buildroot/package/ltp-testsuite/0001-configure-Fix-build-on-kernel-6.14-headers.patch

From 3ef4bac1dd253628dfdb8a823b51ae0d24fa0616 Mon Sep 17 00:00:00 2001
From: Petr Vorel <pvorel@suse.cz>
Date: Mon, 2 Jun 2025 19:08:30 +0200
Subject: [PATCH] configure: Fix build on kernel 6.14 headers

We decided in a2300dc0f5 to remove <linux/mount.h> in lapi/mount.h and
use only <sys/mount.h>. But later in 5c5411ea8e we add autotools checks
in configure.ac which use <linux/mount.h> for detection, but kept using
lapi/mount.h. This worked until now, because no toolchain used new
header enough. Recent Alpine update broke that.

This fixes CI build on Alpine v3.22 (the default Alpine version in
GitHub action), which uses 6.14.2 kernel headers, which already define
struct mnt_id_req (configure.ac detect it but lapi/mount.h was not using
a correct header):

    listmount.h: In function 'listmount':
    listmount.h:18:16: error: variable 'req' has initializer but incomplete type
       18 |         struct mnt_id_req req = {
	  |                ^~~~~~~~~~

Link: https://lore.kernel.org/ltp/20250602170831.404641-1-pvorel@suse.cz/
Fixes: 5c5411ea8e ("Add listmount/statmount fallback declarations")
Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
Acked-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Upstream: https://github.com/linux-test-project/ltp/commit/3ef4bac1dd253628dfdb8a823b51ae0d24fa0616
---
 configure.ac | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 9ff098b273..69c5be7362 100644
--- a/configure.ac
+++ b/configure.ac
@@ -254,8 +254,10 @@ AC_CHECK_TYPES([struct mount_attr],,,[
 
 AC_CHECK_TYPES([struct cachestat_range],,,[#include <sys/mman.h>])
 AC_CHECK_TYPES([struct cachestat],,,[#include <sys/mman.h>])
-AC_CHECK_TYPES([struct mnt_id_req],,,[#include <linux/mount.h>])
-AC_CHECK_TYPES([struct statmount],,,[#include <linux/mount.h>])
+
+# Defined in <linux/mount.h>, but include/lapi/mount.h includes <sys/mount.h> */
+AC_CHECK_TYPES([struct mnt_id_req],,,[#include <sys/mount.h>])
+AC_CHECK_TYPES([struct statmount],,,[#include <sys/mount.h>])
 
 # Tools knobs
 
-- 
2.50.0