Commit 8d8a629d authored Jul 22, 2020 by Michael Ellerman

powerpc/40x: Fix assembler warning about r0



The assembler says:
  arch/powerpc/kernel/head_40x.S:623: Warning: invalid register expression

It's objecting to the use of r0 as the RA argument. That's because
when RA = 0 the literal value 0 is used, rather than the content of
r0, making the use of r0 in the source potentially confusing.

Fix it to use a literal 0, the generated code is identical.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200722022422.825197-1-mpe@ellerman.id.au

parent af0870c4

arch/powerpc/kernel/head_40x.S

+1 −1

Original line number	Diff line number	Diff line
		@@ -620,7 +620,7 @@ start_here:
		ori r6, r6, swapper_pg_dir@l
		lis r5, abatron_pteptrs@h
		ori r5, r5, abatron_pteptrs@l
		stw r5, 0xf0(r0) /* Must match your Abatron config file */
		stw r5, 0xf0(0) /* Must match your Abatron config file */
		tophys(r5,r5)
		stw r6, 0(r5)

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