linux-kernel - [PATCH 4/7] x86/boot: Switch output functions from command-line flags to conditional compilation

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:	Thu, 19 Jul 2012 18:04:39 -0700
From:	Joe Millenbach <jmillenbach@...il.com>
To:	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	Gokul Caushik <caushik1@...il.com>,
	Josh Triplett <josh@...htriplett.org>,
	Joe Millenbach <jmillenbach@...il.com>,
	Jesper Juhl <jj@...osbits.net>, linux-kernel@...r.kernel.org
Cc:	team-fjord@...glegroups.com
Subject: [PATCH 4/7] x86/boot: Switch output functions from command-line flags to conditional compilation

Changed putstr flagging from parameter to conditional compilation for puts,
debug_putstr, and error_putstr. This allows for space savings since most
configurations won't use this feature.

Signed-off-by: Joe Millenbach <jmillenbach@...il.com>
Signed-off-by: Gokul Caushik <caushik1@...il.com>
Reviewed-by: Josh Triplett <josh@...htriplett.org>
---
 arch/x86/boot/compressed/misc.c |   12 +-----------
 arch/x86/boot/compressed/misc.h |   17 +++++++++++++----
 2 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index de1d54d..8c29f82 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -169,15 +169,11 @@ static void serial_putchar(int ch)
 	outb(ch, early_serial_base + TXR);
 }
 
-void __putstr(int error, const char *s)
+void __putstr(const char *s)
 {
 	int x, y, pos;
 	char c;
 
-#ifndef CONFIG_X86_VERBOSE_BOOTUP
-	if (!error)
-		return;
-#endif
 	if (early_serial_base) {
 		const char *str = s;
 		while (*str) {
@@ -223,12 +219,6 @@ void __putstr(int error, const char *s)
 	outb(0xff & (pos >> 1), vidport+1);
 }
 
-static void debug_putstr(const char *s)
-{
-	if (debug)
-		putstr(s);
-}
-
 void *memset(void *s, int c, size_t n)
 {
 	int i;
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index 4c1bfb6..618e5c8 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -24,10 +24,19 @@
 
 /* misc.c */
 extern struct boot_params *real_mode;		/* Pointer to real-mode data */
-void __putstr(int error, const char *s);
-#define putstr(__x)  __putstr(0, __x)
-#define error_putstr(__x)  __putstr(1, __x)
-#define puts(__x)  __putstr(0, __x)
+void __putstr(const char *s);
+#define error_putstr(__x)  __putstr(__x)
+
+#ifdef CONFIG_X86_VERBOSE_BOOTUP
+
+#define debug_putstr(__x)  __putstr(__x)
+
+#else
+
+static inline void debug_putstr(const char *s)
+{ }
+
+#endif
 
 /* cmdline.c */
 int cmdline_find_option(const char *option, char *buffer, int bufsize);
-- 
1.7.9.5

--
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/