Messages in this thread Patch in this message | | | Subject | [PATCH] x86: boot: Remove ancient dead code | From | Paul Bolle <> | Date | Thu, 21 Jun 2012 00:16:29 +0200 |
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Release v1.3.82 wrapped a few lines of code in an "#ifdef SAFE_RESET_DISK_CONTROLLER" and "#endif" pair. Since SAFE_RESET_DISK_CONTROLLER was never defined anywhere that was basically a verbose "#ifdef 0" and "#endif" pair. These dead lines have been in the tree for sixteen years but now the time has come to remove them.
I guess the main lesson here is that if you want your dead code in the tree for a very long time you'd better be creative. A plain old "#ifdef 0" and "#endif" pair just doesn't cut it!
Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Link: https://lkml.org/lkml/1996/3/30/38 Cc: Jeff Epler <jepler@inetnebr.com> --- arch/x86/boot/header.S | 7 ------- 1 files changed, 0 insertions(+), 7 deletions(-)
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S index efe5acf..9b9c647 100644 --- a/arch/x86/boot/header.S +++ b/arch/x86/boot/header.S @@ -406,13 +406,6 @@ init_size: .long INIT_SIZE # kernel initialization size .section ".entrytext", "ax" start_of_setup: -#ifdef SAFE_RESET_DISK_CONTROLLER -# Reset the disk controller. - movw $0x0000, %ax # Reset disk controller - movb $0x80, %dl # All disks - int $0x13 -#endif - # Force %es = %ds movw %ds, %ax movw %ax, %es -- 1.7.7.6
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