From a5e4cd6cb1956d288b5a001f60699dc8b5528963 Mon Sep 17 00:00:00 2001 From: Syed Salman Mansoor Date: Tue, 7 May 2013 12:49:24 +0500 Subject: [PATCH] Enable A20 gate This is a patch to the a20.c file that fixes following warnings/errors found by the checkpatch.pl tool i) WARNING: please, no spaces at the start of a line ii) WARNING: suspect code indent for conditional statements iii) ERROR: trailing whitespace Signed-off-by: Syed Salman Mansoor --- arch/x86/boot/a20.c | 46 +++++++++++++++++++++++----------------------- 1 files changed, 23 insertions(+), 23 deletions(-) diff --git a/arch/x86/boot/a20.c b/arch/x86/boot/a20.c index 64a31a6..911d729 100644 --- a/arch/x86/boot/a20.c +++ b/arch/x86/boot/a20.c @@ -129,37 +129,37 @@ static void enable_a20_fast(void) int enable_a20(void) { - int loops = A20_ENABLE_LOOPS; - int kbc_err; + int loops = A20_ENABLE_LOOPS; + int kbc_err; - while (loops--) { - /* First, check to see if A20 is already enabled + while (loops--) { + /* First, check to see if A20 is already enabled (legacy free, etc.) */ - if (a20_test_short()) - return 0; - + if (a20_test_short()) + return 0; + /* Next, try the BIOS (INT 0x15, AX=0x2401) */ enable_a20_bios(); - if (a20_test_short()) - return 0; - + if (a20_test_short()) + return 0; + /* Try enabling A20 through the keyboard controller */ kbc_err = empty_8042(); - if (a20_test_short()) - return 0; /* BIOS worked, but with delayed reaction */ - - if (!kbc_err) { - enable_a20_kbc(); - if (a20_test_long()) - return 0; + if (a20_test_short()) + return 0; /* BIOS worked, but with delayed reaction */ + + if (!kbc_err) { + enable_a20_kbc(); + if (a20_test_long()) + return 0; } - + /* Finally, try enabling the "fast A20 gate" */ enable_a20_fast(); - if (a20_test_long()) - return 0; - } - - return -1; + if (a20_test_long()) + return 0; + } + + return -1; } -- 1.7.2.5