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powerpc: Use a function for getting the instruction op code

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In preparation for using a data type for instructions that can not be
directly used with the '>>' operator use a function for getting the op
code of an instruction.

Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Reviewed-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200506034050.24806-9-jniethe5@gmail.com
This commit is contained in:
Jordan Niethe
2020-05-06 13:40:28 +10:00
committed by Michael Ellerman
parent 777e26f0ed
commit 8094892d1a
6 changed files with 13 additions and 6 deletions
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3
arch/powerpc/mm/fault.c
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@@ -41,6 +41,7 @@
#include <asm/siginfo.h>
#include <asm/debug.h>
#include <asm/kup.h>
#include <asm/inst.h>
/*
* Check whether the instruction inst is a store using
@@ -52,7 +53,7 @@ static bool store_updates_sp(unsigned int inst)
if (((ppc_inst_val(inst) >> 16) & 0x1f) != 1)
return false;
/* check major opcode */
switch (inst >> 26) {
switch (ppc_inst_primary_opcode(inst)) {
case OP_STWU:
case OP_STBU:
case OP_STHU: