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From 052a8d24bc670ab6503e21dfd2fb8bccfc22aa73 Mon Sep 17 00:00:00 2001
From: Andrew Cooper <andrew.cooper3@citrix.com>
Date: Tue, 8 Aug 2023 14:53:42 +0100
Subject: [PATCH 14/55] tools/vchan: Fix
-Wsingle-bit-bitfield-constant-conversion
Gitlab reports:
node.c:158:17: error: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Werror,-Wsingle-bit-bitfield-constant-conversion]
ctrl->blocking = 1;
^ ~
1 error generated.
make[4]: *** [/builds/xen-project/people/andyhhp/xen/tools/vchan/../../tools/Rules.mk:188: node.o] Error 1
In Xen 4.18, this was fixed with c/s 99ab02f63ea8 ("tools: convert bitfields
to unsigned type") but this is an ABI change which can't be backported.
Swich 1 for -1 to provide a minimally invasive way to fix the build.
No functional change.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
---
tools/vchan/node.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/vchan/node.c b/tools/vchan/node.c
index f1638f013d..a28293b720 100644
--- a/tools/vchan/node.c
+++ b/tools/vchan/node.c
@@ -155,7 +155,7 @@ int main(int argc, char **argv)
perror("libxenvchan_*_init");
exit(1);
}
- ctrl->blocking = 1;
+ ctrl->blocking = -1;
srand(seed);
fprintf(stderr, "seed=%d\n", seed);
--
2.42.0
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