[PATCH] ipmi: convert to seq_file interface
Alexey Dobriyan <adobriyan <at> gmail.com>
2011-05-13 20:13:08 GMT
->read_proc interface is going away, convert to seq_file.
Signed-off-by: Alexey Dobriyan <adobriyan <at> gmail.com>
---
drivers/char/ipmi/ipmi_msghandler.c | 138 +++++++++++++++++++++---------------
drivers/char/ipmi/ipmi_si_intf.c | 88 +++++++++++++++-------
include/linux/ipmi_smi.h | 2
3 files changed, 142 insertions(+), 86 deletions(-)
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -36,6 +36,7 @@
#include <asm/system.h>
#include <linux/poll.h>
#include <linux/sched.h>
+#include <linux/seq_file.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/slab.h>
@@ -1896,102 +1897,128 @@ int ipmi_request_supply_msgs(ipmi_user_t user,
EXPORT_SYMBOL(ipmi_request_supply_msgs);
#ifdef CONFIG_PROC_FS
-static int ipmb_file_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int smi_ipmb_proc_show(struct seq_file *m, void *v)
{
- char *out = (char *) page;
- ipmi_smi_t intf = data;
+ ipmi_smi_t intf = m->private;
int i;
- int rv = 0;
- for (i = 0; i < IPMI_MAX_CHANNELS; i++)
- rv += sprintf(out+rv, "%x ", intf->channels[i].address);
- out[rv-1] = '\n'; /* Replace the final space with a newline */
- out[rv] = '\0';
- rv++;
- return rv;
+ seq_printf(m, "%x", intf->channels[0].address);
+ for (i = 1; i < IPMI_MAX_CHANNELS; i++)
+ seq_printf(m, " %x", intf->channels[i].address);
+ return seq_putc(m, '\n');
}
-static int version_file_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int smi_ipmb_proc_open(struct inode *inode, struct file *file)
{
- char *out = (char *) page;
- ipmi_smi_t intf = data;
+ return single_open(file, smi_ipmb_proc_show, PDE(inode)->data);
+}
- return sprintf(out, "%u.%u\n",
+static const struct file_operations smi_ipmb_proc_ops = {
+ .open = smi_ipmb_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int smi_version_proc_show(struct seq_file *m, void *v)
+{
+ ipmi_smi_t intf = m->private;
+
+ return seq_printf(m, "%u.%u\n",
ipmi_version_major(&intf->bmc->id),
ipmi_version_minor(&intf->bmc->id));
}
-static int stat_file_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int smi_version_proc_open(struct inode *inode, struct file *file)
{
- char *out = (char *) page;
- ipmi_smi_t intf = data;
+ return single_open(file, smi_version_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations smi_version_proc_ops = {
+ .open = smi_version_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
- out += sprintf(out, "sent_invalid_commands: %u\n",
+static int smi_stats_proc_show(struct seq_file *m, void *v)
+{
+ ipmi_smi_t intf = m->private;
+
+ seq_printf(m, "sent_invalid_commands: %u\n",
ipmi_get_stat(intf, sent_invalid_commands));
- out += sprintf(out, "sent_local_commands: %u\n",
+ seq_printf(m, "sent_local_commands: %u\n",
ipmi_get_stat(intf, sent_local_commands));
- out += sprintf(out, "handled_local_responses: %u\n",
+ seq_printf(m, "handled_local_responses: %u\n",
ipmi_get_stat(intf, handled_local_responses));
- out += sprintf(out, "unhandled_local_responses: %u\n",
+ seq_printf(m, "unhandled_local_responses: %u\n",
ipmi_get_stat(intf, unhandled_local_responses));
- out += sprintf(out, "sent_ipmb_commands: %u\n",
+ seq_printf(m, "sent_ipmb_commands: %u\n",
ipmi_get_stat(intf, sent_ipmb_commands));
- out += sprintf(out, "sent_ipmb_command_errs: %u\n",
+ seq_printf(m, "sent_ipmb_command_errs: %u\n",
ipmi_get_stat(intf, sent_ipmb_command_errs));
- out += sprintf(out, "retransmitted_ipmb_commands: %u\n",
+ seq_printf(m, "retransmitted_ipmb_commands: %u\n",
ipmi_get_stat(intf, retransmitted_ipmb_commands));
- out += sprintf(out, "timed_out_ipmb_commands: %u\n",
+ seq_printf(m, "timed_out_ipmb_commands: %u\n",
ipmi_get_stat(intf, timed_out_ipmb_commands));
- out += sprintf(out, "timed_out_ipmb_broadcasts: %u\n",
+ seq_printf(m, "timed_out_ipmb_broadcasts: %u\n",
ipmi_get_stat(intf, timed_out_ipmb_broadcasts));
- out += sprintf(out, "sent_ipmb_responses: %u\n",
+ seq_printf(m, "sent_ipmb_responses: %u\n",
ipmi_get_stat(intf, sent_ipmb_responses));
- out += sprintf(out, "handled_ipmb_responses: %u\n",
+ seq_printf(m, "handled_ipmb_responses: %u\n",
ipmi_get_stat(intf, handled_ipmb_responses));
- out += sprintf(out, "invalid_ipmb_responses: %u\n",
+ seq_printf(m, "invalid_ipmb_responses: %u\n",
ipmi_get_stat(intf, invalid_ipmb_responses));
- out += sprintf(out, "unhandled_ipmb_responses: %u\n",
+ seq_printf(m, "unhandled_ipmb_responses: %u\n",
ipmi_get_stat(intf, unhandled_ipmb_responses));
- out += sprintf(out, "sent_lan_commands: %u\n",
+ seq_printf(m, "sent_lan_commands: %u\n",
ipmi_get_stat(intf, sent_lan_commands));
- out += sprintf(out, "sent_lan_command_errs: %u\n",
+ seq_printf(m, "sent_lan_command_errs: %u\n",
ipmi_get_stat(intf, sent_lan_command_errs));
- out += sprintf(out, "retransmitted_lan_commands: %u\n",
+ seq_printf(m, "retransmitted_lan_commands: %u\n",
ipmi_get_stat(intf, retransmitted_lan_commands));
- out += sprintf(out, "timed_out_lan_commands: %u\n",
+ seq_printf(m, "timed_out_lan_commands: %u\n",
ipmi_get_stat(intf, timed_out_lan_commands));
- out += sprintf(out, "sent_lan_responses: %u\n",
+ seq_printf(m, "sent_lan_responses: %u\n",
ipmi_get_stat(intf, sent_lan_responses));
- out += sprintf(out, "handled_lan_responses: %u\n",
+ seq_printf(m, "handled_lan_responses: %u\n",
ipmi_get_stat(intf, handled_lan_responses));
- out += sprintf(out, "invalid_lan_responses: %u\n",
+ seq_printf(m, "invalid_lan_responses: %u\n",
ipmi_get_stat(intf, invalid_lan_responses));
- out += sprintf(out, "unhandled_lan_responses: %u\n",
+ seq_printf(m, "unhandled_lan_responses: %u\n",
ipmi_get_stat(intf, unhandled_lan_responses));
- out += sprintf(out, "handled_commands: %u\n",
+ seq_printf(m, "handled_commands: %u\n",
ipmi_get_stat(intf, handled_commands));
- out += sprintf(out, "invalid_commands: %u\n",
+ seq_printf(m, "invalid_commands: %u\n",
ipmi_get_stat(intf, invalid_commands));
- out += sprintf(out, "unhandled_commands: %u\n",
+ seq_printf(m, "unhandled_commands: %u\n",
ipmi_get_stat(intf, unhandled_commands));
- out += sprintf(out, "invalid_events: %u\n",
+ seq_printf(m, "invalid_events: %u\n",
ipmi_get_stat(intf, invalid_events));
- out += sprintf(out, "events: %u\n",
+ seq_printf(m, "events: %u\n",
ipmi_get_stat(intf, events));
- out += sprintf(out, "failed rexmit LAN msgs: %u\n",
+ seq_printf(m, "failed rexmit LAN msgs: %u\n",
ipmi_get_stat(intf, dropped_rexmit_lan_commands));
- out += sprintf(out, "failed rexmit IPMB msgs: %u\n",
+ seq_printf(m, "failed rexmit IPMB msgs: %u\n",
ipmi_get_stat(intf, dropped_rexmit_ipmb_commands));
+ return 0;
+}
- return (out - ((char *) page));
+static int smi_stats_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, smi_stats_proc_show, PDE(inode)->data);
}
+
+static const struct file_operations smi_stats_proc_ops = {
+ .open = smi_stats_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
#endif /* CONFIG_PROC_FS */
int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
- read_proc_t *read_proc,
+ const struct file_operations *proc_ops,
void *data)
{
int rv = 0;
@@ -2010,15 +2037,12 @@ int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
}
strcpy(entry->name, name);
- file = create_proc_entry(name, 0, smi->proc_dir);
+ file = proc_create_data(name, 0, smi->proc_dir, proc_ops, data);
if (!file) {
kfree(entry->name);
kfree(entry);
rv = -ENOMEM;
} else {
- file->data = data;
- file->read_proc = read_proc;
-
mutex_lock(&smi->proc_entry_lock);
/* Stick it on the list. */
entry->next = smi->proc_entries;
@@ -2043,17 +2067,17 @@ static int add_proc_entries(ipmi_smi_t smi, int num)
if (rv == 0)
rv = ipmi_smi_add_proc_entry(smi, "stats",
- stat_file_read_proc,
+ &smi_stats_proc_ops,
smi);
if (rv == 0)
rv = ipmi_smi_add_proc_entry(smi, "ipmb",
- ipmb_file_read_proc,
+ &smi_ipmb_proc_ops,
smi);
if (rv == 0)
rv = ipmi_smi_add_proc_entry(smi, "version",
- version_file_read_proc,
+ &smi_version_proc_ops,
smi);
#endif /* CONFIG_PROC_FS */
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -43,6 +43,7 @@
#include <linux/moduleparam.h>
#include <asm/system.h>
#include <linux/sched.h>
+#include <linux/seq_file.h>
#include <linux/timer.h>
#include <linux/errno.h>
#include <linux/spinlock.h>
@@ -2802,54 +2803,73 @@ static int try_enable_event_buffer(struct smi_info *smi_info)
return rv;
}
-static int type_file_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int smi_type_proc_show(struct seq_file *m, void *v)
{
- struct smi_info *smi = data;
+ struct smi_info *smi = m->private;
- return sprintf(page, "%s\n", si_to_str[smi->si_type]);
+ return seq_printf(m, "%s\n", si_to_str[smi->si_type]);
}
-static int stat_file_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int smi_type_proc_open(struct inode *inode, struct file *file)
{
- char *out = (char *) page;
- struct smi_info *smi = data;
+ return single_open(file, smi_type_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations smi_type_proc_ops = {
+ .open = smi_type_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int smi_si_stats_proc_show(struct seq_file *m, void *v)
+{
+ struct smi_info *smi = m->private;
- out += sprintf(out, "interrupts_enabled: %d\n",
+ seq_printf(m, "interrupts_enabled: %d\n",
smi->irq && !smi->interrupt_disabled);
- out += sprintf(out, "short_timeouts: %u\n",
+ seq_printf(m, "short_timeouts: %u\n",
smi_get_stat(smi, short_timeouts));
- out += sprintf(out, "long_timeouts: %u\n",
+ seq_printf(m, "long_timeouts: %u\n",
smi_get_stat(smi, long_timeouts));
- out += sprintf(out, "idles: %u\n",
+ seq_printf(m, "idles: %u\n",
smi_get_stat(smi, idles));
- out += sprintf(out, "interrupts: %u\n",
+ seq_printf(m, "interrupts: %u\n",
smi_get_stat(smi, interrupts));
- out += sprintf(out, "attentions: %u\n",
+ seq_printf(m, "attentions: %u\n",
smi_get_stat(smi, attentions));
- out += sprintf(out, "flag_fetches: %u\n",
+ seq_printf(m, "flag_fetches: %u\n",
smi_get_stat(smi, flag_fetches));
- out += sprintf(out, "hosed_count: %u\n",
+ seq_printf(m, "hosed_count: %u\n",
smi_get_stat(smi, hosed_count));
- out += sprintf(out, "complete_transactions: %u\n",
+ seq_printf(m, "complete_transactions: %u\n",
smi_get_stat(smi, complete_transactions));
- out += sprintf(out, "events: %u\n",
+ seq_printf(m, "events: %u\n",
smi_get_stat(smi, events));
- out += sprintf(out, "watchdog_pretimeouts: %u\n",
+ seq_printf(m, "watchdog_pretimeouts: %u\n",
smi_get_stat(smi, watchdog_pretimeouts));
- out += sprintf(out, "incoming_messages: %u\n",
+ seq_printf(m, "incoming_messages: %u\n",
smi_get_stat(smi, incoming_messages));
+ return 0;
+}
- return out - page;
+static int smi_si_stats_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, smi_si_stats_proc_show, PDE(inode)->data);
}
-static int param_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static const struct file_operations smi_si_stats_proc_ops = {
+ .open = smi_si_stats_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int smi_params_proc_show(struct seq_file *m, void *v)
{
- struct smi_info *smi = data;
+ struct smi_info *smi = m->private;
- return sprintf(page,
+ return seq_printf(m,
"%s,%s,0x%lx,rsp=%d,rsi=%d,rsh=%d,irq=%d,ipmb=%d\n",
si_to_str[smi->si_type],
addr_space_to_str[smi->io.addr_type],
@@ -2861,6 +2881,18 @@ static int param_read_proc(char *page, char **start, off_t off,
smi->slave_addr);
}
+static int smi_params_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, smi_params_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations smi_params_proc_ops = {
+ .open = smi_params_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
/*
* oem_data_avail_to_receive_msg_avail
* @info - smi_info structure with msg_flags set
@@ -3254,7 +3286,7 @@ static int try_smi_init(struct smi_info *new_smi)
}
rv = ipmi_smi_add_proc_entry(new_smi->intf, "type",
- type_file_read_proc,
+ &smi_type_proc_ops,
new_smi);
if (rv) {
dev_err(new_smi->dev, "Unable to create proc entry: %d\n", rv);
@@ -3262,7 +3294,7 @@ static int try_smi_init(struct smi_info *new_smi)
}
rv = ipmi_smi_add_proc_entry(new_smi->intf, "si_stats",
- stat_file_read_proc,
+ &smi_si_stats_proc_ops,
new_smi);
if (rv) {
dev_err(new_smi->dev, "Unable to create proc entry: %d\n", rv);
@@ -3270,7 +3302,7 @@ static int try_smi_init(struct smi_info *new_smi)
}
rv = ipmi_smi_add_proc_entry(new_smi->intf, "params",
- param_read_proc,
+ &smi_params_proc_ops,
new_smi);
if (rv) {
dev_err(new_smi->dev, "Unable to create proc entry: %d\n", rv);
--- a/include/linux/ipmi_smi.h
+++ b/include/linux/ipmi_smi.h
@@ -236,7 +236,7 @@ static inline void ipmi_free_smi_msg(struct ipmi_smi_msg *msg)
directory for this interface. Note that the entry will
automatically be dstroyed when the interface is destroyed. */
int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
- read_proc_t *read_proc,
+ const struct file_operations *proc_ops,
void *data);
#endif /* __LINUX_IPMI_SMI_H */
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