From: Christophe Leroy Date: Thu, 6 Aug 2020 06:01:42 +0000 (+0000) Subject: powerpc/32s: Fix assembler warning about r0 X-Git-Tag: v4.14.326~155 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87c09eb8f4e8a82c78d1a1c5da566260c50bb243;p=thirdparty%2Fkernel%2Fstable.git powerpc/32s: Fix assembler warning about r0 commit b51ba4fe2e134b631f9c8f45423707aab71449b5 upstream. The assembler says: arch/powerpc/kernel/head_32.S:1095: 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: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/2b69ac8e1cddff6f808fc7415907179eab4aae9e.1596693679.git.christophe.leroy@csgroup.eu Signed-off-by: Greg Kroah-Hartman --- diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 29b2fed932897..1fb98efd54044 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -986,7 +986,7 @@ start_here: */ lis r5, abatron_pteptrs@h ori r5, r5, abatron_pteptrs@l - stw r5, 0xf0(r0) /* This much match your Abatron config */ + stw r5, 0xf0(0) /* This much match your Abatron config */ lis r6, swapper_pg_dir@h ori r6, r6, swapper_pg_dir@l tophys(r5, r5)