Le 25/07/2022 à 08:31, Rohan McLure a écrit : > Interrupt handlers on 64s systems will often need to save register state > from the interrupted process to make space for loading special purpose > registers or for internal state. > > Fix a comment documenting a common code path macro in the beginning of > interrupt handlers where r10 is saved to the PACA to afford space for > the value of the CFAR. Comment is currently written as if r10-r12 are > saved to PACA, but in fact only r10 is saved.
Maybe it would be interesting to know from which patch the error comes. > > Signed-off-by: Rohan McLure <rmcl...@linux.ibm.com> > --- > V1 -> V2: Given its own commit > --- > arch/powerpc/kernel/exceptions-64s.S | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/powerpc/kernel/exceptions-64s.S > b/arch/powerpc/kernel/exceptions-64s.S > index b66dd6f775a4..102896fc6a86 100644 > --- a/arch/powerpc/kernel/exceptions-64s.S > +++ b/arch/powerpc/kernel/exceptions-64s.S > @@ -281,7 +281,7 @@ BEGIN_FTR_SECTION > mfspr r9,SPRN_PPR > END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) > HMT_MEDIUM > - std r10,IAREA+EX_R10(r13) /* save r10 - r12 */ > + std r10,IAREA+EX_R10(r13) /* save r10 */ > .if ICFAR > BEGIN_FTR_SECTION > mfspr r10,SPRN_CFAR
