Re: [PATCH v5 18/22] powerpc/syscall: Remove FULL_REGS verification in system_call_exception

2021-02-09 Thread Nicholas Piggin
Excerpts from Christophe Leroy's message of February 10, 2021 12:31 am: > > > Le 09/02/2021 à 03:02, Nicholas Piggin a écrit : >> Excerpts from Christophe Leroy's message of February 9, 2021 1:10 am: >>> For book3s/64, FULL_REGS() is 'true' at all time, so the test voids. >>> For others, non

Re: [PATCH v5 18/22] powerpc/syscall: Remove FULL_REGS verification in system_call_exception

2021-02-09 Thread Christophe Leroy
Le 09/02/2021 à 03:02, Nicholas Piggin a écrit : Excerpts from Christophe Leroy's message of February 9, 2021 1:10 am: For book3s/64, FULL_REGS() is 'true' at all time, so the test voids. For others, non volatile registers are saved inconditionally. So the verification is pointless. Should

Re: [PATCH v5 18/22] powerpc/syscall: Remove FULL_REGS verification in system_call_exception

2021-02-08 Thread Nicholas Piggin
Excerpts from Christophe Leroy's message of February 9, 2021 1:10 am: > For book3s/64, FULL_REGS() is 'true' at all time, so the test voids. > For others, non volatile registers are saved inconditionally. > > So the verification is pointless. > > Should one fail to do it, it would anyway be