This is a note to let you know that I've just added the patch titled
Revert "loongarch/cpu: Switch to arch_cpu_finalize_init()"
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
revert-loongarch-cpu-switch-to-arch_cpu_finalize_init.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5744384a5ce9cd5cdc62db7427c1d26ba8543da1 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Fri, 11 Aug 2023 16:26:20 +0200
Subject: Revert "loongarch/cpu: Switch to arch_cpu_finalize_init()"
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
This reverts commit 08e86d42e2c916e362d124e3bc6c824eb1862498 which is
commit 9841c423164787feb8f1442f922b7d80a70c82f1 upstream.
As Gunter reports:
Building loongarch:defconfig ... failed
--------------
Error log:
<stdin>:569:2: warning: #warning syscall fstat not implemented [-Wcpp]
arch/loongarch/kernel/setup.c: In function 'arch_cpu_finalize_init':
arch/loongarch/kernel/setup.c:86:9: error: implicit declaration of function 'alternative_instructions'
Actually introduced in v6.1.44 with commit 08e86d42e2c9 ("loongarch/cpu:
Switch to arch_cpu_finalize_init()"). Alternative instruction support
was only introduced for loongarch in v6.2 with commit 19e5eb15b00c
("LoongArch: Add alternative runtime patching mechanism").
So revert it from 6.1.y.
Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/fcd7b764-9047-22ba-a040-41b6ff99959c@xxxxxxxxxxxx
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Daniel Sneddon <daniel.sneddon@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/loongarch/Kconfig | 1 -
arch/loongarch/kernel/setup.c | 6 ------
2 files changed, 7 deletions(-)
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -10,7 +10,6 @@ config LOONGARCH
select ARCH_ENABLE_MEMORY_HOTPLUG
select ARCH_ENABLE_MEMORY_HOTREMOVE
select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
- select ARCH_HAS_CPU_FINALIZE_INIT
select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
--- a/arch/loongarch/kernel/setup.c
+++ b/arch/loongarch/kernel/setup.c
@@ -12,7 +12,6 @@
*/
#include <linux/init.h>
#include <linux/acpi.h>
-#include <linux/cpu.h>
#include <linux/dmi.h>
#include <linux/efi.h>
#include <linux/export.h>
@@ -81,11 +80,6 @@ const char *get_system_type(void)
return "generic-loongson-machine";
}
-void __init arch_cpu_finalize_init(void)
-{
- alternative_instructions();
-}
-
static const char *dmi_string_parse(const struct dmi_header *dm, u8 s)
{
const u8 *bp = ((u8 *) dm) + dm->length;
Patches currently in stable-queue which might be from gregkh@xxxxxxxxxxxxxxxxxxx are
queue-6.1/gcc-plugins-reorganize-gimple-includes-for-gcc-13.patch
queue-6.1/revert-loongarch-cpu-switch-to-arch_cpu_finalize_init.patch
