forked from Minki/linux
a3fa71c40f
In struct wl18xx_acx_rx_rate_stat, rx_frames_per_rates field is an
array, not a number. This means WL18XX_DEBUGFS_FWSTATS_FILE can't be
used to display this field in debugfs (it would display a pointer, not
the actual data). Use WL18XX_DEBUGFS_FWSTATS_FILE_ARRAY instead.
This bug has been found by adding a __printf attribute to
wl1271_format_buffer. gcc complained about "format '%u' expects
argument of type 'unsigned int', but argument 5 has type 'u32 *'".
Fixes: c5d94169e8 ("wl18xx: use new fw stats structures")
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
/*
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* This file is part of wl1271
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*
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* Copyright (C) 2009 Nokia Corporation
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*
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* Contact: Luciano Coelho <luciano.coelho@nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef __DEBUGFS_H__
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#define __DEBUGFS_H__
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#include "wlcore.h"
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__printf(4, 5) int wl1271_format_buffer(char __user *userbuf, size_t count,
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loff_t *ppos, char *fmt, ...);
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int wl1271_debugfs_init(struct wl1271 *wl);
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void wl1271_debugfs_exit(struct wl1271 *wl);
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void wl1271_debugfs_reset(struct wl1271 *wl);
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void wl1271_debugfs_update_stats(struct wl1271 *wl);
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#define DEBUGFS_FORMAT_BUFFER_SIZE 256
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#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
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static ssize_t name## _read(struct file *file, char __user *userbuf, \
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size_t count, loff_t *ppos) \
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{ \
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struct wl1271 *wl = file->private_data; \
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return wl1271_format_buffer(userbuf, count, ppos, \
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fmt "\n", ##value); \
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} \
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\
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static const struct file_operations name## _ops = { \
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.read = name## _read, \
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.open = simple_open, \
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.llseek = generic_file_llseek, \
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};
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#define DEBUGFS_ADD(name, parent) \
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do { \
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entry = debugfs_create_file(#name, 0400, parent, \
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wl, &name## _ops); \
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if (!entry || IS_ERR(entry)) \
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goto err; \
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} while (0)
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#define DEBUGFS_ADD_PREFIX(prefix, name, parent) \
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do { \
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entry = debugfs_create_file(#name, 0400, parent, \
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wl, &prefix## _## name## _ops); \
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if (!entry || IS_ERR(entry)) \
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goto err; \
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} while (0)
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#define DEBUGFS_FWSTATS_FILE(sub, name, fmt, struct_type) \
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static ssize_t sub## _ ##name## _read(struct file *file, \
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char __user *userbuf, \
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size_t count, loff_t *ppos) \
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{ \
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struct wl1271 *wl = file->private_data; \
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struct struct_type *stats = wl->stats.fw_stats; \
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\
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wl1271_debugfs_update_stats(wl); \
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\
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return wl1271_format_buffer(userbuf, count, ppos, fmt "\n", \
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stats->sub.name); \
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} \
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\
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static const struct file_operations sub## _ ##name## _ops = { \
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.read = sub## _ ##name## _read, \
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.open = simple_open, \
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.llseek = generic_file_llseek, \
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};
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#define DEBUGFS_FWSTATS_FILE_ARRAY(sub, name, len, struct_type) \
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static ssize_t sub## _ ##name## _read(struct file *file, \
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char __user *userbuf, \
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size_t count, loff_t *ppos) \
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{ \
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struct wl1271 *wl = file->private_data; \
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struct struct_type *stats = wl->stats.fw_stats; \
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char buf[DEBUGFS_FORMAT_BUFFER_SIZE] = ""; \
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int res, i; \
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\
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wl1271_debugfs_update_stats(wl); \
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\
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for (i = 0; i < len; i++) \
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res = snprintf(buf, sizeof(buf), "%s[%d] = %d\n", \
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buf, i, stats->sub.name[i]); \
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\
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return wl1271_format_buffer(userbuf, count, ppos, "%s", buf); \
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} \
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\
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static const struct file_operations sub## _ ##name## _ops = { \
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.read = sub## _ ##name## _read, \
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.open = simple_open, \
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.llseek = generic_file_llseek, \
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};
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#define DEBUGFS_FWSTATS_ADD(sub, name) \
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DEBUGFS_ADD(sub## _ ##name, stats)
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#endif /* WL1271_DEBUGFS_H */
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