laid out differently and could be combined and use a single name.



  parent reply	other threads:[~2021-08-02  8:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-31 12:40 [PATCH 1/2] rtlwifi: rtl8192de: Remove redundant variable initializations Colin King
2021-07-31 12:40 ` [PATCH 2/2] rtlwifi: rtl8192de: make arrays static const, makes object smaller Colin King
2021-08-02  8:04   ` Pkshih
2021-08-02  8:35   ` Joe Perches [this message]
2021-08-03 14:03     ` Colin Ian King
2021-08-02  8:04 ` [PATCH 1/2] rtlwifi: rtl8192de: Remove redundant variable initializations Pkshih
2021-08-02  8:35 ` Joe Perches
2021-08-03 14:03   ` Colin Ian King

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=e96786f5772f8ed01ab3153e0d5d66820b2e920a.camel@perches.com \
    --to=joe@perches.com \
    --cc=colin.king@canonical.com \
    --cc=davem@davemloft.net \
    --cc=kernel-janitors@vger.kernel.org \
    --cc=kuba@kernel.org \
    --cc=kvalo@codeaurora.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=pkshih@realtek.com \
    --subject='Re: [PATCH 2/2] rtlwifi: rtl8192de:  make arrays static const, makes object smaller' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).