linux-kernel - [Patch v2 4/4] rtlwifi: rtl_pci: Fix -Wcast-function-type

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Message-Id: <20191126175529.10909-5-tranmanphong@gmail.com>
Date:   Wed, 27 Nov 2019 00:55:29 +0700
From:   Phong Tran <tranmanphong@...il.com>
To:     Larry.Finger@...inger.net, jakub.kicinski@...ronome.com,
        kvalo@...eaurora.org
Cc:     tranmanphong@...il.com, Wright.Feng@...ress.com,
        arend.vanspriel@...adcom.com, davem@...emloft.net,
        emmanuel.grumbach@...el.com, franky.lin@...adcom.com,
        johannes.berg@...el.com, keescook@...omium.org,
        linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org,
        luciano.coelho@...el.com, netdev@...r.kernel.org,
        p.figiel@...lintechnologies.com,
        pieter-paul.giesberts@...adcom.com, pkshih@...ltek.com,
        rafal@...ecki.pl, sara.sharon@...el.com,
        shahar.s.matityahu@...el.com, yhchuang@...ltek.com,
        yuehaibing@...wei.com
Subject: [Patch v2 4/4] rtlwifi: rtl_pci: Fix -Wcast-function-type

correct usage prototype of callback in tasklet_init().
Report by https://github.com/KSPP/linux/issues/20

Signed-off-by: Phong Tran <tranmanphong@...il.com>
---
 drivers/net/wireless/realtek/rtlwifi/pci.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c b/drivers/net/wireless/realtek/rtlwifi/pci.c
index f88d26535978..25335bd2873b 100644
--- a/drivers/net/wireless/realtek/rtlwifi/pci.c
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
@@ -1061,13 +1061,15 @@ static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id)
 	return ret;
 }
 
-static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw)
+static void _rtl_pci_irq_tasklet(unsigned long data)
 {
+	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
 	_rtl_pci_tx_chk_waitq(hw);
 }
 
-static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
+static void _rtl_pci_prepare_bcn_tasklet(unsigned long data)
 {
+	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
@@ -1193,10 +1195,10 @@ static void _rtl_pci_init_struct(struct ieee80211_hw *hw,
 
 	/*task */
 	tasklet_init(&rtlpriv->works.irq_tasklet,
-		     (void (*)(unsigned long))_rtl_pci_irq_tasklet,
+		     _rtl_pci_irq_tasklet,
 		     (unsigned long)hw);
 	tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet,
-		     (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet,
+		     _rtl_pci_prepare_bcn_tasklet,
 		     (unsigned long)hw);
 	INIT_WORK(&rtlpriv->works.lps_change_work,
 		  rtl_lps_change_work_callback);
-- 
2.20.1