From: Chao Fan <fanc.fnst@cn.fujitsu.com>
To: <hpa@zytor.com>, <tglx@linutronix.de>, <mingo@redhat.com>,
<x86@kernel.org>, <keescook@chromium.org>,
<gregkh@linuxfoundation.org>, <n-horiguchi@ah.jp.nec.com>,
<linux-kernel@vger.kernel.org>
Cc: Chao Fan <fanc.fnst@cn.fujitsu.com>
Subject: [PATCH] kaslr: clean up a useless variable and some usless space
Date: Thu, 23 Nov 2017 17:08:47 +0800
Message-ID: <20171123090847.15293-1-fanc.fnst@cn.fujitsu.com> (raw)
There are two same variable "rc" in mem_avoid_memmap. One is in the
circulation, the other is out of the circulation. The one out will never
be used, so drop it.
Signed-off-by: Chao Fan <fanc.fnst@cn.fujitsu.com>
---
arch/x86/boot/compressed/kaslr.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index a63fbc25ce84..8199a6187251 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -171,7 +171,6 @@ parse_memmap(char *p, unsigned long long *start, unsigned long long *size)
static void mem_avoid_memmap(char *str)
{
static int i;
- int rc;
if (i >= MAX_MEMMAP_REGIONS)
return;
@@ -219,7 +218,7 @@ static int handle_mem_memmap(void)
return 0;
tmp_cmdline = malloc(len + 1);
- if (!tmp_cmdline )
+ if (!tmp_cmdline)
error("Failed to allocate space for tmp_cmdline");
memcpy(tmp_cmdline, args, len);
@@ -363,7 +362,7 @@ static void mem_avoid_init(unsigned long input, unsigned long input_size,
cmd_line |= boot_params->hdr.cmd_line_ptr;
/* Calculate size of cmd_line. */
ptr = (char *)(unsigned long)cmd_line;
- for (cmd_line_size = 0; ptr[cmd_line_size++]; )
+ for (cmd_line_size = 0; ptr[cmd_line_size++];)
;
mem_avoid[MEM_AVOID_CMDLINE].start = cmd_line;
mem_avoid[MEM_AVOID_CMDLINE].size = cmd_line_size;
--
2.14.3
next reply index
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-23 9:08 Chao Fan [this message]
2017-11-23 16:34 ` Thomas Gleixner
2017-11-23 16:35 ` Thomas Gleixner
2017-11-23 19:24 ` [tip:x86/urgent] x86/boot/KASLR: Remove unused variable tip-bot for Chao Fan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20171123090847.15293-1-fanc.fnst@cn.fujitsu.com \
--to=fanc.fnst@cn.fujitsu.com \
--cc=gregkh@linuxfoundation.org \
--cc=hpa@zytor.com \
--cc=keescook@chromium.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=n-horiguchi@ah.jp.nec.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
LKML Archive on lore.kernel.org
Archives are clonable:
git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git
git clone --mirror https://lore.kernel.org/lkml/9 lkml/git/9.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
linux-kernel@vger.kernel.org
public-inbox-index lkml
Example config snippet for mirrors
Newsgroup available over NNTP:
nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git