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USB: chipidea: remove dentry storage for debugfs file
There is no need to store the dentry pointer for a debugfs file that we only use to remove it when the device goes away. debugfs can do the lookup for us instead, saving us some trouble, and making things smaller overall. Cc: Peter Chen <peter.chen@kernel.org> Link: https://lore.kernel.org/r/20210525171419.758146-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit
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2 changed files with 12 additions and 20 deletions
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@ -195,7 +195,6 @@ struct hw_bank {
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* @phy: pointer to PHY, if any
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* @usb_phy: pointer to USB PHY, if any and if using the USB PHY framework
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* @hcd: pointer to usb_hcd for ehci host driver
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* @debugfs: root dentry for this controller in debugfs
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* @id_event: indicates there is an id event, and handled at ci_otg_work
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* @b_sess_valid_event: indicates there is a vbus event, and handled
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* at ci_otg_work
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@ -249,7 +248,6 @@ struct ci_hdrc {
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/* old usb_phy interface */
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struct usb_phy *usb_phy;
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struct usb_hcd *hcd;
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struct dentry *debugfs;
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bool id_event;
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bool b_sess_valid_event;
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bool imx28_write_fix;
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@ -342,26 +342,20 @@ DEFINE_SHOW_ATTRIBUTE(ci_registers);
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*/
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void dbg_create_files(struct ci_hdrc *ci)
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{
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ci->debugfs = debugfs_create_dir(dev_name(ci->dev), usb_debug_root);
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struct dentry *dir;
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debugfs_create_file("device", S_IRUGO, ci->debugfs, ci,
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&ci_device_fops);
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debugfs_create_file("port_test", S_IRUGO | S_IWUSR, ci->debugfs, ci,
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&ci_port_test_fops);
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debugfs_create_file("qheads", S_IRUGO, ci->debugfs, ci,
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&ci_qheads_fops);
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debugfs_create_file("requests", S_IRUGO, ci->debugfs, ci,
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&ci_requests_fops);
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dir = debugfs_create_dir(dev_name(ci->dev), usb_debug_root);
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if (ci_otg_is_fsm_mode(ci)) {
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debugfs_create_file("otg", S_IRUGO, ci->debugfs, ci,
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&ci_otg_fops);
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}
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debugfs_create_file("device", S_IRUGO, dir, ci, &ci_device_fops);
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debugfs_create_file("port_test", S_IRUGO | S_IWUSR, dir, ci, &ci_port_test_fops);
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debugfs_create_file("qheads", S_IRUGO, dir, ci, &ci_qheads_fops);
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debugfs_create_file("requests", S_IRUGO, dir, ci, &ci_requests_fops);
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debugfs_create_file("role", S_IRUGO | S_IWUSR, ci->debugfs, ci,
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&ci_role_fops);
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debugfs_create_file("registers", S_IRUGO, ci->debugfs, ci,
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&ci_registers_fops);
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if (ci_otg_is_fsm_mode(ci))
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debugfs_create_file("otg", S_IRUGO, dir, ci, &ci_otg_fops);
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debugfs_create_file("role", S_IRUGO | S_IWUSR, dir, ci, &ci_role_fops);
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debugfs_create_file("registers", S_IRUGO, dir, ci, &ci_registers_fops);
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}
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/**
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@ -370,5 +364,5 @@ void dbg_create_files(struct ci_hdrc *ci)
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*/
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void dbg_remove_files(struct ci_hdrc *ci)
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{
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debugfs_remove_recursive(ci->debugfs);
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debugfs_remove(debugfs_lookup(dev_name(ci->dev), usb_debug_root));
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}
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