Re: [patch] isdn: fix a wrapping bug in isdn_ppp_ioctl()

Sorry, I was misremembering the history of the bit ops.  There has
historically been issues with varying bit order, but noadays set_bit is
always defined consistently with C shifts.

But another issue, set_bit is an atomic operation which may be
significantly more expensive than the equivalent C operation.  Better
use __set_bit when atomicity is not needed.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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