blackfin-dont-save-restore-retx-retn-rete.patch

   1 Index: include/asm-blackfin/mach-common/context.S
   2 ===================================================================
   3 --- include/asm-blackfin/mach-common/context.S  (revision 3496)
   4 +++ include/asm-blackfin/mach-common/context.S  (working copy)
   5 @@ -79,9 +79,6 @@
   6         [--sp] = RETS;
   7         r0 = RETI;
   8         [--sp] = r0;
   9 -       [--sp] = RETX;
  10 -       [--sp] = RETN;
  11 -       [--sp] = RETE;
  12         [--sp] = SEQSTAT;
  13         [--sp] = r0;    /* Skip IPEND as well. */
  14         /* Switch to other method of keeping interrupts disabled.  */
  15 @@ -146,9 +143,6 @@
  16         [--sp] = RETS;
  17         r0 = RETI;
  18         [--sp] = r0;
  19 -       [--sp] = RETX;
  20 -       [--sp] = RETN;
  21 -       [--sp] = RETE;
  22         [--sp] = SEQSTAT;
  23         [--sp] = r0;    /* Skip IPEND as well. */
  24         [--sp] = RETI;  /*orig_pc*/
  25 @@ -214,9 +208,6 @@
  26         [--sp] = RETS;
  27         r0 = RETI;
  28         [--sp] = r0;
  29 -       [--sp] = RETX;
  30 -       [--sp] = RETN;
  31 -       [--sp] = RETE;
  32         [--sp] = SEQSTAT;
  33  #ifdef CONFIG_KGDB
  34         r1.l = lo(IPEND);
  35 @@ -238,9 +229,6 @@
  36         sp += 4;        /* Skip orig_pc */
  37         sp += 4;        /* Skip IPEND */
  38         SEQSTAT = [sp++];
  39 -       RETE = [sp++];
  40 -       RETN = [sp++];
  41 -       RETX = [sp++];
  42         r0 = [sp++];
  43         RETI = r0;      /* Restore RETI indirectly when in exception */
  44         RETS = [sp++];
  45 @@ -292,9 +280,6 @@
  46         sp += 4;        /* Skip orig_pc */
  47         sp += 4;        /* Skip IPEND */
  48         SEQSTAT = [sp++];
  49 -       RETE = [sp++];
  50 -       RETN = [sp++];
  51 -       RETX = [sp++];
  52         RETI = [sp++];
  53         RETS = [sp++];
  54
  55 Index: arch/blackfin/mach-common/interrupt.S
  56 ===================================================================
  57 --- arch/blackfin/mach-common/interrupt.S       (revision 3499)
  58 +++ arch/blackfin/mach-common/interrupt.S       (working copy)
  59 @@ -92,9 +92,6 @@ __common_int_entry:
  60         [--sp] = RETS;
  61         r2 = RETI;
  62         [--sp] = r2;
  63 -       [--sp] = RETX;
  64 -       [--sp] = RETN;
  65 -       [--sp] = RETE;
  66         [--sp] = SEQSTAT;
  67         [--sp] = r1;    /* IPEND - R1 may or may not be set up before jumping here. */
  68