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mac80211: allow configure_filter callback to sleep

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Over time, a whole bunch of drivers have come up
with their own scheme to delay the configure_filter
operation to a workqueue. To be able to simplify
things, allow configure_filter to sleep, and add
a new prepare_multicast callback that drivers that
need the multicast address list implement. This new
callback must be atomic, but most drivers either
don't care or just calculate a hash which can be
done atomically and then uploaded to the hardware
non-atomically.

A cursory look suggests that at76c50x-usb, ar9170,
mwl8k (which is actually very broken now), rt2x00,
wl1251, wl1271 and zd1211 should make use of this
new capability.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2009-08-17 16:16:53 +02:00
committed by John W. Linville
parent ea416a793d
commit 3ac64beecd
28 changed files with 298 additions and 170 deletions
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2
drivers/net/wireless/b43/main.c
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@@ -3679,7 +3679,7 @@ out_unlock:
static void b43_op_configure_filter(struct ieee80211_hw *hw,
unsigned int changed, unsigned int *fflags,
int mc_count, struct dev_addr_list *mc_list)
u64 multicast)
{
struct b43_wl *wl = hw_to_b43_wl(hw);
struct b43_wldev *dev = wl->current_dev;