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Don't fetch the current instruction for faults on user "trap" instructions.

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The value of 'instr' was not used to handle the fault.

Reported by:	GCC's -Wunused-but-set-variable
This commit is contained in:
John Baldwin 2018-04-24 17:31:20 +00:00
parent beea560039
commit e920aebafe
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=332945
1 changed files with 0 additions and 3 deletions
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3
sys/mips/mips/trap.c
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@ -875,15 +875,12 @@ trap(struct trapframe *trapframe)
case T_TRAP + T_USER:
{
intptr_t va;
uint32_t instr;
struct trapframe *locr0 = td->td_frame;
/* compute address of trap instruction */
va = trapframe->pc;
if (DELAYBRANCH(trapframe->cause))
va += sizeof(int);
/* read break instruction */
instr = fuword32((caddr_t)va);
if (DELAYBRANCH(trapframe->cause)) { /* Check BD bit */
locr0->pc = MipsEmulateBranch(locr0, trapframe->pc, 0,