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-rw-r--r--meta/recipes-rt/rt-tests/files/hackbench-fix-error-check.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/meta/recipes-rt/rt-tests/files/hackbench-fix-error-check.patch b/meta/recipes-rt/rt-tests/files/hackbench-fix-error-check.patch
new file mode 100644
index 0000000000..d17fdff455
--- /dev/null
+++ b/meta/recipes-rt/rt-tests/files/hackbench-fix-error-check.patch
@@ -0,0 +1,41 @@
1childinfo_t is a union that contains both signed (error) and unsigned
2(threadid) members. Thus a large threadid could appear as a negative error
3value, which will cause unexpected failures.
4
5childinfo_t should be changed to a struct, but it could potentially affect the
6performance. So we keep it as a union but only check error against -1. There is
7still a chance of false alarm but it's small.
8
9Upstream-Status: Pending
10
11Signed-off-by: Song.Li <Song.Li@windriver.com>
12Signed-off-by: Jesse Zhang <sen.zhang@windriver.com>
13---
14 src/hackbench/hackbench.c | 4 ++--
15 1 file changed, 2 insertions(+), 2 deletions(-)
16
17diff --git a/src/hackbench/hackbench.c b/src/hackbench/hackbench.c
18index 8baeb23..dc0de8f 100644
19--- a/src/hackbench/hackbench.c
20+++ b/src/hackbench/hackbench.c
21@@ -317,7 +317,7 @@ static unsigned int group(childinfo_t *child,
22 ctx->wakefd = wakefd;
23
24 child[tab_offset+i] = create_worker(ctx, (void *)(void *)receiver);
25- if( child[tab_offset+i].error < 0 ) {
26+ if( child[tab_offset+i].error == -1 ) {
27 return (i > 0 ? i-1 : 0);
28 }
29 snd_ctx->out_fds[i] = fds[1];
30@@ -332,7 +332,7 @@ static unsigned int group(childinfo_t *child,
31 snd_ctx->num_fds = num_fds;
32
33 child[tab_offset+num_fds+i] = create_worker(snd_ctx, (void *)(void *)sender);
34- if( child[tab_offset+num_fds+i].error < 0 ) {
35+ if( child[tab_offset+num_fds+i].error == -1 ) {
36 return (num_fds+i)-1;
37 }
38 }
39--
401.7.9.5
41