From: Dave Hansen <dave@sr71.net>
To: linux-kernel@vger.kernel.org
Cc: Dave Hansen <dave@sr71.net>,
dave.hansen@linux.intel.com, bp@suse.de, hpa@zytor.com,
fenghua.yu@intel.com, yu-cheng.yu@intel.com
Subject: [PATCH 1/5] x86: pass in size to early cmdline parsing
Date: Thu, 17 Dec 2015 14:00:51 -0800 [thread overview]
Message-ID: <20151217220051.E8C7A8C9@viggo.jf.intel.com> (raw)
From: Dave Hansen <dave.hansen@linux.intel.com>
We will use this in a few patches to implement tests for early
parsing.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: linux-kernel@vger.kernel.org
Cc: fenghua.yu@intel.com
Cc: yu-cheng.yu@intel.com
---
b/arch/x86/lib/cmdline.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff -puN arch/x86/lib/cmdline.c~pass-in-cmdline-size arch/x86/lib/cmdline.c
--- a/arch/x86/lib/cmdline.c~pass-in-cmdline-size 2015-12-17 13:54:52.534928192 -0800
+++ b/arch/x86/lib/cmdline.c 2015-12-17 13:54:52.537928328 -0800
@@ -23,7 +23,8 @@ static inline int myisspace(u8 c)
* Returns the position of that @option (starts counting with 1)
* or 0 on not found.
*/
-int cmdline_find_option_bool(const char *cmdline, const char *option)
+static int __cmdline_find_option_bool(const char *cmdline,
+ int max_cmdline_size, const char *option)
{
char c;
int len, pos = 0, wstart = 0;
@@ -37,7 +38,7 @@ int cmdline_find_option_bool(const char
if (!cmdline)
return -1; /* No command line */
- len = min_t(int, strlen(cmdline), COMMAND_LINE_SIZE);
+ len = min_t(int, strlen(cmdline), max_cmdline_size);
if (!len)
return 0;
@@ -82,3 +83,9 @@ int cmdline_find_option_bool(const char
return 0; /* Buffer overrun */
}
+
+int cmdline_find_option_bool(const char *cmdline, const char *option)
+{
+ return __cmdline_find_option_bool(cmdline, COMMAND_LINE_SIZE,
+ option);
+}
_
next reply other threads:[~2015-12-17 22:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-17 22:00 Dave Hansen [this message]
2015-12-17 22:00 ` [PATCH 2/5] x86: test early command-line code Dave Hansen
2015-12-17 22:44 ` kbuild test robot
2015-12-18 2:03 ` kbuild test robot
2015-12-17 22:00 ` [PATCH 3/5] x86: fix early command-line parsing when matching at end Dave Hansen
2015-12-17 22:00 ` [PATCH 4/5] x86: fix early command-line parsing, when partial word match Dave Hansen
2015-12-17 22:01 ` [PATCH 5/5] x86: simplify early command line parsing Dave Hansen
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