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parisc: Replace hardcoded value with PRIV_USER constant in ptrace.c 

Prefer usage of the PRIV_USER constant over the hard-coded value to set
the lowest 2 bits for the userspace privilege.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 5.16+
This commit is contained in:
Helge Deller 2023-02-01 11:04:06 +01:00
parent 5d1335dabb
commit 3f0c17809a
1 changed files with 3 additions and 3 deletions
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6
arch/parisc/kernel/ptrace.c
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@ -166,7 +166,7 @@ long arch_ptrace(struct task_struct *child, long request,
addr >= sizeof(struct pt_regs))
break;
if (addr == PT_IAOQ0 || addr == PT_IAOQ1) {
data |= 3; /* ensure userspace privilege */
data |= PRIV_USER; /* ensure userspace privilege */
}
if ((addr >= PT_GR1 && addr <= PT_GR31) ||
addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
@ -285,7 +285,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
if (addr >= sizeof(struct pt_regs))
break;
if (addr == PT_IAOQ0+4 || addr == PT_IAOQ1+4) {
data |= 3; /* ensure userspace privilege */
data |= PRIV_USER; /* ensure userspace privilege */
}
if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
/* Special case, fp regs are 64 bits anyway */
@ -484,7 +484,7 @@ static void set_reg(struct pt_regs *regs, int num, unsigned long val)
case RI(iaoq[0]):
case RI(iaoq[1]):
/* set 2 lowest bits to ensure userspace privilege: */
regs->iaoq[num - RI(iaoq[0])] = val | 3;
regs->iaoq[num - RI(iaoq[0])] = val | PRIV_USER;
return;
case RI(sar): regs->sar = val;
return;