Thread (35 messages) 35 messages, 6 authors, 2014-11-13

Re: [PATCH 1/5] kexec: Fix make headers_check

From: Vivek Goyal <vgoyal@redhat.com>
Date: 2014-08-25 17:23:34
Also in: kexec, lkml

On Fri, Aug 22, 2014 at 06:39:47PM +0000, Geoff Levand wrote:
Remove the unneded declaration for a kexec_load() routine.

Fixes errors like these when running 'make headers_check':

include/uapi/linux/kexec.h: userspace cannot reference function or variable defined in the kernel

Signed-off-by: Geoff Levand <geoff@infradead.org>
I think Paul Bolle tried to remove this in the past and maximilian
had objections.

http://lists.infradead.org/pipermail/kexec/2014-January/010902.html

I can't see that how exporting kernel prototype helps here. kexec-tools
seems to be using syscall(__NR_kexec_load) directly for non-xen case. So
I would be fine with removing this definition. Just trying to make sure
that it does not break any other library or users of this declaration.

Thanks
Vivek

quoted hunk ↗ jump to hunk
---
 include/uapi/linux/kexec.h | 6 ------
 1 file changed, 6 deletions(-)
diff --git a/include/uapi/linux/kexec.h b/include/uapi/linux/kexec.h
index 6925f5b..99048e5 100644
--- a/include/uapi/linux/kexec.h
+++ b/include/uapi/linux/kexec.h
@@ -55,12 +55,6 @@ struct kexec_segment {
 	size_t memsz;
 };
 
-/* Load a new kernel image as described by the kexec_segment array
- * consisting of passed number of segments at the entry-point address.
- * The flags allow different useage types.
- */
-extern int kexec_load(void *, size_t, struct kexec_segment *,
-		unsigned long int);
 #endif /* __KERNEL__ */
 
 #endif /* _UAPILINUX_KEXEC_H */
-- 
1.9.1



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