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s390/sclp_async: replace callhome proc handler with generic one
Reuse generic proc_dointvec_minmax proc handler instead of proc_handler_callhome. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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5bedf8aa03
commit
f149371e9e
1 changed files with 7 additions and 31 deletions
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@ -64,42 +64,18 @@ static struct notifier_block call_home_panic_nb = {
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.priority = INT_MAX,
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};
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static int proc_handler_callhome(struct ctl_table *ctl, int write,
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void __user *buffer, size_t *count,
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loff_t *ppos)
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{
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unsigned long val;
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int len, rc;
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char buf[3];
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if (!*count || (*ppos && !write)) {
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*count = 0;
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return 0;
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}
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if (!write) {
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len = snprintf(buf, sizeof(buf), "%d\n", callhome_enabled);
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rc = copy_to_user(buffer, buf, sizeof(buf));
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if (rc != 0)
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return -EFAULT;
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} else {
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len = *count;
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rc = kstrtoul_from_user(buffer, len, 0, &val);
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if (rc)
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return rc;
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if (val != 0 && val != 1)
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return -EINVAL;
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callhome_enabled = val;
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}
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*count = len;
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*ppos += len;
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return 0;
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}
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static int zero;
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static int one = 1;
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static struct ctl_table callhome_table[] = {
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{
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.procname = "callhome",
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.data = &callhome_enabled,
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.maxlen = sizeof(int),
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.mode = 0644,
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.proc_handler = proc_handler_callhome,
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.proc_handler = proc_dointvec_minmax,
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.extra1 = &zero,
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.extra2 = &one,
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},
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{}
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};
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