5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Andrew Donnellan <ajd@xxxxxxxxxxxxx> commit efb78fa86e95832b78ca0ba60f3706788a818938 upstream. test_pages() tests the page allocator by calling alloc_pages() with different orders up to order 10. However, different architectures and platforms support different maximum contiguous allocation sizes. The default maximum allocation order (MAX_ORDER) is 10, but architectures can use CONFIG_ARCH_FORCE_MAX_ORDER to override this. On platforms where this is less than 10, test_meminit() will blow up with a WARN(). This is expected, so let's not do that. Replace the hardcoded "10" with the MAX_ORDER macro so that we test allocations up to the expected platform limit. Link: https://lkml.kernel.org/r/20230714015238.47931-1-ajd@xxxxxxxxxxxxx Fixes: 5015a300a522 ("lib: introduce test_meminit module") Signed-off-by: Andrew Donnellan <ajd@xxxxxxxxxxxxx> Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx> Cc: Xiaoke Wang <xkernel.wang@xxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- lib/test_meminit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/lib/test_meminit.c +++ b/lib/test_meminit.c @@ -86,7 +86,7 @@ static int __init test_pages(int *total_ int failures = 0, num_tests = 0; int i; - for (i = 0; i < 10; i++) + for (i = 0; i <= MAX_ORDER; i++) num_tests += do_alloc_pages_order(i, &failures); REPORT_FAILURES_IN_FN();
