[PATCH 01/12] proc: switch /proc/driver/ray_cs/ray_cs to seq_file interface

From: Alexey Dobriyan
Date: Tue Apr 08 2008 - 10:52:17 EST

Signed-off-by: Alexey Dobriyan <adobriyan@xxxxx>
---

drivers/net/wireless/ray_cs.c | 73 ++++++++++++++++++++++++------------------
1 file changed, 42 insertions(+), 31 deletions(-)

--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -34,6 +34,7 @@
#include <linux/kernel.h>
#include <linux/proc_fs.h>
#include <linux/ptrace.h>
+#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/timer.h>
@@ -2582,7 +2583,7 @@ static char *nettype[] = {"Adhoc", "Infra "};
static char *framing[] = {"Encapsulation", "Translation"}
;
/*===========================================================================*/
-static int ray_cs_proc_read(char *buf, char **start, off_t offset, int len)
+static int ray_cs_proc_show(struct seq_file *m, void *v)
{
/* Print current values which are not available via other means
* eg ifconfig
@@ -2606,83 +2607,93 @@ static int ray_cs_proc_read(char *buf, char **start, off_t offset, int len)
if (!local)
return 0;

- len = 0;
-
- len += sprintf(buf + len, "Raylink Wireless LAN driver status\n");
- len += sprintf(buf + len, "%s\n", rcsid);
+ seq_puts(m, "Raylink Wireless LAN driver status\n");
+ seq_printf(m, "%s\n", rcsid);
/* build 4 does not report version, and field is 0x55 after memtest */
- len += sprintf(buf + len, "Firmware version = ");
+ seq_puts(m, "Firmware version = ");
if (local->fw_ver == 0x55)
- len += sprintf(buf + len, "4 - Use dump_cis for more details\n");
+ seq_puts(m, "4 - Use dump_cis for more details\n");
else
- len += sprintf(buf + len, "%2d.%02d.%02d\n",
+ seq_printf(m, "%2d.%02d.%02d\n",
local->fw_ver, local->fw_bld, local->fw_var);

for (i=0; i<32; i++) c[i] = local->sparm.b5.a_current_ess_id[i];
c[32] = 0;
- len += sprintf(buf + len, "%s network ESSID = \"%s\"\n",
+ seq_printf(m, "%s network ESSID = \"%s\"\n",
nettype[local->sparm.b5.a_network_type], c);

p = local->bss_id;
- len += sprintf(buf + len, "BSSID = %s\n",
+ seq_printf(m, "BSSID = %s\n",
print_mac(mac, p));

- len += sprintf(buf + len, "Country code = %d\n",
+ seq_printf(m, "Country code = %d\n",
local->sparm.b5.a_curr_country_code);

i = local->card_status;
if (i < 0) i = 10;
if (i > 16) i = 10;
- len += sprintf(buf + len, "Card status = %s\n", card_status[i]);
+ seq_printf(m, "Card status = %s\n", card_status[i]);

- len += sprintf(buf + len, "Framing mode = %s\n",framing[translate]);
+ seq_printf(m, "Framing mode = %s\n",framing[translate]);

- len += sprintf(buf + len, "Last pkt signal lvl = %d\n", local->last_rsl);
+ seq_printf(m, "Last pkt signal lvl = %d\n", local->last_rsl);

if (local->beacon_rxed) {
/* Pull some fields out of last beacon received */
- len += sprintf(buf + len, "Beacon Interval = %d Kus\n",
+ seq_printf(m, "Beacon Interval = %d Kus\n",
local->last_bcn.beacon_intvl[0]
+ 256 * local->last_bcn.beacon_intvl[1]);

p = local->last_bcn.elements;
if (p[0] == C_ESSID_ELEMENT_ID) p += p[1] + 2;
else {
- len += sprintf(buf + len, "Parse beacon failed at essid element id = %d\n",p[0]);
- return len;
+ seq_printf(m, "Parse beacon failed at essid element id = %d\n",p[0]);
+ return 0;
}

if (p[0] == C_SUPPORTED_RATES_ELEMENT_ID) {
- len += sprintf(buf + len, "Supported rate codes = ");
+ seq_puts(m, "Supported rate codes = ");
for (i=2; i<p[1] + 2; i++)
- len += sprintf(buf + len, "0x%02x ", p[i]);
- len += sprintf(buf + len, "\n");
+ seq_printf(m, "0x%02x ", p[i]);
+ seq_putc(m, '\n');
p += p[1] + 2;
}
else {
- len += sprintf(buf + len, "Parse beacon failed at rates element\n");
- return len;
+ seq_puts(m, "Parse beacon failed at rates element\n");
+ return 0;
}

if (p[0] == C_FH_PARAM_SET_ELEMENT_ID) {
pfh = (struct freq_hop_element *)p;
- len += sprintf(buf + len, "Hop dwell = %d Kus\n",
+ seq_printf(m, "Hop dwell = %d Kus\n",
pfh->dwell_time[0] + 256 * pfh->dwell_time[1]);
- len += sprintf(buf + len, "Hop set = %d \n", pfh->hop_set);
- len += sprintf(buf + len, "Hop pattern = %d \n", pfh->hop_pattern);
- len += sprintf(buf + len, "Hop index = %d \n", pfh->hop_index);
+ seq_printf(m, "Hop set = %d \n", pfh->hop_set);
+ seq_printf(m, "Hop pattern = %d \n", pfh->hop_pattern);
+ seq_printf(m, "Hop index = %d \n", pfh->hop_index);
p += p[1] + 2;
}
else {
- len += sprintf(buf + len, "Parse beacon failed at FH param element\n");
- return len;
+ seq_puts(m, "Parse beacon failed at FH param element\n");
+ return 0;
}
} else {
- len += sprintf(buf + len, "No beacons received\n");
+ seq_puts(m, "No beacons received\n");
}
- return len;
+ return 0;
}

+static int ray_cs_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ray_cs_proc_show, NULL);
+}
+
+static const struct file_operations ray_cs_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = ray_cs_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
#endif
/*===========================================================================*/
static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type)
@@ -2815,7 +2826,7 @@ static int __init init_ray_cs(void)
#ifdef CONFIG_PROC_FS
proc_mkdir("driver/ray_cs", NULL);

- create_proc_info_entry("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_read);
+ proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops);
raycs_write("driver/ray_cs/essid", write_essid, NULL);
raycs_write("driver/ray_cs/net_type", write_int, &net_type);
raycs_write("driver/ray_cs/translate", write_int, &translate);
--
1.5.4.3

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