Commit 31d6490c authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
Browse files

powerpc/mm: Remove stale do_page_fault comment referring to SLB faults 



SLB faults no longer call do_page_fault, this was removed somewhere
between 2.6.0 and 2.6.12.

Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-17-npiggin@gmail.com
parent bf0e2374

arch/powerpc/mm/fault.c

+5 −7
Original line number Diff line number Diff line
@@ -377,13 +377,11 @@ static void sanity_check_fault(bool is_write, bool is_user, 


/*

 * For 600- and 800-family processors, the error_code parameter is DSISR

 * for a data fault, SRR1 for an instruction fault. For 400-family processors

 * the error_code parameter is ESR for a data fault, 0 for an instruction

 * fault.

 * For 64-bit processors, the error_code parameter is

 *  - DSISR for a non-SLB data access fault,

 *  - SRR1 & 0x08000000 for a non-SLB instruction access fault

 *  - 0 any SLB fault.

 * for a data fault, SRR1 for an instruction fault.

 * For 400-family processors the error_code parameter is ESR for a data fault,

 * 0 for an instruction fault.

 * For 64-bit processors, the error_code parameter is DSISR for a data access

 * fault, SRR1 & 0x08000000 for an instruction access fault.

 *

 * The return value is 0 if the fault was handled, or the signal

 * number if this is a kernel fault that can't be handled here.