From: Colin King <colin.king@canonical.com>
To: 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: [PATCH 2/2] rtlwifi: rtl8192de: make arrays static const, makes object smaller
Date: Sat, 31 Jul 2021 13:40:44 +0100 [thread overview]
Message-ID: <20210731124044.101927-2-colin.king@canonical.com> (raw)
In-Reply-To: <20210731124044.101927-1-colin.king@canonical.com>
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.
Before:
text data bss dec hex filename
128211 44250 1024 173485 2a5ad ../realtek/rtlwifi/rtl8192de/phy.o
After:
text data bss dec hex filename
127199 44410 1024 172633 2a259 ../realtek/rtlwifi/rtl8192de/phy.o
(gcc version 10.2.0)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
index 4eaa40d73baf..79956254f798 100644
--- 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,
--
2.31.1
next prev parent reply other threads:[~2021-07-31 12:40 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 ` Colin King [this message]
2021-08-02 8:04 ` [PATCH 2/2] rtlwifi: rtl8192de: make arrays static const, makes object smaller Pkshih
2021-08-02 8:35 ` Joe Perches
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
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