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cfg80211: add regulatory_hint_core() to separate the core reg hint 

This makes the core hint path more readable and allows for us to
later make it obvious under what circumstances we need locking or not.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2009-02-21 00:04:23 -05:00 committed by John W. Linville
parent 80778f18c0
commit ba25c14142
1 changed files with 25 additions and 9 deletions
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34
net/wireless/reg.c
View File

@ -1050,11 +1050,7 @@ static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
case REGDOM_SET_BY_INIT:
return -EINVAL;
case REGDOM_SET_BY_CORE:
/*
* Always respect new wireless core hints, should only happen
* when updating the world regulatory domain at init.
*/
return 0;
return -EINVAL;
case REGDOM_SET_BY_COUNTRY_IE:
if (unlikely(!is_an_alpha2(alpha2)))
return -EINVAL;
@ -1183,6 +1179,26 @@ new_request:
return call_crda(alpha2);
}
static int regulatory_hint_core(const char *alpha2)
{
struct regulatory_request *request;
BUG_ON(last_request);
request = kzalloc(sizeof(struct regulatory_request),
GFP_KERNEL);
if (!request)
return -ENOMEM;
request->alpha2[0] = alpha2[0];
request->alpha2[1] = alpha2[1];
request->initiator = REGDOM_SET_BY_CORE;
last_request = request;
return call_crda(alpha2);
}
void regulatory_hint(struct wiphy *wiphy, const char *alpha2)
{
int r;
@ -1616,16 +1632,16 @@ int regulatory_init(void)
* stuck with the static values. We ignore "EU" code as
* that is not a valid ISO / IEC 3166 alpha2 */
if (ieee80211_regdom[0] != 'E' || ieee80211_regdom[1] != 'U')
err = __regulatory_hint(NULL, REGDOM_SET_BY_CORE,
ieee80211_regdom, 0, ENVIRON_ANY);
err = regulatory_hint_core(ieee80211_regdom);
#else
cfg80211_regdomain = cfg80211_world_regdom;
err = __regulatory_hint(NULL, REGDOM_SET_BY_CORE, "00", 0, ENVIRON_ANY);
if (err)
err = regulatory_hint_core("00");
if (err) {
printk(KERN_ERR "cfg80211: calling CRDA failed - "
"unable to update world regulatory domain, "
"using static definition\n");
}
#endif
return 0;