target/linux/generic/patches-4.4/333-arc-enable-unaligned-access-in-kernel-mode.patch

   1 From af737b55fc7c61f17da9ae89fba536e0a9338e98 Mon Sep 17 00:00:00 2001
   2 From: Alexey Brodkin <abrodkin@synopsys.com>
   3 Date: Mon, 14 Mar 2016 17:26:34 +0300
   4 Subject: [PATCH] arc: enable unaligned access in kernel mode
   5
   6 This enables misaligned access handling even in kernel mode.
   7 Some wireless drivers (ath9k-htc and mt7601u) use misaligned accesses
   8 here and there and to cope with that without fixing stuff in the drivers
   9 we're just gracefully handling it on ARC.
  10
  11 Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
  12 ---
  13  arch/arc/kernel/unaligned.c | 2 +-
  14  1 file changed, 1 insertion(+), 1 deletion(-)
  15
  16 diff --git a/arch/arc/kernel/unaligned.c b/arch/arc/kernel/unaligned.c
  17 index abd961f..0b0cc97 100644
  18 --- a/arch/arc/kernel/unaligned.c
  19 +++ b/arch/arc/kernel/unaligned.c
  20 @@ -206,7 +206,7 @@ int misaligned_fixup(unsigned long address, struct pt_regs *regs,
  21         char buf[TASK_COMM_LEN];
  22
  23         /* handle user mode only and only if enabled by sysadmin */
  24 -       if (!user_mode(regs) || !unaligned_enabled)
  25 +       if (!unaligned_enabled)
  26                 return 1;
  27
  28         if (no_unaligned_warning) {
  29 --
  30 2.5.0
  31