The patch titled
Remove hardcoding of hard_smp_processor_id on UP systems
has been added to the -mm tree. Its filename is
remove-hardcoding-of-hard_smp_processor_id-on-up.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Remove hardcoding of hard_smp_processor_id on UP systems
From: Fernando Luis Vazquez Cao <fernando@xxxxxxxxxxxxx>
With the advent of kdump, the assumption that the boot CPU when booting an UP
kernel is always the CPU with a hardware ID of 0 (usually referred to as BSP
on some architectures) is not valid anymore.
Signed-off-by: Fernando Luis Vazquez Cao <fernando@xxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: Richard Henderson <rth@xxxxxxxxxxx>
Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Hirokazu Takata <takata@xxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/smp.h | 1 -
1 files changed, 1 deletion(-)
diff -puN include/linux/smp.h~remove-hardcoding-of-hard_smp_processor_id-on-up include/linux/smp.h
--- a/include/linux/smp.h~remove-hardcoding-of-hard_smp_processor_id-on-up
+++ a/include/linux/smp.h
@@ -83,7 +83,6 @@ void smp_prepare_boot_cpu(void);
* These macros fold the SMP functionality into a single CPU system
*/
#define raw_smp_processor_id() 0
-#define hard_smp_processor_id() 0
static inline int up_smp_call_function(void)
{
return 0;
_
Patches currently in -mm which might be from fernando@xxxxxxxxxxxxx are
remove-hardcoding-of-hard_smp_processor_id-on-up.patch
remove-hardcoding-of-hard_smp_processor_id-on-up-move-definition-of-hard_smp_processor_id-to-asm-smph.patch
use-the-apic-to-determine-the-hardware-processor-id-i386.patch
use-the-apic-to-determine-the-hardware-processor-id-x86_64.patch
always-ask-the-hardware-to-obtain-hardware-processor.patch
-
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