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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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4
arch/powerpc/lib/code-patching.c
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@ -231,7 +231,7 @@ bool is_offset_in_branch_range(long offset)
*/
bool is_conditional_branch(unsigned int instr)
{
unsigned int opcode = instr >> 26;
unsigned int opcode = ppc_inst_primary_opcode(instr);
if (opcode == 16) /* bc, bca, bcl, bcla */
return true;
@ -289,7 +289,7 @@ int create_cond_branch(unsigned int *instr, const unsigned int *addr,
static unsigned int branch_opcode(unsigned int instr)
{
return (instr >> 26) & 0x3F;
return ppc_inst_primary_opcode(instr) & 0x3F;
}
static int instr_is_branch_iform(unsigned int instr)