sh: Simplify kernel_thread_helper() for sh32. (43f8f9b9) · Commits · 戴 / test

This can use the same implementation as sh64, the generated assembly is the same between the new and old version, so there is not much point in leaving it open coded in inline assembly. This is preparatory work for future consolidation of the _32/_64 variants. Signed-off-by:

Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/process_32.c

+4 −15

Original line number	Diff line number	Diff line
		@@ -97,21 +97,10 @@ void show_regs(struct pt_regs * regs)
		/*
		* Create a kernel thread
		*/

		/*
		* This is the mechanism for creating a new kernel thread.
		*
		*/
		extern void kernel_thread_helper(void);
		__asm__(".align 5\n"
		"kernel_thread_helper:\n\t"
		"jsr @r5\n\t"
		" nop\n\t"
		"mov.l 1f, r1\n\t"
		"jsr @r1\n\t"
		" mov r0, r4\n\t"
		".align 2\n\t"
		"1:.long do_exit");
		ATTRIB_NORET void kernel_thread_helper(void arg, int (fn)(void *))
		{
		do_exit(fn(arg));
		}

		/* Don't use this in BL=1(cli). Or else, CPU resets! */
		int kernel_thread(int (fn)(void ), void * arg, unsigned long flags)

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