[PATCH 5/9] riscv: simplify stack pointer setup in head.S

[Christoph Hellwig <hch@lst.de>]

We don't need THREAD_SIZE in asm-offsets.c as we can just calculate
the value of init_thread_union + THREAD_SIZE using cpp, just like
we do a few lines above.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/riscv/kernel/asm-offsets.c | 3 ---
 arch/riscv/kernel/head.S        | 5 +----
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/riscv/kernel/asm-offsets.c b/arch/riscv/kernel/asm-offsets.c
index dac98348c6a3..578bb5efc085 100644
--- a/arch/riscv/kernel/asm-offsets.c
+++ b/arch/riscv/kernel/asm-offsets.c
@@ -312,9 +312,6 @@ void asm_offsets(void)
 		- offsetof(struct task_struct, thread.fstate.f[0])
 	);
 
-	/* The assembler needs access to THREAD_SIZE as well. */
-	DEFINE(ASM_THREAD_SIZE, THREAD_SIZE);
-
 	/*
 	 * We allocate a pt_regs on the stack when entering the kernel.  This
 	 * ensures the alignment is sane.
diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S
index fe884cd69abd..9344d9ceda24 100644
--- a/arch/riscv/kernel/head.S
+++ b/arch/riscv/kernel/head.S
@@ -68,10 +68,7 @@ clear_bss_done:
 	/* Restore C environment */
 	la tp, init_task
 	sw zero, TASK_TI_CPU(tp)
-
-	la sp, init_thread_union
-	li a0, ASM_THREAD_SIZE
-	add sp, sp, a0
+	la sp, init_thread_union + THREAD_SIZE
 
 	/* Start the kernel */
 	mv a0, s0
-- 
2.20.1


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