uapi/linux/irqnr.h was emitted by the UAPI disintegration script as an empty
file because the parent linux/irqnr.h had no UAPI stuff in it, despite being
marked with "header-y".
Unfortunately, the patch program deletes the empty file when applying a kernel
patch.
It's not clear why this file is part of the UAPI at all. Looking in:
/usr/include/linux/irqnr.h
there's nothing there but a header reinclusion guard and a comment.
So just stick a comment in there as a placeholder.
Without this, if the kernel is fabricated from, say, a tarball and a patch, you
can get this error when building x86_64 or usermode Linux (and probably
others):
include/linux/irqnr.h:4:30: fatal error: uapi/linux/irqnr.h: No such file or
directory
Reported-by: Randy Dunlap <[email protected]>
Reported-by: Alessandro Suardi <[email protected]>
Signed-off-by: David Howells <[email protected]>
cc: Randy Dunlap <[email protected]>
cc: Alessandro Suardi <[email protected]>
---
include/uapi/linux/irqnr.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/uapi/linux/irqnr.h b/include/uapi/linux/irqnr.h
index e69de29..ae5704f 100644
--- a/include/uapi/linux/irqnr.h
+++ b/include/uapi/linux/irqnr.h
@@ -0,0 +1,4 @@
+/*
+ * There isn't anything here anymore, but the file must not be empty or patch
+ * will delete it.
+ */
--
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