From: Dmitry Antipov Date: Fri, 20 Oct 2023 04:09:36 +0000 (+0300) Subject: wifi: rtw89: cleanup firmware elements parsing X-Git-Tag: io_uring-6.7-2023-11-10~40^2~27^2~2 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=7d7b6f2953b342bf6eab81886a03680109f3cb1c;p=linux-2.6-block.git wifi: rtw89: cleanup firmware elements parsing When compiling with clang-18, I've noticed the following: drivers/net/wireless/realtek/rtw89/fw.c:389:28: warning: cast to smaller integer type 'enum rtw89_fw_type' from 'const void *' [-Wvoid-pointer-to-enum-cast] 389 | enum rtw89_fw_type type = (enum rtw89_fw_type)data; | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/realtek/rtw89/fw.c:569:13: warning: cast to smaller integer type 'enum rtw89_rf_path' from 'const void *' [-Wvoid-pointer-to-enum-cast] 569 | rf_path = (enum rtw89_rf_path)data; | ^~~~~~~~~~~~~~~~~~~~~~~~ So avoid brutal everything-to-const-void-and-back casts, introduce 'union rtw89_fw_element_arg' to pass parameters to element handler callbacks, and adjust all of the related bits accordingly. Compile tested only. Signed-off-by: Dmitry Antipov Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20231020040940.33154-1-dmantipov@yandex.ru --- diff --git a/drivers/net/wireless/realtek/rtw89/fw.c b/drivers/net/wireless/realtek/rtw89/fw.c index 7cfcf536d6fe..a732c22a2d54 100644 --- a/drivers/net/wireless/realtek/rtw89/fw.c +++ b/drivers/net/wireless/realtek/rtw89/fw.c @@ -13,6 +13,20 @@ #include "reg.h" #include "util.h" +union rtw89_fw_element_arg { + size_t offset; + enum rtw89_rf_path rf_path; + enum rtw89_fw_type fw_type; +}; + +struct rtw89_fw_element_handler { + int (*fn)(struct rtw89_dev *rtwdev, + const struct rtw89_fw_element_hdr *elm, + const union rtw89_fw_element_arg arg); + const union rtw89_fw_element_arg arg; + const char *name; +}; + static void rtw89_fw_c2h_cmd_handle(struct rtw89_dev *rtwdev, struct sk_buff *skb); static int rtw89_h2c_tx_and_wait(struct rtw89_dev *rtwdev, struct sk_buff *skb, @@ -384,9 +398,9 @@ int __rtw89_fw_recognize(struct rtw89_dev *rtwdev, enum rtw89_fw_type type, static int __rtw89_fw_recognize_from_elm(struct rtw89_dev *rtwdev, const struct rtw89_fw_element_hdr *elm, - const void *data) + const union rtw89_fw_element_arg arg) { - enum rtw89_fw_type type = (enum rtw89_fw_type)data; + enum rtw89_fw_type type = arg.fw_type; struct rtw89_fw_suit *fw_suit; fw_suit = rtw89_fw_suit_get(rtwdev, type); @@ -542,7 +556,7 @@ normal_done: static int rtw89_build_phy_tbl_from_elm(struct rtw89_dev *rtwdev, const struct rtw89_fw_element_hdr *elm, - const void *data) + const union rtw89_fw_element_arg arg) { struct rtw89_fw_elm_info *elm_info = &rtwdev->fw.elm_info; struct rtw89_phy_table *tbl; @@ -566,7 +580,7 @@ int rtw89_build_phy_tbl_from_elm(struct rtw89_dev *rtwdev, case RTW89_FW_ELEMENT_ID_RADIO_B: case RTW89_FW_ELEMENT_ID_RADIO_C: case RTW89_FW_ELEMENT_ID_RADIO_D: - rf_path = (enum rtw89_rf_path)data; + rf_path = arg.rf_path; idx = elm->u.reg2.idx; elm_info->rf_radio[idx] = tbl; @@ -604,10 +618,10 @@ out: static int rtw89_fw_recognize_txpwr_from_elm(struct rtw89_dev *rtwdev, const struct rtw89_fw_element_hdr *elm, - const void *data) + const union rtw89_fw_element_arg arg) { const struct __rtw89_fw_txpwr_element *txpwr_elm = &elm->u.txpwr; - const unsigned long offset = (const unsigned long)data; + const unsigned long offset = arg.offset; struct rtw89_efuse *efuse = &rtwdev->efuse; struct rtw89_txpwr_conf *conf; @@ -644,64 +658,57 @@ setup: return 0; } -struct rtw89_fw_element_handler { - int (*fn)(struct rtw89_dev *rtwdev, - const struct rtw89_fw_element_hdr *elm, const void *data); - const void *data; - const char *name; -}; - static const struct rtw89_fw_element_handler __fw_element_handlers[] = { [RTW89_FW_ELEMENT_ID_BBMCU0] = {__rtw89_fw_recognize_from_elm, - (const void *)RTW89_FW_BBMCU0, NULL}, + { .fw_type = RTW89_FW_BBMCU0 }, NULL}, [RTW89_FW_ELEMENT_ID_BBMCU1] = {__rtw89_fw_recognize_from_elm, - (const void *)RTW89_FW_BBMCU1, NULL}, - [RTW89_FW_ELEMENT_ID_BB_REG] = {rtw89_build_phy_tbl_from_elm, NULL, "BB"}, - [RTW89_FW_ELEMENT_ID_BB_GAIN] = {rtw89_build_phy_tbl_from_elm, NULL, NULL}, + { .fw_type = RTW89_FW_BBMCU1 }, NULL}, + [RTW89_FW_ELEMENT_ID_BB_REG] = {rtw89_build_phy_tbl_from_elm, {}, "BB"}, + [RTW89_FW_ELEMENT_ID_BB_GAIN] = {rtw89_build_phy_tbl_from_elm, {}, NULL}, [RTW89_FW_ELEMENT_ID_RADIO_A] = {rtw89_build_phy_tbl_from_elm, - (const void *)RF_PATH_A, "radio A"}, + { .rf_path = RF_PATH_A }, "radio A"}, [RTW89_FW_ELEMENT_ID_RADIO_B] = {rtw89_build_phy_tbl_from_elm, - (const void *)RF_PATH_B, NULL}, + { .rf_path = RF_PATH_B }, NULL}, [RTW89_FW_ELEMENT_ID_RADIO_C] = {rtw89_build_phy_tbl_from_elm, - (const void *)RF_PATH_C, NULL}, + { .rf_path = RF_PATH_C }, NULL}, [RTW89_FW_ELEMENT_ID_RADIO_D] = {rtw89_build_phy_tbl_from_elm, - (const void *)RF_PATH_D, NULL}, - [RTW89_FW_ELEMENT_ID_RF_NCTL] = {rtw89_build_phy_tbl_from_elm, NULL, "NCTL"}, + { .rf_path = RF_PATH_D }, NULL}, + [RTW89_FW_ELEMENT_ID_RF_NCTL] = {rtw89_build_phy_tbl_from_elm, {}, "NCTL"}, [RTW89_FW_ELEMENT_ID_TXPWR_BYRATE] = { rtw89_fw_recognize_txpwr_from_elm, - (const void *)offsetof(struct rtw89_rfe_data, byrate.conf), "TXPWR", + { .offset = offsetof(struct rtw89_rfe_data, byrate.conf) }, "TXPWR", }, [RTW89_FW_ELEMENT_ID_TXPWR_LMT_2GHZ] = { rtw89_fw_recognize_txpwr_from_elm, - (const void *)offsetof(struct rtw89_rfe_data, lmt_2ghz.conf), NULL, + { .offset = offsetof(struct rtw89_rfe_data, lmt_2ghz.conf) }, NULL, }, [RTW89_FW_ELEMENT_ID_TXPWR_LMT_5GHZ] = { rtw89_fw_recognize_txpwr_from_elm, - (const void *)offsetof(struct rtw89_rfe_data, lmt_5ghz.conf), NULL, + { .offset = offsetof(struct rtw89_rfe_data, lmt_5ghz.conf) }, NULL, }, [RTW89_FW_ELEMENT_ID_TXPWR_LMT_6GHZ] = { rtw89_fw_recognize_txpwr_from_elm, - (const void *)offsetof(struct rtw89_rfe_data, lmt_6ghz.conf), NULL, + { .offset = offsetof(struct rtw89_rfe_data, lmt_6ghz.conf) }, NULL, }, [RTW89_FW_ELEMENT_ID_TXPWR_LMT_RU_2GHZ] = { rtw89_fw_recognize_txpwr_from_elm, - (const void *)offsetof(struct rtw89_rfe_data, lmt_ru_2ghz.conf), NULL, + { .offset = offsetof(struct rtw89_rfe_data, lmt_ru_2ghz.conf) }, NULL, }, [RTW89_FW_ELEMENT_ID_TXPWR_LMT_RU_5GHZ] = { rtw89_fw_recognize_txpwr_from_elm, - (const void *)offsetof(struct rtw89_rfe_data, lmt_ru_5ghz.conf), NULL, + { .offset = offsetof(struct rtw89_rfe_data, lmt_ru_5ghz.conf) }, NULL, }, [RTW89_FW_ELEMENT_ID_TXPWR_LMT_RU_6GHZ] = { rtw89_fw_recognize_txpwr_from_elm, - (const void *)offsetof(struct rtw89_rfe_data, lmt_ru_6ghz.conf), NULL, + { .offset = offsetof(struct rtw89_rfe_data, lmt_ru_6ghz.conf) }, NULL, }, [RTW89_FW_ELEMENT_ID_TX_SHAPE_LMT] = { rtw89_fw_recognize_txpwr_from_elm, - (const void *)offsetof(struct rtw89_rfe_data, tx_shape_lmt.conf), NULL, + { .offset = offsetof(struct rtw89_rfe_data, tx_shape_lmt.conf) }, NULL, }, [RTW89_FW_ELEMENT_ID_TX_SHAPE_LMT_RU] = { rtw89_fw_recognize_txpwr_from_elm, - (const void *)offsetof(struct rtw89_rfe_data, tx_shape_lmt_ru.conf), NULL, + { .offset = offsetof(struct rtw89_rfe_data, tx_shape_lmt_ru.conf) }, NULL, }, }; @@ -742,7 +749,7 @@ int rtw89_fw_recognize_elements(struct rtw89_dev *rtwdev) if (!handler->fn) goto next; - ret = handler->fn(rtwdev, hdr, handler->data); + ret = handler->fn(rtwdev, hdr, handler->arg); if (ret) return ret;