queue-4.14/arc-uacces-remove-lp_start-lp_end-from-clobber-list.patch

   1 From d0b873a2289b932e0817d4d5b45ab5f81a5e526a Mon Sep 17 00:00:00 2001
   2 From: Vineet Gupta <vgupta@synopsys.com>
   3 Date: Tue, 5 Feb 2019 10:07:07 -0800
   4 Subject: ARC: uacces: remove lp_start, lp_end from clobber list
   5
   6 [ Upstream commit d5e3c55e01d8b1774b37b4647c30fb22f1d39077 ]
   7
   8 Newer ARC gcc handles lp_start, lp_end in a different way and doesn't
   9 like them in the clobber list.
  10
  11 Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
  12 Signed-off-by: Sasha Levin <sashal@kernel.org>
  13 ---
  14  arch/arc/include/asm/uaccess.h | 8 ++++----
  15  1 file changed, 4 insertions(+), 4 deletions(-)
  16
  17 diff --git a/arch/arc/include/asm/uaccess.h b/arch/arc/include/asm/uaccess.h
  18 index c9173c02081c..eabc3efa6c6d 100644
  19 --- a/arch/arc/include/asm/uaccess.h
  20 +++ b/arch/arc/include/asm/uaccess.h
  21 @@ -207,7 +207,7 @@ raw_copy_from_user(void *to, const void __user *from, unsigned long n)
  22                 */
  23                   "=&r" (tmp), "+r" (to), "+r" (from)
  24                 :
  25 -               : "lp_count", "lp_start", "lp_end", "memory");
  26 +               : "lp_count", "memory");
  27
  28                 return n;
  29         }
  30 @@ -433,7 +433,7 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
  31                  */
  32                   "=&r" (tmp), "+r" (to), "+r" (from)
  33                 :
  34 -               : "lp_count", "lp_start", "lp_end", "memory");
  35 +               : "lp_count", "memory");
  36
  37                 return n;
  38         }
  39 @@ -653,7 +653,7 @@ static inline unsigned long __arc_clear_user(void __user *to, unsigned long n)
  40         "       .previous                       \n"
  41         : "+r"(d_char), "+r"(res)
  42         : "i"(0)
  43 -       : "lp_count", "lp_start", "lp_end", "memory");
  44 +       : "lp_count", "memory");
  45
  46         return res;
  47  }
  48 @@ -686,7 +686,7 @@ __arc_strncpy_from_user(char *dst, const char __user *src, long count)
  49         "       .previous                       \n"
  50         : "+r"(res), "+r"(dst), "+r"(src), "=r"(val)
  51         : "g"(-EFAULT), "r"(count)
  52 -       : "lp_count", "lp_start", "lp_end", "memory");
  53 +       : "lp_count", "memory");
  54
  55         return res;
  56  }
  57 --
  58 2.19.1
  59