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

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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
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@ -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;