tile: don't assume user privilege is zero

Technically, user privilege is anything less than kernel
privilege.  We modify the existing user_mode() macro to have
this semantic (and use it in a couple of places it wasn't being
used before), and add an IS_KERNEL_EX1() macro to the assembly
code as well.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/tile/kernel/stack.c b/arch/tile/kernel/stack.c
index 24fd223df65d..362284af3afd 100644
--- a/arch/tile/kernel/stack.c
+++ b/arch/tile/kernel/stack.c
@@ -103,7 +103,7 @@ static struct pt_regs *valid_fault_handler(struct KBacktraceIterator* kbt)
             p->sp >= sp) {
                 if (kbt->verbose)
                         pr_err("  <%s while in kernel mode>\n", fault);
-        } else if (EX1_PL(p->ex1) == USER_PL &&
+        } else if (user_mode(p) &&
                    p->sp < PAGE_OFFSET && p->sp != 0) {
                 if (kbt->verbose)
                         pr_err("  <%s while in user mode>\n", fault);