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de467c116c
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: "David S. Miller" <davem@davemloft.net> Cc: Yangtao Li <tiny.windzz@gmail.com> Cc: netdev@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* FUJITSU Extended Socket Network Device driver
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* Copyright (c) 2015-2016 FUJITSU LIMITED
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*/
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/* debugfs support for fjes driver */
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#ifdef CONFIG_DEBUG_FS
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include <linux/platform_device.h>
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#include "fjes.h"
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static struct dentry *fjes_debug_root;
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static const char * const ep_status_string[] = {
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"unshared",
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"shared",
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"waiting",
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"complete",
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};
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static int fjes_dbg_status_show(struct seq_file *m, void *v)
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{
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struct fjes_adapter *adapter = m->private;
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struct fjes_hw *hw = &adapter->hw;
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int max_epid = hw->max_epid;
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int my_epid = hw->my_epid;
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int epidx;
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seq_puts(m, "EPID\tSTATUS SAME_ZONE CONNECTED\n");
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for (epidx = 0; epidx < max_epid; epidx++) {
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if (epidx == my_epid) {
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seq_printf(m, "ep%d\t%-16c %-16c %-16c\n",
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epidx, '-', '-', '-');
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} else {
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seq_printf(m, "ep%d\t%-16s %-16c %-16c\n",
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epidx,
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ep_status_string[fjes_hw_get_partner_ep_status(hw, epidx)],
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fjes_hw_epid_is_same_zone(hw, epidx) ? 'Y' : 'N',
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fjes_hw_epid_is_shared(hw->hw_info.share, epidx) ? 'Y' : 'N');
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}
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}
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(fjes_dbg_status);
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void fjes_dbg_adapter_init(struct fjes_adapter *adapter)
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{
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const char *name = dev_name(&adapter->plat_dev->dev);
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adapter->dbg_adapter = debugfs_create_dir(name, fjes_debug_root);
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debugfs_create_file("status", 0444, adapter->dbg_adapter, adapter,
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&fjes_dbg_status_fops);
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}
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void fjes_dbg_adapter_exit(struct fjes_adapter *adapter)
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{
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debugfs_remove_recursive(adapter->dbg_adapter);
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adapter->dbg_adapter = NULL;
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}
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void fjes_dbg_init(void)
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{
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fjes_debug_root = debugfs_create_dir(fjes_driver_name, NULL);
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}
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void fjes_dbg_exit(void)
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{
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debugfs_remove_recursive(fjes_debug_root);
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fjes_debug_root = NULL;
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}
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#endif /* CONFIG_DEBUG_FS */
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