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package/xen: fix build with gcc 11

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Fix the following build failure with gcc 11:

linux.c:165:50: error: argument 7 of type 'const xen_pfn_t[]' {aka 'const long long unsigned int[]'} declared as an ordinary array [-Werror=vla-parameter]
  165 |                                  const xen_pfn_t arr[/*num*/], int err[/*num*/])
      |                                  ~~~~~~~~~~~~~~~~^~~~~~~~~~~~
In file included from linux.c:29:
private.h:35:50: note: previously declared as a variable length array 'const xen_pfn_t[num]' {aka 'const long long unsigned int[num]'}
   35 |                                  const xen_pfn_t arr[num], int err[num]);
      |                                  ~~~~~~~~~~~~~~~~^~~~~~~~

Fixes:
 - http://autobuild.buildroot.org/results/f70d060cf50254694113f19f50a8ef96ef33dd1a

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Fabrice Fontaine 2021-08-06 23:25:06 +02:00 committed by Yann E. MORIN
parent 8f7d7d9d86
commit b53cbf680c
1 changed files with 33 additions and 0 deletions
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33
package/xen/0002-libs-foreignmemory-Fix-osdep_xenforeignmemory_map-prototype.patch Normal file
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@ -0,0 +1,33 @@
From 5d3e4ebb5c71477d74a0c503438545a0126d3863 Mon Sep 17 00:00:00 2001
From: Anthony PERARD <anthony.perard@citrix.com>
Date: Tue, 1 Jun 2021 16:41:47 +0100
Subject: [PATCH] libs/foreignmemory: Fix osdep_xenforeignmemory_map prototype
Commit cf8c4d3d13b8 made some preparation to have one day
variable-length-array argument, but didn't declare the array in the
function prototype the same way as in the function definition. And now
GCC 11 complains about it.
Fixes: cf8c4d3d13b8 ("tools/libs/foreignmemory: pull array length argument to map forward")
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
[Retrieved from:
https://github.com/xen-project/xen/commit/5d3e4ebb5c71477d74a0c503438545a0126d3863]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
tools/libs/foreignmemory/private.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/libs/foreignmemory/private.h b/tools/libs/foreignmemory/private.h
index 1ee3626dd278..5bb0cefb0987 100644
--- a/tools/libs/foreignmemory/private.h
+++ b/tools/libs/foreignmemory/private.h
@@ -32,7 +32,7 @@ int osdep_xenforeignmemory_close(xenforeignmemory_handle *fmem);
void *osdep_xenforeignmemory_map(xenforeignmemory_handle *fmem,
uint32_t dom, void *addr,
int prot, int flags, size_t num,
- const xen_pfn_t arr[num], int err[num]);
+ const xen_pfn_t arr[/*num*/], int err[/*num*/]);
int osdep_xenforeignmemory_unmap(xenforeignmemory_handle *fmem,
void *addr, size_t num);