Merge branch 'linus' into x86/i8259
[sfrench/cifs-2.6.git] / arch / mips / lasat / sysctl.c
index 699ab1886ceba8deeff05f626e23597a8b560ee8..866881ec0cf81ed603705f8c01cebab3147def2f 100644 (file)
 #include <linux/string.h>
 #include <linux/net.h>
 #include <linux/inet.h>
-#include <linux/mutex.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
-#include "sysctl.h"
-#include "ds1603.h"
+#include <asm/time.h>
 
-static DEFINE_MUTEX(lasat_info_mutex);
+#ifdef CONFIG_DS1603
+#include "ds1603.h"
+#endif
 
 /* Strategy function to write EEPROM after changing string entry */
 int sysctl_lasatstring(ctl_table *table, int *name, int nlen,
@@ -43,18 +43,16 @@ int sysctl_lasatstring(ctl_table *table, int *name, int nlen,
                void *newval, size_t newlen)
 {
        int r;
-       mutex_lock(&lasat_info_mutex);
+
        r = sysctl_string(table, name,
                          nlen, oldval, oldlenp, newval, newlen);
-       if (r < 0) {
-               mutex_unlock(&lasat_info_mutex);
+       if (r < 0)
                return r;
-       }
-       if (newval && newlen) {
+
+       if (newval && newlen)
                lasat_write_eeprom_info();
-       }
-       mutex_unlock(&lasat_info_mutex);
-       return 1;
+
+       return 0;
 }
 
 
@@ -63,14 +61,13 @@ int proc_dolasatstring(ctl_table *table, int write, struct file *filp,
                       void *buffer, size_t *lenp, loff_t *ppos)
 {
        int r;
-       mutex_lock(&lasat_info_mutex);
+
        r = proc_dostring(table, write, filp, buffer, lenp, ppos);
-       if ( (!write) || r) {
-               mutex_unlock(&lasat_info_mutex);
+       if ((!write) || r)
                return r;
-       }
+
        lasat_write_eeprom_info();
-       mutex_unlock(&lasat_info_mutex);
+
        return 0;
 }
 
@@ -79,39 +76,38 @@ int proc_dolasatint(ctl_table *table, int write, struct file *filp,
                       void *buffer, size_t *lenp, loff_t *ppos)
 {
        int r;
-       mutex_lock(&lasat_info_mutex);
+
        r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
-       if ( (!write) || r) {
-               mutex_unlock(&lasat_info_mutex);
+       if ((!write) || r)
                return r;
-       }
+
        lasat_write_eeprom_info();
-       mutex_unlock(&lasat_info_mutex);
+
        return 0;
 }
 
+#ifdef CONFIG_DS1603
 static int rtctmp;
 
-#ifdef CONFIG_DS1603
 /* proc function to read/write RealTime Clock */
 int proc_dolasatrtc(ctl_table *table, int write, struct file *filp,
                       void *buffer, size_t *lenp, loff_t *ppos)
 {
        int r;
-       mutex_lock(&lasat_info_mutex);
+
        if (!write) {
-               rtctmp = ds1603_read();
+               rtctmp = read_persistent_clock();
                /* check for time < 0 and set to 0 */
                if (rtctmp < 0)
                        rtctmp = 0;
        }
        r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
-       if ( (!write) || r) {
-               mutex_unlock(&lasat_info_mutex);
+       if (r)
                return r;
-       }
-       ds1603_set(rtctmp);
-       mutex_unlock(&lasat_info_mutex);
+
+       if (write)
+               rtc_mips_set_mmss(rtctmp);
+
        return 0;
 }
 #endif
@@ -122,17 +118,15 @@ int sysctl_lasat_intvec(ctl_table *table, int *name, int nlen,
                    void *newval, size_t newlen)
 {
        int r;
-       mutex_lock(&lasat_info_mutex);
+
        r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen);
-       if (r < 0) {
-               mutex_unlock(&lasat_info_mutex);
+       if (r < 0)
                return r;
-       }
-       if (newval && newlen) {
+
+       if (newval && newlen)
                lasat_write_eeprom_info();
-       }
-       mutex_unlock(&lasat_info_mutex);
-       return 1;
+
+       return 0;
 }
 
 #ifdef CONFIG_DS1603
@@ -142,49 +136,28 @@ int sysctl_lasat_rtc(ctl_table *table, int *name, int nlen,
                    void *newval, size_t newlen)
 {
        int r;
-       mutex_lock(&lasat_info_mutex);
-       rtctmp = ds1603_read();
+
+       rtctmp = read_persistent_clock();
        if (rtctmp < 0)
                rtctmp = 0;
        r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen);
-       if (r < 0) {
-               mutex_unlock(&lasat_info_mutex);
+       if (r < 0)
                return r;
-       }
-       if (newval && newlen) {
-               ds1603_set(rtctmp);
-       }
-       mutex_unlock(&lasat_info_mutex);
-       return 1;
+       if (newval && newlen)
+               rtc_mips_set_mmss(rtctmp);
+
+       return r;
 }
 #endif
 
 #ifdef CONFIG_INET
-static char lasat_bcastaddr[16];
-
-void update_bcastaddr(void)
-{
-       unsigned int ip;
-
-       ip = (lasat_board_info.li_eeprom_info.ipaddr &
-               lasat_board_info.li_eeprom_info.netmask) |
-               ~lasat_board_info.li_eeprom_info.netmask;
-
-       sprintf(lasat_bcastaddr, "%d.%d.%d.%d",
-                       (ip      ) & 0xff,
-                       (ip >>  8) & 0xff,
-                       (ip >> 16) & 0xff,
-                       (ip >> 24) & 0xff);
-}
-
-static char proc_lasat_ipbuf[32];
-/* Parsing of IP address */
 int proc_lasat_ip(ctl_table *table, int write, struct file *filp,
                       void *buffer, size_t *lenp, loff_t *ppos)
 {
-       int len;
-        unsigned int ip;
+       unsigned int ip;
        char *p, c;
+       int len;
+       char ipbuf[32];
 
        if (!table->data || !table->maxlen || !*lenp ||
            (*ppos && !write)) {
@@ -192,115 +165,88 @@ int proc_lasat_ip(ctl_table *table, int write, struct file *filp,
                return 0;
        }
 
-       mutex_lock(&lasat_info_mutex);
        if (write) {
                len = 0;
                p = buffer;
                while (len < *lenp) {
-                       if(get_user(c, p++)) {
-                               mutex_unlock(&lasat_info_mutex);
+                       if (get_user(c, p++))
                                return -EFAULT;
-                       }
                        if (c == 0 || c == '\n')
                                break;
                        len++;
                }
-               if (len >= sizeof(proc_lasat_ipbuf)-1)
-                       len = sizeof(proc_lasat_ipbuf) - 1;
-               if (copy_from_user(proc_lasat_ipbuf, buffer, len))
-               {
-                       mutex_unlock(&lasat_info_mutex);
+               if (len >= sizeof(ipbuf)-1)
+                       len = sizeof(ipbuf) - 1;
+               if (copy_from_user(ipbuf, buffer, len))
                        return -EFAULT;
-               }
-               proc_lasat_ipbuf[len] = 0;
+               ipbuf[len] = 0;
                *ppos += *lenp;
                /* Now see if we can convert it to a valid IP */
-               ip = in_aton(proc_lasat_ipbuf);
+               ip = in_aton(ipbuf);
                *(unsigned int *)(table->data) = ip;
                lasat_write_eeprom_info();
        } else {
                ip = *(unsigned int *)(table->data);
-               sprintf(proc_lasat_ipbuf, "%d.%d.%d.%d",
-                       (ip      ) & 0xff,
+               sprintf(ipbuf, "%d.%d.%d.%d",
+                       (ip)       & 0xff,
                        (ip >>  8) & 0xff,
                        (ip >> 16) & 0xff,
                        (ip >> 24) & 0xff);
-               len = strlen(proc_lasat_ipbuf);
+               len = strlen(ipbuf);
                if (len > *lenp)
                        len = *lenp;
                if (len)
-                       if(copy_to_user(buffer, proc_lasat_ipbuf, len)) {
-                               mutex_unlock(&lasat_info_mutex);
+                       if (copy_to_user(buffer, ipbuf, len))
                                return -EFAULT;
-                       }
                if (len < *lenp) {
-                       if(put_user('\n', ((char *) buffer) + len)) {
-                               mutex_unlock(&lasat_info_mutex);
+                       if (put_user('\n', ((char *) buffer) + len))
                                return -EFAULT;
-                       }
                        len++;
                }
                *lenp = len;
                *ppos += len;
        }
-       update_bcastaddr();
-       mutex_unlock(&lasat_info_mutex);
+
        return 0;
 }
-#endif /* defined(CONFIG_INET) */
+#endif
 
-static int sysctl_lasat_eeprom_value(ctl_table *table, int *name, int nlen,
+static int sysctl_lasat_prid(ctl_table *table, int *name, int nlen,
                                     void *oldval, size_t *oldlenp,
                                     void *newval, size_t newlen)
 {
        int r;
 
-       mutex_lock(&lasat_info_mutex);
        r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen);
-       if (r < 0) {
-               mutex_unlock(&lasat_info_mutex);
+       if (r < 0)
                return r;
-       }
-
-       if (newval && newlen)
-       {
-               if (name && *name == LASAT_PRID)
-                       lasat_board_info.li_eeprom_info.prid = *(int*)newval;
-
+       if (newval && newlen) {
+               lasat_board_info.li_eeprom_info.prid = *(int *)newval;
                lasat_write_eeprom_info();
                lasat_init_board_info();
        }
-       mutex_unlock(&lasat_info_mutex);
-
        return 0;
 }
 
-int proc_lasat_eeprom_value(ctl_table *table, int write, struct file *filp,
+int proc_lasat_prid(ctl_table *table, int write, struct file *filp,
                       void *buffer, size_t *lenp, loff_t *ppos)
 {
        int r;
-       mutex_lock(&lasat_info_mutex);
+
        r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
-       if ( (!write) || r) {
-               mutex_unlock(&lasat_info_mutex);
+       if (r < 0)
                return r;
+       if (write) {
+               lasat_board_info.li_eeprom_info.prid =
+                       lasat_board_info.li_prid;
+               lasat_write_eeprom_info();
+               lasat_init_board_info();
        }
-       if (filp && filp->f_path.dentry)
-       {
-               if (!strcmp(filp->f_path.dentry->d_name.name, "prid"))
-                       lasat_board_info.li_eeprom_info.prid = lasat_board_info.li_prid;
-               if (!strcmp(filp->f_path.dentry->d_name.name, "debugaccess"))
-                       lasat_board_info.li_eeprom_info.debugaccess = lasat_board_info.li_debugaccess;
-       }
-       lasat_write_eeprom_info();
-       mutex_unlock(&lasat_info_mutex);
        return 0;
 }
 
 extern int lasat_boot_to_service;
 
-#ifdef CONFIG_SYSCTL
-
 static ctl_table lasat_table[] = {
        {
                .ctl_name       = CTL_UNNUMBERED,
@@ -335,8 +281,8 @@ static ctl_table lasat_table[] = {
                .data           = &lasat_board_info.li_prid,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_lasat_eeprom_value,
-               .strategy       = &sysctl_lasat_eeprom_value
+               .proc_handler   = &proc_lasat_prid,
+               .strategy       = &sysctl_lasat_prid
        },
 #ifdef CONFIG_INET
        {
@@ -349,7 +295,7 @@ static ctl_table lasat_table[] = {
                .strategy       = &sysctl_lasat_intvec
        },
        {
-               .ctl_name       = LASAT_NETMASK,
+               .ctl_name       = CTL_UNNUMBERED,
                .procname       = "netmask",
                .data           = &lasat_board_info.li_eeprom_info.netmask,
                .maxlen         = sizeof(int),
@@ -357,21 +303,13 @@ static ctl_table lasat_table[] = {
                .proc_handler   = &proc_lasat_ip,
                .strategy       = &sysctl_lasat_intvec
        },
-       {
-               .ctl_name       = CTL_UNNUMBERED,
-               .procname       = "bcastaddr",
-               .data           = &lasat_bcastaddr,
-               .maxlen         = sizeof(lasat_bcastaddr),
-               .mode           = 0600,
-               .proc_handler   = &proc_dostring,
-               .strategy       = &sysctl_string
-       },
 #endif
        {
                .ctl_name       = CTL_UNNUMBERED,
                .procname       = "passwd_hash",
                .data           = &lasat_board_info.li_eeprom_info.passwd_hash,
-               .maxlen         = sizeof(lasat_board_info.li_eeprom_info.passwd_hash),
+               .maxlen         =
+                       sizeof(lasat_board_info.li_eeprom_info.passwd_hash),
                .mode           = 0600,
                .proc_handler   = &proc_dolasatstring,
                .strategy       = &sysctl_lasatstring
@@ -402,7 +340,7 @@ static ctl_table lasat_table[] = {
                .data           = &lasat_board_info.li_namestr,
                .maxlen         = sizeof(lasat_board_info.li_namestr),
                .mode           = 0444,
-               .proc_handler   =  &proc_dostring,
+               .proc_handler   = &proc_dostring,
                .strategy       = &sysctl_string
        },
        {
@@ -433,9 +371,12 @@ static int __init lasat_register_sysctl(void)
 
        lasat_table_header =
                register_sysctl_table(lasat_root_table);
+       if (!lasat_table_header) {
+               printk(KERN_ERR "Unable to register LASAT sysctl\n");
+               return -ENOMEM;
+       }
 
        return 0;
 }
 
 __initcall(lasat_register_sysctl);
-#endif /* CONFIG_SYSCTL */