File 0040-LU-14073-build-fix-autoconf-test-for-clean_bdev_alia.patch of Package lustre_2_12
From cdaa22f64348b19bc9e2aaf145b58e508ea337db Mon Sep 17 00:00:00 2001 From: Mr NeilBrown <neilb@suse.de> Date: Mon, 26 Oct 2020 13:38:21 +1100 Subject: [PATCH] LU-14073 build: fix autoconf test for clean_bdev_aliases() From 5.9, buffer_head.h no longer provides a declaration for 'struct block_device' so the code fragment fails because the compiler doesn't know the size of that structure. Instead, simple pass NULL rather than the address of a real structure. Test-Parameters: trivial Signed-off-by: Mr NeilBrown <neilb@suse.de> Change-Id: I1775572fbd56d22822b6e440fe95bd105042e7b8 Reviewed-on: https://review.whamcloud.com/40395 Reviewed-by: Andreas Dilger <adilger@whamcloud.com> Reviewed-by: Aurelien Degremont <degremoa@amazon.com> Tested-by: jenkins <devops@whamcloud.com> Tested-by: Maloo <maloo@whamcloud.com> --- lustre/autoconf/lustre-core.m4 | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/lustre/autoconf/lustre-core.m4 +++ b/lustre/autoconf/lustre-core.m4 @@ -1869,8 +1869,7 @@ LB_CHECK_COMPILE([if kernel has clean_bd have_clean_bdev_aliases, [ #include <linux/buffer_head.h> ],[ - struct block_device bdev; - clean_bdev_aliases(&bdev,1,1); + clean_bdev_aliases(NULL,1,1); ], [ AC_DEFINE(HAVE_CLEAN_BDEV_ALIASES, 1, [kernel has clean_bdev_aliases])
