This is a note to let you know that I've just added the patch titled
MIPS: CM: Fix mips_cm_max_vp_width for UP kernels
to the 4.6-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-cm-fix-mips_cm_max_vp_width-for-up-kernels.patch
and it can be found in the queue-4.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a60ae81e5e5918138703f22427dd8f2445985b55 Mon Sep 17 00:00:00 2001
From: Paul Burton <paul.burton@xxxxxxxxxx>
Date: Wed, 3 Feb 2016 03:15:26 +0000
Subject: MIPS: CM: Fix mips_cm_max_vp_width for UP kernels
From: Paul Burton <paul.burton@xxxxxxxxxx>
commit a60ae81e5e5918138703f22427dd8f2445985b55 upstream.
Fix mips_cm_max_vp_width for UP kernels where it previously referenced
smp_num_siblings, which is not declared for UP kernels. This led to
build errors such as the following:
drivers/built-in.o: In function `$L446':
irq-mips-gic.c:(.text+0x1994): undefined reference to `smp_num_siblings'
drivers/built-in.o:irq-mips-gic.c:(.text+0x199c): more undefined references to `smp_num_siblings' follow
On UP kernels simply return 1, leaving the reference to smp_num_siblings
in place only for SMP kernels.
Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx>
Cc: Matt Redfearn <matt.redfearn@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Patchwork: https://patchwork.linux-mips.org/patch/12332/
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/include/asm/mips-cm.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -461,7 +461,10 @@ static inline unsigned int mips_cm_max_v
if (mips_cm_revision() >= CM_REV_CM3)
return read_gcr_sys_config2() & CM_GCR_SYS_CONFIG2_MAXVPW_MSK;
- return smp_num_siblings;
+ if (config_enabled(CONFIG_SMP))
+ return smp_num_siblings;
+
+ return 1;
}
/**
Patches currently in stable-queue which might be from paul.burton@xxxxxxxxxx are
queue-4.6/mips-cm-fix-mips_cm_max_vp_width-for-up-kernels.patch
queue-4.6/irqchip-mips-gic-match-ipi-irq-domain-by-bus-token-only.patch
queue-4.6/irqchip-mips-gic-map-to-vps-using-hw-vpnum.patch
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