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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2025-01-25 03:59:54 +07:00
234e340582
Many users of debugfs copy the implementation of default_open() when
they want to support a custom read/write function op. This leads to a
proliferation of the default_open() implementation across the entire
tree.
Now that the common implementation has been consolidated into libfs we
can replace all the users of this function with simple_open().
This replacement was done with the following semantic patch:
<smpl>
@ open @
identifier open_f != simple_open;
identifier i, f;
@@
-int open_f(struct inode *i, struct file *f)
-{
(
-if (i->i_private)
-f->private_data = i->i_private;
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-f->private_data = i->i_private;
)
-return 0;
-}
@ has_open depends on open @
identifier fops;
identifier open.open_f;
@@
struct file_operations fops = {
...
-.open = open_f,
+.open = simple_open,
...
};
</smpl>
[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/*
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* Copyright (c) 2008-2011 Atheros Communications Inc.
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* Copyright (c) 2011 Neratec Solutions AG
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <linux/debugfs.h>
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#include <linux/export.h>
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#include "ath9k.h"
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#include "dfs_debug.h"
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#define ATH9K_DFS_STAT(s, p) \
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len += snprintf(buf + len, size - len, "%28s : %10u\n", s, \
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sc->debug.stats.dfs_stats.p);
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static ssize_t read_file_dfs(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath_softc *sc = file->private_data;
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struct ath9k_hw_version *hw_ver = &sc->sc_ah->hw_version;
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char *buf;
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unsigned int len = 0, size = 8000;
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ssize_t retval = 0;
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buf = kzalloc(size, GFP_KERNEL);
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if (buf == NULL)
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return -ENOMEM;
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len += snprintf(buf + len, size - len, "DFS support for "
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"macVersion = 0x%x, macRev = 0x%x: %s\n",
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hw_ver->macVersion, hw_ver->macRev,
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(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_DFS) ?
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"enabled" : "disabled");
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ATH9K_DFS_STAT("DFS pulses detected ", pulses_detected);
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ATH9K_DFS_STAT("Datalen discards ", datalen_discards);
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ATH9K_DFS_STAT("RSSI discards ", rssi_discards);
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ATH9K_DFS_STAT("BW info discards ", bwinfo_discards);
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ATH9K_DFS_STAT("Primary channel pulses ", pri_phy_errors);
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ATH9K_DFS_STAT("Secondary channel pulses", ext_phy_errors);
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ATH9K_DFS_STAT("Dual channel pulses ", dc_phy_errors);
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if (len > size)
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len = size;
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retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
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kfree(buf);
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return retval;
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}
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static const struct file_operations fops_dfs_stats = {
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.read = read_file_dfs,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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void ath9k_dfs_init_debug(struct ath_softc *sc)
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{
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debugfs_create_file("dfs_stats", S_IRUSR,
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sc->debug.debugfs_phy, sc, &fops_dfs_stats);
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}
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