svn commit: r330389 - head/sys/compat/linuxkpi/common/include/linux

[Hans Petter Selasky]

Author: hselasky
Date: Sun Mar  4 18:10:18 2018
New Revision: 330389
URL: https://svnweb.freebsd.org/changeset/base/330389

Log:
  Implement for_each_clear_bit() function macro in the LinuxKPI.
  
  MFC after:	1 week
  Submitted by:	Johannes Lundberg <johalun0 at gmail.com>
  Sponsored by:	Mellanox Technologies
  Sponsored by:	Limelight Networks

Modified:
  head/sys/compat/linuxkpi/common/include/linux/bitops.h

Modified: head/sys/compat/linuxkpi/common/include/linux/bitops.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/bitops.h	Sun Mar  4 18:08:21 2018	(r330388)
+++ head/sys/compat/linuxkpi/common/include/linux/bitops.h	Sun Mar  4 18:10:18 2018	(r330389)
@@ -390,6 +390,10 @@ done:
 	     (bit) < (size);					\
 	     (bit) = find_next_bit((addr), (size), (bit) + 1))
 
+#define	for_each_clear_bit(bit, addr, size) \
+	for ((bit) = find_first_zero_bit((addr), (size));		\
+	     (bit) < (size);						\
+	     (bit) = find_next_zero_bit((addr), (size), (bit) + 1))
 
 static inline uint64_t
 sign_extend64(uint64_t value, int index)