linux-kernel - [PATCH] percpu: fix compile warnings

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Message-ID: <4AC7EE39.6010605@kernel.org>
Date:	Sun, 04 Oct 2009 09:37:13 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Randy Dunlap <randy.dunlap@...cle.com>
CC:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] percpu: fix compile warnings

Fix the following two compile warnings which show up on i386.

mm/percpu.c:1873: warning: comparison of distinct pointer types lacks a cast
mm/percpu.c:1879: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'size_t'

Signed-off-by: Tejun Heo <tj@...nel.org>
Reported-by: Randy Dunlap <randy.dunlap@...cle.com>
---
This patch has been committed to percpu#for-next.  Thanks.

 mm/percpu.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/mm/percpu.c b/mm/percpu.c
index e4e08b8..ec158bb 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1868,13 +1868,14 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, ssize_t dyn_size,
 	max_distance = 0;
 	for (group = 0; group < ai->nr_groups; group++) {
 		ai->groups[group].base_offset = areas[group] - base;
-		max_distance = max(max_distance, ai->groups[group].base_offset);
+		max_distance = max_t(size_t, max_distance,
+				     ai->groups[group].base_offset);
 	}
 	max_distance += ai->unit_size;
 
 	/* warn if maximum distance is further than 75% of vmalloc space */
 	if (max_distance > (VMALLOC_END - VMALLOC_START) * 3 / 4) {
-		pr_warning("PERCPU: max_distance=0x%lx too large for vmalloc "
+		pr_warning("PERCPU: max_distance=0x%zx too large for vmalloc "
 			   "space 0x%lx\n",
 			   max_distance, VMALLOC_END - VMALLOC_START);
 #ifdef CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK
-- 
1.6.4.2

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