linux-kernel - [PATCH v3 02/21] vmcore: clean up by removing unnecessary variable

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Date:	Sat, 16 Mar 2013 13:00:58 +0900
From:	HATAYAMA Daisuke <d.hatayama@...fujitsu.com>
To:	vgoyal@...hat.com, ebiederm@...ssion.com, cpw@....com,
	kumagai-atsushi@....nes.nec.co.jp, lisa.mitchell@...com,
	heiko.carstens@...ibm.com, akpm@...ux-foundation.org
Cc:	kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
	zhangyanfei@...fujitsu.com
Subject: [PATCH v3 02/21] vmcore: clean up by removing unnecessary variable

The variable j has int type but it's compared with u64 type.

Also, the purpose of the variable j is exactly what the variable
real_sz is used for now. Replace the variable j by the variable
real_sz and remove the variable j.

Signed-off-by: HATAYAMA Daisuke <d.hatayama@...fujitsu.com>
---

 fs/proc/vmcore.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 163281e..94743d2 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -261,7 +261,6 @@ static int __init merge_note_headers_elf64(char *elfptr, size_t *elfsz,
 	ehdr_ptr = (Elf64_Ehdr *)elfptr;
 	phdr_ptr = (Elf64_Phdr*)(elfptr + ehdr_ptr->e_phoff);
 	for (i = 0; i < ehdr_ptr->e_phnum; i++, phdr_ptr++) {
-		int j;
 		void *notes_section;
 		struct vmcore *new;
 		u64 offset, max_sz, sz, real_sz = 0;
@@ -279,7 +278,7 @@ static int __init merge_note_headers_elf64(char *elfptr, size_t *elfsz,
 			return rc;
 		}
 		nhdr_ptr = notes_section;
-		for (j = 0; j < max_sz; j += sz) {
+		while (real_sz < max_sz) {
 			if (nhdr_ptr->n_namesz == 0)
 				break;
 			sz = sizeof(Elf64_Nhdr) +
@@ -342,7 +341,6 @@ static int __init merge_note_headers_elf32(char *elfptr, size_t *elfsz,
 	ehdr_ptr = (Elf32_Ehdr *)elfptr;
 	phdr_ptr = (Elf32_Phdr*)(elfptr + ehdr_ptr->e_phoff);
 	for (i = 0; i < ehdr_ptr->e_phnum; i++, phdr_ptr++) {
-		int j;
 		void *notes_section;
 		struct vmcore *new;
 		u64 offset, max_sz, sz, real_sz = 0;
@@ -360,7 +358,7 @@ static int __init merge_note_headers_elf32(char *elfptr, size_t *elfsz,
 			return rc;
 		}
 		nhdr_ptr = notes_section;
-		for (j = 0; j < max_sz; j += sz) {
+		while (real_sz < max_sz) {
 			if (nhdr_ptr->n_namesz == 0)
 				break;
 			sz = sizeof(Elf32_Nhdr) +

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