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Felix Fietkau
04017929f6
mt76_mmio_write_copy() and mt76_mmio_read_copy() iterate up to
ALIGN(len, 4), so a length that is not a multiple of four reads past the
source buffer (write_copy) or writes past the destination (read_copy).
Copy the aligned body in the loop and handle the remaining tail through a
4-byte bounce buffer, keeping the register access width unchanged.
Fixes: 2df00805f7db ("wifi: mt76: mmio_*_copy fix byte order and alignment")
Signed-off-by: Felix Fietkau <[email protected]>