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path: root/drivers/char/random.c
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Diffstat (limited to 'drivers/char/random.c')
-rw-r--r--drivers/char/random.c54
1 files changed, 7 insertions, 47 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 04b505e5a5e2..dcd08635cf1b 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1257,94 +1257,54 @@ static int proc_do_uuid(ctl_table *table, int write,
return proc_dostring(&fake_table, write, buffer, lenp, ppos);
}
-static int uuid_strategy(ctl_table *table,
- void __user *oldval, size_t __user *oldlenp,
- void __user *newval, size_t newlen)
-{
- unsigned char tmp_uuid[16], *uuid;
- unsigned int len;
-
- if (!oldval || !oldlenp)
- return 1;
-
- uuid = table->data;
- if (!uuid) {
- uuid = tmp_uuid;
- uuid[8] = 0;
- }
- if (uuid[8] == 0)
- generate_random_uuid(uuid);
-
- if (get_user(len, oldlenp))
- return -EFAULT;
- if (len) {
- if (len > 16)
- len = 16;
- if (copy_to_user(oldval, uuid, len) ||
- put_user(len, oldlenp))
- return -EFAULT;
- }
- return 1;
-}
-
static int sysctl_poolsize = INPUT_POOL_WORDS * 32;
ctl_table random_table[] = {
{
- .ctl_name = RANDOM_POOLSIZE,
.procname = "poolsize",
.data = &sysctl_poolsize,
.maxlen = sizeof(int),
.mode = 0444,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
- .ctl_name = RANDOM_ENTROPY_COUNT,
.procname = "entropy_avail",
.maxlen = sizeof(int),
.mode = 0444,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
.data = &input_pool.entropy_count,
},
{
- .ctl_name = RANDOM_READ_THRESH,
.procname = "read_wakeup_threshold",
.data = &random_read_wakeup_thresh,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
+ .proc_handler = proc_dointvec_minmax,
.extra1 = &min_read_thresh,
.extra2 = &max_read_thresh,
},
{
- .ctl_name = RANDOM_WRITE_THRESH,
.procname = "write_wakeup_threshold",
.data = &random_write_wakeup_thresh,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
+ .proc_handler = proc_dointvec_minmax,
.extra1 = &min_write_thresh,
.extra2 = &max_write_thresh,
},
{
- .ctl_name = RANDOM_BOOT_ID,
.procname = "boot_id",
.data = &sysctl_bootid,
.maxlen = 16,
.mode = 0444,
- .proc_handler = &proc_do_uuid,
- .strategy = &uuid_strategy,
+ .proc_handler = proc_do_uuid,
},
{
- .ctl_name = RANDOM_UUID,
.procname = "uuid",
.maxlen = 16,
.mode = 0444,
- .proc_handler = &proc_do_uuid,
- .strategy = &uuid_strategy,
+ .proc_handler = proc_do_uuid,
},
- { .ctl_name = 0 }
+ { }
};
#endif /* CONFIG_SYSCTL */