[PATCH stable/3.14] ARM: sunxi: fix build for THUMB2_KERNEL
From: khilman@kernel.org (Kevin Hilman)
Date: 2015-08-11 16:16:46
Also in:
stable
Subsystem:
arm port, arm/allwinner sunxi soc support, the rest · Maintainers:
Russell King, Chen-Yu Tsai, Jernej Skrabec, Samuel Holland, Linus Torvalds
From: Arnd Bergmann <arnd@arndb.de> Building an SMP kernel for the sunxi platform with THUMB2 instructions fails with this error at the moment: headsmp.S:7: Error: Thumb encoding does not support an immediate here -- `msr cpsr_fsxc,#0xd3' Since the generic secondary_startup function already does the same thing in a safe way, we can just drop the private sunxi implementation and jump straight to secondary_startup. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Maxime Ripard <redacted> Cc: <redacted> # v3.14 (cherry picked from commit 1146b600044de64af0ef775025731eeef1fa2189) Signed-off-by: Kevin Hilman <redacted> --- arch/arm/include/asm/smp.h | 1 + arch/arm/mach-sunxi/Makefile | 2 +- arch/arm/mach-sunxi/headsmp.S | 9 --------- arch/arm/mach-sunxi/platsmp.c | 2 +- 4 files changed, 3 insertions(+), 11 deletions(-) delete mode 100644 arch/arm/mach-sunxi/headsmp.S
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index 22a3b9b5d4a1..4157aec4e307 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h@@ -74,6 +74,7 @@ struct secondary_data { }; extern struct secondary_data secondary_data; extern volatile int pen_release; +extern void secondary_startup(void); extern int __cpu_disable(void);
diff --git a/arch/arm/mach-sunxi/Makefile b/arch/arm/mach-sunxi/Makefile
index d9397202d6ec..27b168f121a1 100644
--- a/arch/arm/mach-sunxi/Makefile
+++ b/arch/arm/mach-sunxi/Makefile@@ -1,2 +1,2 @@ obj-$(CONFIG_ARCH_SUNXI) += sunxi.o -obj-$(CONFIG_SMP) += platsmp.o headsmp.o +obj-$(CONFIG_SMP) += platsmp.o
diff --git a/arch/arm/mach-sunxi/headsmp.S b/arch/arm/mach-sunxi/headsmp.S
deleted file mode 100644
index a10d494fb37b..000000000000
--- a/arch/arm/mach-sunxi/headsmp.S
+++ /dev/null@@ -1,9 +0,0 @@ -#include <linux/linkage.h> -#include <linux/init.h> - - .section ".text.head", "ax" - -ENTRY(sun6i_secondary_startup) - msr cpsr_fsxc, #0xd3 - b secondary_startup -ENDPROC(sun6i_secondary_startup)
diff --git a/arch/arm/mach-sunxi/platsmp.c b/arch/arm/mach-sunxi/platsmp.c
index 7b141d8342a1..0c7dbce033cc 100644
--- a/arch/arm/mach-sunxi/platsmp.c
+++ b/arch/arm/mach-sunxi/platsmp.c@@ -82,7 +82,7 @@ static int sun6i_smp_boot_secondary(unsigned int cpu, spin_lock(&cpu_lock); /* Set CPU boot address */ - writel(virt_to_phys(sun6i_secondary_startup), + writel(virt_to_phys(secondary_startup), cpucfg_membase + CPUCFG_PRIVATE0_REG); /* Assert the CPU core in reset */
--
2.4.5