From 5995f746310108b11c7e377b0ebac4c98e53f9dc Mon Sep 17 00:00:00 2001
From: Cai Huoqing <cai.huoqing@linux.dev>
Date: Thu, 23 Mar 2023 19:26:13 +0800
Subject: [PATCH] wifi: rtw89: Remove redundant pci_clear_master
Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230323112613.7550-5-cai.huoqing@linux.dev
---
drivers/net/wireless/realtek/rtw89/pci.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c
index 4025aabe0604..68f0fed6d31e 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.c
+++ b/drivers/net/wireless/realtek/rtw89/pci.c
@@ -2694,7 +2694,6 @@ static int rtw89_pci_claim_device(struct rtw89_dev *rtwdev,
static void rtw89_pci_declaim_device(struct rtw89_dev *rtwdev,
struct pci_dev *pdev)
{
- pci_clear_master(pdev);
pci_disable_device(pdev);
}
--
2.30.9