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mac80211: convert HW flags to unsigned long bitmap

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As we're running out of hardware capability flags pretty quickly,
convert them to use the regular test_bit() style unsigned long
bitmaps.

This introduces a number of helper functions/macros to set and to
test the bits, along with new debugfs code.

The occurrences of an explicit __clear_bit() are intentional, the
drivers were never supposed to change their supported bits on the
fly. We should investigate changing this to be a per-frame flag.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2015-06-02 21:39:54 +02:00
parent 206c59d1d7
commit 30686bf7f5
59 changed files with 446 additions and 422 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
net/mac80211/main.c
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@@ -661,7 +661,7 @@ static int ieee80211_init_cipher_suites(struct ieee80211_local *local)
{
bool have_wep = !(IS_ERR(local->wep_tx_tfm) ||
IS_ERR(local->wep_rx_tfm));
bool have_mfp = local->hw.flags & IEEE80211_HW_MFP_CAPABLE;
bool have_mfp = ieee80211_hw_check(&local->hw, MFP_CAPABLE);
int n_suites = 0, r = 0, w = 0;
u32 *suites;
static const u32 cipher_suites[] = {
@@ -681,7 +681,7 @@ static int ieee80211_init_cipher_suites(struct ieee80211_local *local)
WLAN_CIPHER_SUITE_BIP_GMAC_256,
};
if (local->hw.flags & IEEE80211_HW_SW_CRYPTO_CONTROL ||
if (ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL) ||
local->hw.wiphy->cipher_suites) {
/* If the driver advertises, or doesn't support SW crypto,
* we only need to remove WEP if necessary.
@@ -797,7 +797,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
netdev_features_t feature_whitelist;
struct cfg80211_chan_def dflt_chandef = {};
if (hw->flags & IEEE80211_HW_QUEUE_CONTROL &&
if (ieee80211_hw_check(hw, QUEUE_CONTROL) &&
(local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE ||
local->hw.offchannel_tx_hw_queue >= local->hw.queues))
return -EINVAL;
@@ -945,9 +945,9 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
/* mac80211 supports control port protocol changing */
local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL;
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
if (ieee80211_hw_check(&local->hw, SIGNAL_DBM)) {
local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
} else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) {
} else if (ieee80211_hw_check(&local->hw, SIGNAL_UNSPEC)) {
local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
if (hw->max_signal <= 0) {
result = -EINVAL;
@@ -1001,7 +1001,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
/* mac80211 supports eCSA, if the driver supports STA CSA at all */
if (local->hw.flags & IEEE80211_HW_CHANCTX_STA_CSA)
if (ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA))
local->ext_capa[0] |= WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING;
local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CSA_COUNTERS_NUM;
@@ -1069,7 +1069,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
/* add one default STA interface if supported */
if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) &&
!(hw->flags & IEEE80211_HW_NO_AUTO_VIF)) {
!ieee80211_hw_check(hw, NO_AUTO_VIF)) {
result = ieee80211_if_add(local, "wlan%d", NET_NAME_ENUM, NULL,
NL80211_IFTYPE_STATION, NULL);
if (result)