wl1271: Allocate TX descriptors more efficiently
On each TX descriptor allocation, a free entry is found by traversing the TX descriptors array. Improve this by holding a bitmap of all TX descriptors, and using efficient bit operations to search for free entries. Signed-off-by:Ido Yariv <ido@wizery.com> Reviewed-by:
Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by:
Luciano Coelho <luciano.coelho@nokia.com>
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