ath9k_hw: small optimization in ar9002_hw_get_isr
ah->config.rx_intr_mitigation does not need to be checked before checking the rx interrupt mask for AR_ISR_RXMINTR or AR_ISR_RXINTM, as those interrupts will be masked out if rx interrupt mitigation is disabled. Avoid reading AR_ISR_S5_S twice by reordering the code to be more concise. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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