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authorHauke Mehrtens <hauke@hauke-m.de>2018-03-04 23:57:11 +0100
committerJohannes Berg <johannes.berg@intel.com>2018-03-21 09:19:32 +0100
commit3b38e4706f3db6bfe5b5ae382743a79e8450bf21 (patch)
tree5a4d04e1645cee35d051c405023908406252abac /backport
parentc2df02c2e024b6e10a0d34e4de98324f5f3ca00b (diff)
header: nospec.h: provide dummy header file
Older kernel versions do not have the include linux/nospec.h with the function array_index_nospec, provide a dummy implementation for these kernel versions and forward the call the the real version for capable kernel versions. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'backport')
-rw-r--r--backport/backport-include/linux/nospec.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/backport/backport-include/linux/nospec.h b/backport/backport-include/linux/nospec.h
new file mode 100644
index 00000000..50cf4673
--- /dev/null
+++ b/backport/backport-include/linux/nospec.h
@@ -0,0 +1,12 @@
+#ifndef _BACKPORT_LINUX_NOSPEC_H
+#define _BACKPORT_LINUX_NOSPEC_H
+
+#if LINUX_VERSION_IS_GEQ(4,14,18) || \
+ LINUX_VERSION_IN_RANGE(4,9,81, 4,10,0) || \
+ LINUX_VERSION_IN_RANGE(4,4,118, 4,5,0)
+#include_next <linux/nospec.h>
+#else
+#define array_index_nospec(index, size) (index)
+#endif
+
+#endif /* _BACKPORT_LINUX_NOSPEC_H */