[PATCH 5.2 120/413] tools build: Fix the zstd test in the test-all.c common case feature test

[Greg Kroah-Hartman]

[ Upstream commit 3469fa84c1631face938efc42b3f488a2c2504e0 ]

We were renanimg 'main' to 'main_zstd' but then using 'main_libzstd();'
in the main() for test-all.c, causing this:

  $ cat /tmp/build/perf/feature/test-all.make.output
  test-all.c: In function âmainâ:
  test-all.c:236:2: error: implicit declaration of function âmain_test_libzstdâ; did you mean âmain_test_zstdâ? [-Werror=implicit-function-declaration]
    main_test_libzstd();
    ^~~~~~~~~~~~~~~~~
    main_test_zstd
  cc1: all warnings being treated as errors
  $

I.e. what was supposed to be the fast path feature test was _always_
failing, duh, fix it.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Alexey Budankov <alexey.budankov@xxxxxxxxxxxxxxx>
Fixes: 3b1c5d965971 ("tools build: Implement libzstd feature check, LIBZSTD_DIR and NO_LIBZSTD defines")
Link: https://lkml.kernel.org/n/tip-ma4abk0utroiw4mwpmvnjlru@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 tools/build/feature/test-all.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index a59c53705093..939ac2fcc783 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -182,7 +182,7 @@
 # include "test-disassembler-four-args.c"
 #undef main
 
-#define main main_test_zstd
+#define main main_test_libzstd
 # include "test-libzstd.c"
 #undef main
 
-- 
2.20.1