ARC: Code cosmetics (Nothing semantical)

* reduce editor lines taken by pt_regs
* ARCompact ISA specific part of TLB Miss handlers clubbed together
* cleanup some comments

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

2 files changed, 10 insertions, 32 deletions

diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
index c9938e7a7dbd..1bfeec2c0558 100644
--- a/arch/arc/include/asm/ptrace.h
+++ b/arch/arc/include/asm/ptrace.h
@@ -20,27 +20,17 @@ struct pt_regs {
 
         /* Real registers */
         long bta;       /* bta_l1, bta_l2, erbta */
-        long lp_start;
-        long lp_end;
-        long lp_count;
+
+        long lp_start, lp_end, lp_count;
+
         long status32;  /* status32_l1, status32_l2, erstatus */
         long ret;       /* ilink1, ilink2 or eret */
         long blink;
         long fp;
         long r26;       /* gp */
-        long r12;
-        long r11;
-        long r10;
-        long r9;
-        long r8;
-        long r7;
-        long r6;
-        long r5;
-        long r4;
-        long r3;
-        long r2;
-        long r1;
-        long r0;
+
+        long r12, r11, r10, r9, r8, r7, r6, r5, r4, r3, r2, r1, r0;
+
         long sp;        /* user/kernel sp depending on where we came from  */
         long orig_r0;
 
@@ -70,19 +60,7 @@ struct pt_regs {
 /* Callee saved registers - need to be saved only when you are scheduled out */
 
 struct callee_regs {
-        long r25;
-        long r24;
-        long r23;
-        long r22;
-        long r21;
-        long r20;
-        long r19;
-        long r18;
-        long r17;
-        long r16;
-        long r15;
-        long r14;
-        long r13;
+        long r25, r24, r23, r22, r21, r20, r19, r18, r17, r16, r15, r14, r13;
 };
 
 #define instruction_pointer(regs)       ((regs)->ret)
diff --git a/arch/arc/include/asm/spinlock_types.h b/arch/arc/include/asm/spinlock_types.h
index 8276bfd61704..662627ced4f2 100644
--- a/arch/arc/include/asm/spinlock_types.h
+++ b/arch/arc/include/asm/spinlock_types.h
@@ -20,9 +20,9 @@ typedef struct {
 #define __ARCH_SPIN_LOCK_LOCKED         { __ARCH_SPIN_LOCK_LOCKED__ }
 
 /*
- * Unlocked:     0x01_00_00_00
- * Read lock(s): 0x00_FF_00_00 to say 0x01
- * Write lock:   0x0, but only possible if prior value "unlocked" 0x0100_0000
+ * Unlocked     : 0x0100_0000
+ * Read lock(s) : 0x00FF_FFFF to 0x01  (Multiple Readers decrement it)
+ * Write lock   : 0x0, but only if prior value is "unlocked" 0x0100_0000
  */
 typedef struct {
         volatile unsigned int   counter;