m32r: use generic sys_pipe (9b013c28) · Commits · 戴 / test

m32r can use the generic sys_pipe implementation. The current sys_pipe implementation on m32r only differes from the generic one by passing a lot of additional unused registers to sys_pipe. Reviewed and tested by Hirokazu Takata. Signed-off-by:

Christoph Hellwig <hch@lst.de> Acked-by:

Hirokazu Takata <takata@linux-m32r.org> Signed-off-by:

Linus Torvalds <torvalds@linux-foundation.org>

arch/m32r/kernel/sys_m32r.c

+0 −23

Original line number	Diff line number	Diff line
		@@ -76,29 +76,6 @@ asmlinkage int sys_tas(int __user *addr)
		return oldval;
		}

		/*
		* sys_pipe() is the normal C calling standard for creating
		* a pipe. It's not the way Unix traditionally does this, though.
		*/
		asmlinkage int
		sys_pipe(unsigned long r0, unsigned long r1, unsigned long r2,
		unsigned long r3, unsigned long r4, unsigned long r5,
		unsigned long r6, struct pt_regs regs)
		{
		int fd[2];
		int error;

		error = do_pipe(fd);
		if (!error) {
		if (copy_to_user((void __user )r0, fd, 2sizeof(int))) {
		sys_close(fd[0]);
		sys_close(fd[1]);
		error = -EFAULT;
		}
		}
		return error;
		}

		asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
		unsigned long prot, unsigned long flags,
		unsigned long fd, unsigned long pgoff)

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