Revert "x86/kexec: add a sanity check on previous kernel's ima kexec buffer"

This reverts commit c5489d04337b47e93c0623e8145fcba3f5739efd.

The commit introduces a call to ima_validate_range() in
arch/x86/kernel/setup.c, but the function declaration is not available
in the 6.12 stable tree, resulting in build failures due to implicit
function declaration errors across multiple stable branches.

Signed-off-by: Sasha Levin <sashal@kernel.org>

1 files changed, 0 insertions, 6 deletions

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index df74f865c9f1..eb129277dcdd 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -372,15 +372,9 @@ int __init ima_free_kexec_buffer(void)
 
 int __init ima_get_kexec_buffer(void **addr, size_t *size)
 {
-	int ret;
-
 	if (!ima_kexec_buffer_size)
 		return -ENOENT;
 
-	ret = ima_validate_range(ima_kexec_buffer_phys, ima_kexec_buffer_size);
-	if (ret)
-		return ret;
-
 	*addr = __va(ima_kexec_buffer_phys);
 	*size = ima_kexec_buffer_size;