Re: [PATCH 06/12] arm64: assembler: Remove endianness helper macros

[Will Deacon]

On Tue, Aug 11, 2026 at 05:04:43PM +0200, Ard Biesheuvel wrote:
> On Tue, 11 Aug 2026, at 16:01, Will Deacon wrote:
> > diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
> > index 87a822e5c4ca..8951ce693552 100644
> > --- a/arch/arm64/kernel/head.S
> > +++ b/arch/arm64/kernel/head.S
> > @@ -138,8 +138,7 @@ SYM_CODE_START_LOCAL(record_mmu_state)
> >  	b.ne	0f
> >  	mrs	x19, sctlr_el2
> >  0:
> > -CPU_LE( tbnz	x19, #SCTLR_ELx_EE_SHIFT, 1f	)
> > -CPU_BE( tbz	x19, #SCTLR_ELx_EE_SHIFT, 1f	)
> > +	tbnz	x19, #SCTLR_ELx_EE_SHIFT, 1f
> >  	tst	x19, #SCTLR_ELx_C		// Z := (C == 0)
> >  	and	x19, x19, #SCTLR_ELx_M		// isolate M bit
> >  	csel	x19, xzr, x19, eq		// clear x19 if Z
> 
> There is some more code that can be removed here - see
> 2ced0f30a426c7301350681f838344d5aea711e3

Good spot, thanks! I'll do some more surgery at -rc1.

Will