MIPS: BPF: Avoid unreachable code on little endian
On little endian, avoid generating the big endian version of the code
by using #else in addition to #ifdef #endif. Also fix one alignment
issue wrt delay slot.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: stable@vger.kernel.org # v4.2+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11097/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/net/bpf_jit_asm.S b/arch/mips/net/bpf_jit_asm.S
index e927260..4f54cb1 100644
--- a/arch/mips/net/bpf_jit_asm.S
+++ b/arch/mips/net/bpf_jit_asm.S
@@ -151,9 +151,10 @@
wsbh t0, $r_s0
jr $r_ra
rotr $r_A, t0, 16
-#endif
+#else
jr $r_ra
- move $r_A, $r_s0
+ move $r_A, $r_s0
+#endif
END(bpf_slow_path_word)
@@ -162,9 +163,10 @@
#ifdef CONFIG_CPU_LITTLE_ENDIAN
jr $r_ra
wsbh $r_A, $r_s0
-#endif
+#else
jr $r_ra
move $r_A, $r_s0
+#endif
END(bpf_slow_path_half)