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authorCai Huoqing <cai.huoqing@linux.dev>2023-03-23 14:37:09 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-04-08 23:45:38 +0300
commita74d9a3f4fc96520c8f85cd372a16a0b29430701 (patch)
tree7c2d68cda0781629381a6ac52c22febc33cdc225 /drivers
parent890a3ee3ce416e2f1aed41718a8c1d42c82cf1b2 (diff)
downloadlinux-a74d9a3f4fc96520c8f85cd372a16a0b29430701.tar.xz
rapidio/tsi721: 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. Link: https://lkml.kernel.org/r/20230323113711.10523-1-cai.huoqing@linux.dev Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev> Cc: Alexandre Bounine <alex.bou9@gmail.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/rapidio/devices/tsi721.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index 0a42d6a2af24..83323c3d10af 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -2924,7 +2924,6 @@ err_unmap_bars:
iounmap(priv->odb_base);
err_free_res:
pci_release_regions(pdev);
- pci_clear_master(pdev);
err_disable_pdev:
pci_disable_device(pdev);
err_clean:
@@ -2962,7 +2961,6 @@ static void tsi721_remove(struct pci_dev *pdev)
pci_disable_msi(priv->pdev);
#endif
pci_release_regions(pdev);
- pci_clear_master(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
kfree(priv);
@@ -2977,7 +2975,6 @@ static void tsi721_shutdown(struct pci_dev *pdev)
tsi721_disable_ints(priv);
tsi721_dma_stop_all(priv);
- pci_clear_master(pdev);
pci_disable_device(pdev);
}