blob: 3227a1dedc1d2dd9b18ad287cb37d1942805658d [file] [log] [blame]
From 1d1a3739a2ad19b6678aed04e6588af203638133 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <>
Date: Mon, 23 Dec 2019 14:31:47 +0100
Subject: [PATCH] powerpc/spinlocks: Include correct header for static key
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commit 6da3eced8c5f3b03340b0c395bacd552c4d52411 upstream.
Recently, the spinlock implementation grew a static key optimization,
but the jump_label.h header include was left out, leading to build
linux/arch/powerpc/include/asm/spinlock.h:44:7: error: implicit declaration of function static_branch_unlikely
44 | if (!static_branch_unlikely(&shared_processor))
This commit adds the missing header.
mpe: The build break is only seen with CONFIG_JUMP_LABEL=n.
Fixes: 656c21d6af5d ("powerpc/shared: Use static key to detect shared processor")
Signed-off-by: Jason A. Donenfeld <>
Reviewed-by: Srikar Dronamraju <>
Signed-off-by: Michael Ellerman <>
Signed-off-by: Paul Gortmaker <>
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index 897f26f45b4f..ff0dffb19aea 100644
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -15,6 +15,7 @@
* (the type definitions are in asm/spinlock_types.h)
+#include <linux/jump_label.h>
#include <linux/irqflags.h>
#ifdef CONFIG_PPC64
#include <asm/paca.h>