| Message ID | 2c3f3d8d8b2f7dcb8cc64cebe89e55720d1d733d.1747500351.git.christophe.jaillet@wanadoo.fr |
|---|---|
| State | New |
| Headers | show |
| Series | wifi: rtlwifi: Constify struct rtl_hal_ops and rtl_hal_cfg | expand |
Christophe JAILLET <christophe.jaillet@wanadoo.fr> wrote: > 'struct rtl_hal_ops' and 'struct rtl_hal_cfg' are not modified in these > drivers. > > Constifying this structure moves some data to a read-only section, so > increase overall security, especially when the structure holds some > function pointers. > > Constification of rtl_hal_cfg is only needed in rtl8192cu/sw.c > > On a x86_64, with allmodconfig, as an example: > Before: > ====== > text data bss dec hex filename > 10167 5512 128 15807 3dbf drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.o > > After: > ===== > text data bss dec hex filename > 10743 4936 128 15807 3dbf drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.o > > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> 1 patch(es) applied to rtw-next branch of rtw.git, thanks. 4c95423b6f01 wifi: rtlwifi: Constify struct rtl_hal_ops and rtl_hal_cfg --- https://github.com/pkshih/rtw.git
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c index 2ad4523d1bef..79c6e0901e57 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c @@ -190,7 +190,7 @@ static bool rtl88e_get_btc_status(void) return false; } -static struct rtl_hal_ops rtl8188ee_hal_ops = { +static const struct rtl_hal_ops rtl8188ee_hal_ops = { .init_sw_vars = rtl88e_init_sw_vars, .deinit_sw_vars = rtl88e_deinit_sw_vars, .read_eeprom_info = rtl88ee_read_eeprom_info, diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c index ce7c28d9c874..f06b159f975d 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c @@ -167,7 +167,7 @@ static void rtl92c_deinit_sw_vars(struct ieee80211_hw *hw) } } -static struct rtl_hal_ops rtl8192ce_hal_ops = { +static const struct rtl_hal_ops rtl8192ce_hal_ops = { .init_sw_vars = rtl92c_init_sw_vars, .deinit_sw_vars = rtl92c_deinit_sw_vars, .read_eeprom_info = rtl92ce_read_eeprom_info, diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c index c9b9e2bc90cc..00a6778df704 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c @@ -81,7 +81,7 @@ static bool rtl92cu_get_btc_status(void) return false; } -static struct rtl_hal_ops rtl8192cu_hal_ops = { +static const struct rtl_hal_ops rtl8192cu_hal_ops = { .init_sw_vars = rtl92cu_init_sw_vars, .deinit_sw_vars = rtl92cu_deinit_sw_vars, .read_chip_version = rtl92c_read_chip_version, @@ -156,7 +156,7 @@ static struct rtl_hal_usbint_cfg rtl92cu_interface_cfg = { .usb_mq_to_hwq = rtl8192cu_mq_to_hwq, }; -static struct rtl_hal_cfg rtl92cu_hal_cfg = { +static const struct rtl_hal_cfg rtl92cu_hal_cfg = { .name = "rtl92c_usb", .alt_fw_name = "rtlwifi/rtl8192cufw.bin", .ops = &rtl8192cu_hal_ops, diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c index e36e4aeb9a95..7612c22a9842 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c @@ -184,7 +184,7 @@ static void rtl92d_deinit_sw_vars(struct ieee80211_hw *hw) skb_queue_purge(&rtlpriv->mac80211.skb_waitq[tid]); } -static struct rtl_hal_ops rtl8192de_hal_ops = { +static const struct rtl_hal_ops rtl8192de_hal_ops = { .init_sw_vars = rtl92d_init_sw_vars, .deinit_sw_vars = rtl92d_deinit_sw_vars, .read_eeprom_info = rtl92d_read_eeprom_info, diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c index 162e734d5b08..181dd7823b26 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c @@ -176,7 +176,7 @@ static bool rtl92ee_get_btc_status(void) return true; } -static struct rtl_hal_ops rtl8192ee_hal_ops = { +static const struct rtl_hal_ops rtl8192ee_hal_ops = { .init_sw_vars = rtl92ee_init_sw_vars, .deinit_sw_vars = rtl92ee_deinit_sw_vars, .read_eeprom_info = rtl92ee_read_eeprom_info, diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c index e63c67b1861b..1cf801feb45e 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c @@ -221,7 +221,7 @@ static bool rtl92se_is_tx_desc_closed(struct ieee80211_hw *hw, u8 hw_queue, return true; } -static struct rtl_hal_ops rtl8192se_hal_ops = { +static const struct rtl_hal_ops rtl8192se_hal_ops = { .init_sw_vars = rtl92s_init_sw_vars, .deinit_sw_vars = rtl92s_deinit_sw_vars, .read_eeprom_info = rtl92se_read_eeprom_info, diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c index 048744166a92..dcd7cdb96aa4 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c @@ -183,7 +183,7 @@ static bool is_fw_header(struct rtlwifi_firmware_header *hdr) return (le16_to_cpu(hdr->signature) & 0xfff0) == 0x2300; } -static struct rtl_hal_ops rtl8723e_hal_ops = { +static const struct rtl_hal_ops rtl8723e_hal_ops = { .init_sw_vars = rtl8723e_init_sw_vars, .deinit_sw_vars = rtl8723e_deinit_sw_vars, .read_eeprom_info = rtl8723e_read_eeprom_info, diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c index 0a92d0325098..5967df08e34e 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c @@ -187,7 +187,7 @@ static bool is_fw_header(struct rtlwifi_firmware_header *hdr) return (le16_to_cpu(hdr->signature) & 0xfff0) == 0x5300; } -static struct rtl_hal_ops rtl8723be_hal_ops = { +static const struct rtl_hal_ops rtl8723be_hal_ops = { .init_sw_vars = rtl8723be_init_sw_vars, .deinit_sw_vars = rtl8723be_deinit_sw_vars, .read_eeprom_info = rtl8723be_read_eeprom_info, diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c index b5266e560416..1557d32efdd2 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c @@ -229,7 +229,7 @@ static bool rtl8821ae_get_btc_status(void) return true; } -static struct rtl_hal_ops rtl8821ae_hal_ops = { +static const struct rtl_hal_ops rtl8821ae_hal_ops = { .init_sw_vars = rtl8821ae_init_sw_vars, .deinit_sw_vars = rtl8821ae_deinit_sw_vars, .read_eeprom_info = rtl8821ae_read_eeprom_info,
'struct rtl_hal_ops' and 'struct rtl_hal_cfg' are not modified in these drivers. Constifying this structure moves some data to a read-only section, so increase overall security, especially when the structure holds some function pointers. Constification of rtl_hal_cfg is only needed in rtl8192cu/sw.c On a x86_64, with allmodconfig, as an example: Before: ====== text data bss dec hex filename 10167 5512 128 15807 3dbf drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.o After: ===== text data bss dec hex filename 10743 4936 128 15807 3dbf drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- Compile tested-only. --- drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c | 2 +- drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c | 2 +- drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c | 4 ++-- drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c | 2 +- drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c | 2 +- drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c | 2 +- drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c | 2 +- drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c | 2 +- drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c | 2 +- 9 files changed, 10 insertions(+), 10 deletions(-)