linux-kernel - [PATCH] SH: use PFN

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 10 Aug 2015 00:28:11 +0600
From:	Alexander Kuleshov <kuleshovmail@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Geert Uytterhoeven <geert+renesas@...der.be>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org,
	Alexander Kuleshov <kuleshovmail@...il.com>
Subject: [PATCH] SH: use PFN_DOWN macro

Replace ((x) >> PAGE_SHIFT) with the predefined PFN_DOWN macro.

Signed-off-by: Alexander Kuleshov <kuleshovmail@...il.com>
---
 arch/sh/mm/init.c | 4 ++--
 arch/sh/mm/numa.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 2790b6a..17f4862 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -488,6 +488,6 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 int arch_add_memory(int nid, u64 start, u64 size)
 {
 	pg_data_t *pgdat;
-	unsigned long start_pfn = start >> PAGE_SHIFT;
+	unsigned long start_pfn = PFN_DOWN(start);
 	unsigned long nr_pages = size >> PAGE_SHIFT;
 	int ret;

@@ -517,7 +517,7 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 #ifdef CONFIG_MEMORY_HOTREMOVE
 int arch_remove_memory(u64 start, u64 size)
 {
-	unsigned long start_pfn = start >> PAGE_SHIFT;
+	unsigned long start_pfn = PFN_DOWN(start);
 	unsigned long nr_pages = size >> PAGE_SHIFT;
 	struct zone *zone;
 	int ret;
diff --git a/arch/sh/mm/numa.c b/arch/sh/mm/numa.c
index bce52ba..05713d1 100644
--- a/arch/sh/mm/numa.c
+++ b/arch/sh/mm/numa.c
@@ -33,2 +33,2 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
 	/* Don't allow bogus node assignment */
 	BUG_ON(nid >= MAX_NUMNODES || nid <= 0);

-	start_pfn = start >> PAGE_SHIFT;
-	end_pfn = end >> PAGE_SHIFT;
+	start_pfn = PFN_DOWN(start);
+	end_pfn = PFN_DOWN(end);

 	pmb_bolt_mapping((unsigned long)__va(start), start, end - start,
 			 PAGE_KERNEL);
--
2.5.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/