This is a note to let you know that I've just added the patch titled
MIPS: paravirt: Fix undefined reference to smp_bootstrap
to the 4.7-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:
mips-paravirt-fix-undefined-reference-to-smp_bootstrap.patch
and it can be found in the queue-4.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 951c39cd3bc0aedf67fbd8fb4b9380287e6205d1 Mon Sep 17 00:00:00 2001
From: Matt Redfearn <matt.redfearn@xxxxxxxxxx>
Date: Mon, 5 Sep 2016 15:43:40 +0100
Subject: MIPS: paravirt: Fix undefined reference to smp_bootstrap
From: Matt Redfearn <matt.redfearn@xxxxxxxxxx>
commit 951c39cd3bc0aedf67fbd8fb4b9380287e6205d1 upstream.
If the paravirt machine is compiles without CONFIG_SMP, the following
linker error occurs
arch/mips/kernel/head.o: In function `kernel_entry':
(.ref.text+0x10): undefined reference to `smp_bootstrap'
due to the kernel entry macro always including SMP startup code.
Wrap this code in CONFIG_SMP to fix the error.
Signed-off-by: Matt Redfearn <matt.redfearn@xxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Patchwork: https://patchwork.linux-mips.org/patch/14212/
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/include/asm/mach-paravirt/kernel-entry-init.h | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h
+++ b/arch/mips/include/asm/mach-paravirt/kernel-entry-init.h
@@ -11,11 +11,13 @@
#define CP0_EBASE $15, 1
.macro kernel_entry_setup
+#ifdef CONFIG_SMP
mfc0 t0, CP0_EBASE
andi t0, t0, 0x3ff # CPUNum
beqz t0, 1f
# CPUs other than zero goto smp_bootstrap
j smp_bootstrap
+#endif /* CONFIG_SMP */
1:
.endm
Patches currently in stable-queue which might be from matt.redfearn@xxxxxxxxxx are
queue-4.7/mips-smp-fix-possibility-of-deadlock-when-bringing-cpus-online.patch
queue-4.7/mips-paravirt-fix-undefined-reference-to-smp_bootstrap.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html