From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: [PATCH 1/4] m68k/mm: motorola - Add missing initialization of max_pfn Date: Sun, 15 Nov 2015 12:04:12 +0100 Message-ID: <1447585455-19671-2-git-send-email-geert@linux-m68k.org> References: <1447585455-19671-1-git-send-email-geert@linux-m68k.org> Return-path: Received: from albert.telenet-ops.be ([195.130.137.90]:60367 "EHLO albert.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751566AbbKOLnN (ORCPT ); Sun, 15 Nov 2015 06:43:13 -0500 In-Reply-To: <1447585455-19671-1-git-send-email-geert@linux-m68k.org> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Greg Ungerer , Sam Creasey , linux-m68k@lists.linux-m68k.org Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven If max_pfn is not initialized, the various /proc/kpage* files are empty, and selftests/vm/mlock2-tests will fail. max_pfn is also used by the block layer to calculate DMA masks. Signed-off-by: Geert Uytterhoeven --- arch/m68k/mm/motorola.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index b958916e5eac96b2..8f37fdd80be9e9cc 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -250,7 +250,7 @@ void __init paging_init(void) high_memory = phys_to_virt(max_addr); min_low_pfn = availmem >> PAGE_SHIFT; - max_low_pfn = max_addr >> PAGE_SHIFT; + max_pfn = max_low_pfn = max_addr >> PAGE_SHIFT; for (i = 0; i < m68k_num_memory; i++) { addr = m68k_memory[i].addr; -- 1.9.1