linux-kernel - [PATCH v2 4/7] x86/boot: Allow longer parameter list for earlyprintk

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Message-Id: <20190319184325.72807-5-andriy.shevchenko@linux.intel.com>
Date:   Tue, 19 Mar 2019 21:43:22 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v2 4/7] x86/boot: Allow longer parameter list for earlyprintk

Allow longer parameter list, up to 64 characters, for earlyprintk
to support new coming parameters.

If the parsed string is longer than this buffer it will be cut up by
the buffer size.

No functional change intended.

Note, that 'console' case is already covered.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 arch/x86/boot/early_serial_console.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/boot/early_serial_console.c b/arch/x86/boot/early_serial_console.c
index 85a227a21f95..98aee6c6e374 100644
--- a/arch/x86/boot/early_serial_console.c
+++ b/arch/x86/boot/early_serial_console.c
@@ -83,7 +83,7 @@ static unsigned long parse_serial_port(const char *arg, int off, int *pos)
 static void parse_earlyprintk(void)
 {
 	int baud = DEFAULT_BAUD;
-	char arg[32];
+	char arg[64];
 	int pos = 0;
 	unsigned long port = 0;
 
-- 
2.20.1