From 069f11f9d66bc582fb40a37a7b92363f5d321969 Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Thu, 10 May 2007 22:22:15 -0700 Subject: x86_64: display more intuitive error message if kernel is not 2MB aligned o x86_64 kernel needs to be compiled for 2MB aligned addresses. Currently we are using BUILD_BUG_ON() to warn the user if he has not done so. But looks like folks are not finding message very intutive and don't open the respective c file to find problem source. (Bug 8439) arch/x86_64/kernel/head64.c: In function 'x86_64_start_kernel': arch/x86_64/kernel/head64.c:70: error: size of array 'type name' is negative o Using preprocessor directive #error to print a better message if CONFIG_PHYSICAL_START is not aligned to 2MB boundary. Signed-off-by: Vivek Goyal Cc: Andi Kleen Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/head64.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'arch') diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c index 213d90e0475..6c34bdd22e2 100644 --- a/arch/x86_64/kernel/head64.c +++ b/arch/x86_64/kernel/head64.c @@ -62,13 +62,6 @@ void __init x86_64_start_kernel(char * real_mode_data) { int i; - /* - * Make sure kernel is aligned to 2MB address. Catching it at compile - * time is better. Change your config file and compile the kernel - * for a 2MB aligned address (CONFIG_PHYSICAL_START) - */ - BUILD_BUG_ON(CONFIG_PHYSICAL_START & (__KERNEL_ALIGN - 1)); - /* clear bss before set_intr_gate with early_idt_handler */ clear_bss(); -- cgit v1.2.3