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cfg80211: remove wiphy_idx_valid

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This is pretty much useless since get_wiphy_idx()
always returns true since it's always called with
a valid wiphy pointer.

Acked-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2012-12-03 18:23:37 +01:00
parent 2f92212b71
commit f41737669d
4 changed files with 12 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
net/wireless/core.c
View File

@ -57,9 +57,6 @@ struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx)
{
struct cfg80211_registered_device *result = NULL, *rdev;
if (!wiphy_idx_valid(wiphy_idx))
return NULL;
assert_cfg80211_lock();
list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
@ -74,10 +71,8 @@ struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx)
int get_wiphy_idx(struct wiphy *wiphy)
{
struct cfg80211_registered_device *rdev;
if (!wiphy)
return WIPHY_IDX_STALE;
rdev = wiphy_to_dev(wiphy);
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
return rdev->wiphy_idx;
}
@ -86,9 +81,6 @@ struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
{
struct cfg80211_registered_device *rdev;
if (!wiphy_idx_valid(wiphy_idx))
return NULL;
assert_cfg80211_lock();
rdev = cfg80211_rdev_by_wiphy_idx(wiphy_idx);
@ -309,7 +301,7 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
rdev->wiphy_idx = wiphy_counter++;
if (unlikely(!wiphy_idx_valid(rdev->wiphy_idx))) {
if (unlikely(rdev->wiphy_idx < 0)) {
wiphy_counter--;
mutex_unlock(&cfg80211_mutex);
/* ugh, wrapped! */

16
net/wireless/core.h
View File

@ -18,6 +18,9 @@
#include <net/cfg80211.h>
#include "reg.h"
#define WIPHY_IDX_INVALID -1
struct cfg80211_registered_device {
const struct cfg80211_ops *ops;
struct list_head list;
@ -96,13 +99,6 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
return container_of(wiphy, struct cfg80211_registered_device, wiphy);
}
/* Note 0 is valid, hence phy0 */
static inline
bool wiphy_idx_valid(int wiphy_idx)
{
return wiphy_idx >= 0;
}
static inline void
cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
{
@ -126,12 +122,6 @@ static inline void assert_cfg80211_lock(void)
lockdep_assert_held(&cfg80211_mutex);
}
/*
* You can use this to mark a wiphy_idx as not having an associated wiphy.
* It guarantees cfg80211_rdev_by_wiphy_idx(wiphy_idx) will return NULL
*/
#define WIPHY_IDX_STALE -1
struct cfg80211_internal_bss {
struct list_head list;
struct rb_node rbn;

2
net/wireless/nl80211.c
View File

@ -8048,7 +8048,7 @@ void nl80211_send_reg_change_event(struct regulatory_request *request)
goto nla_put_failure;
}
if (wiphy_idx_valid(request->wiphy_idx) &&
if (request->wiphy_idx != WIPHY_IDX_INVALID &&
nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
goto nla_put_failure;

14
net/wireless/reg.c
View File

@ -1539,7 +1539,7 @@ static void reg_process_hint(struct regulatory_request *reg_request,
BUG_ON(!reg_request->alpha2);
if (wiphy_idx_valid(reg_request->wiphy_idx))
if (reg_request->wiphy_idx != WIPHY_IDX_INVALID)
wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx);
if (reg_initiator == NL80211_REGDOM_SET_BY_DRIVER && !wiphy) {
@ -1684,7 +1684,7 @@ int regulatory_hint_user(const char *alpha2,
if (!request)
return -ENOMEM;
request->wiphy_idx = WIPHY_IDX_STALE;
request->wiphy_idx = WIPHY_IDX_INVALID;
request->alpha2[0] = alpha2[0];
request->alpha2[1] = alpha2[1];
request->initiator = NL80211_REGDOM_SET_BY_USER;
@ -1709,9 +1709,6 @@ int regulatory_hint(struct wiphy *wiphy, const char *alpha2)
request->wiphy_idx = get_wiphy_idx(wiphy);
/* Must have registered wiphy first */
BUG_ON(!wiphy_idx_valid(request->wiphy_idx));
request->alpha2[0] = alpha2[0];
request->alpha2[1] = alpha2[1];
request->initiator = NL80211_REGDOM_SET_BY_DRIVER;
@ -1758,9 +1755,8 @@ void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
* We leave conflict resolution to the workqueue, where can hold
* cfg80211_mutex.
*/
if (likely(last_request->initiator ==
NL80211_REGDOM_SET_BY_COUNTRY_IE &&
wiphy_idx_valid(last_request->wiphy_idx)))
if (last_request->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE &&
last_request->wiphy_idx != WIPHY_IDX_INVALID)
goto out;
request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
@ -2317,7 +2313,7 @@ void wiphy_regulatory_deregister(struct wiphy *wiphy)
if (!request_wiphy || request_wiphy != wiphy)
goto out;
last_request->wiphy_idx = WIPHY_IDX_STALE;
last_request->wiphy_idx = WIPHY_IDX_INVALID;
last_request->country_ie_env = ENVIRON_ANY;
out:
mutex_unlock(&reg_mutex);