From: Andrew Morton <akpm@linux-foundation.org>
To: Dave Airlie <airlied@linux.ie>
Cc: linux-kernel@vger.kernel.org
Subject: cmpxchg is not available to generic code
Date: Thu, 19 Jul 2007 00:05:49 -0700 [thread overview]
Message-ID: <20070719000549.1e57b5b2.akpm@linux-foundation.org> (raw)
arm:
drivers/char/drm/drm_lock.c: In function `drm_lock_take':
drivers/char/drm/drm_lock.c:221: error: implicit declaration of function `cmpxchg'
You might be able to use atomic_cmpxchg, which _is_ present
on all architectures. Or use a spinlock.
What's that code doing anyway? driver-private locking primitives?
next reply other threads:[~2007-07-19 7:06 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-19 7:05 Andrew Morton [this message]
2007-07-19 7:27 ` cmpxchg is not available to generic code David Miller
2007-07-19 8:15 ` Dave Airlie
2007-07-19 8:21 ` Andrew Morton
2007-07-19 8:23 ` Dave Airlie
2007-07-23 6:48 ` Nick Piggin
2007-07-19 20:54 ` David Miller
2007-07-19 20:58 ` David Miller
2007-07-19 8:02 ` Dave Airlie
2007-07-19 8:10 ` Andrew Morton
2007-07-19 8:19 ` Dave Airlie
2007-07-19 8:36 ` Andrew Morton
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