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scst_sysfs: Fix a build failure on kernels 2.6.2[678]

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The sysfs API is supported from kernel 2.6.26 on and uses the swap()
macro while the swap() macro was introduced in kernel 2.6.29. Hence
provide a definition of the swap() macro for kernels before 2.6.29.

Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>
[bvanassche: Moved swap() definition a few lines down and added #ifndef/#endif]


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5269 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2014-02-07 07:31:38 +00:00
parent 59f48c1f33
commit 987f9bd776
1 changed files with 7 additions and 0 deletions
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7
scst/include/scst.h
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@@ -119,6 +119,13 @@ typedef _Bool bool;
#define nr_cpumask_bits NR_CPUS
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
#ifndef swap
#define swap(a, b) \
do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
#endif
#endif
/* verify cpu argument to cpumask_* operators */
static inline unsigned int cpumask_check(unsigned int cpu)
{