[LTP] [PATCH] fanotify: fix missing fallback for FAN_RESPONSE_ERRNO

[Andrea Cervesato]

From: Andrea Cervesato <andrea.cervesato@suse.com>

Fix the following build error on i586:

fanotify24.c: In function ‘expected_errno’:
..
  173 |                 return FAN_RESPONSE_ERRNO(response);
      |                        ^~~~~~~~~~~~~~~~~~
      |                        FAN_DENY_ERRNO
make[4]: *** [../../../../include/mk/rules.mk:48: fanotify24] Error 1

Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
The reason of the fail is related to the FAN_RESPONSE_ERRNO
definition, which is skipped in the fallback header file.

https://openqa.opensuse.org/tests/4961163#step/install_ltp/82
---
 include/lapi/fanotify.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/lapi/fanotify.h b/include/lapi/fanotify.h
index 76907ea5f21989c5185478d3d4f5577d9403e519..8d04c8f28969d0b3d5fec71824d569b01c9ec054 100644
--- a/include/lapi/fanotify.h
+++ b/include/lapi/fanotify.h
@@ -128,6 +128,9 @@
 #ifndef FAN_DENY_ERRNO
 #define FAN_ERRNO(err) (((((__u32)(err)) & 0xff) << 24))
 #define FAN_DENY_ERRNO(err) (FAN_DENY | FAN_ERRNO(err))
+#endif
+
+#ifndef FAN_RESPONSE_ERRNO
 #define FAN_RESPONSE_ERRNO(res) ((int)((res) >> 24))
 #endif
 

---
base-commit: 1aca297938c85b41e41c913d4ffc0ecc345d02d4
change-id: 20250331-fix_fanotify_i586-e96ee3d06275

Best regards,
-- 
Andrea Cervesato <andrea.cervesato@suse.com>