sh: Remove any reference to recursive functions from comments

Originally, dwarf_unwind_stack() was a recursive function and it seems
that some of the old comments were never updated.

Signed-off-by: Matt Fleming <matt@console-pimps.org>

1 files changed, 11 insertions, 11 deletions

diff --git a/arch/sh/kernel/dwarf.c b/arch/sh/kernel/dwarf.c
index ce8bff45d72c..f242cd120cf1 100644
--- a/arch/sh/kernel/dwarf.c
+++ b/arch/sh/kernel/dwarf.c
@@ -540,7 +540,8 @@ void dwarf_free_frame(struct dwarf_frame *frame)
 }
 
 /**
- *      dwarf_unwind_stack - recursively unwind the stack
+ *      dwarf_unwind_stack - unwind the stack
+ *
  *      @pc: address of the function to unwind
  *      @prev: struct dwarf_frame of the previous stackframe on the callstack
  *
@@ -558,9 +559,9 @@ struct dwarf_frame * dwarf_unwind_stack(unsigned long pc,
         unsigned long addr;
 
         /*
-         * If this is the first invocation of this recursive function we
-         * need get the contents of a physical register to get the CFA
-         * in order to begin the virtual unwinding of the stack.
+         * If we're starting at the top of the stack we need get the
+         * contents of a physical register to get the CFA in order to
+         * begin the virtual unwinding of the stack.
          *
          * NOTE: the return address is guaranteed to be setup by the
          * time this function makes its first function call.
@@ -582,9 +583,8 @@ struct dwarf_frame * dwarf_unwind_stack(unsigned long pc,
         fde = dwarf_lookup_fde(pc);
         if (!fde) {
                 /*
-                 * This is our normal exit path - the one that stops the
-                 * recursion. There's two reasons why we might exit
-                 * here,
+                 * This is our normal exit path. There are two reasons
+                 * why we might exit here,
                  *
                  *      a) pc has no asscociated DWARF frame info and so
                  *      we don't know how to unwind this frame. This is
@@ -626,10 +626,10 @@ struct dwarf_frame * dwarf_unwind_stack(unsigned long pc,
 
                 } else {
                         /*
-                         * Again, this is the first invocation of this
-                         * recurisve function. We need to physically
-                         * read the contents of a register in order to
-                         * get the Canonical Frame Address for this
+                         * Again, we're starting from the top of the
+                         * stack. We need to physically read
+                         * the contents of a register in order to get
+                         * the Canonical Frame Address for this
                          * function.
                          */
                         frame->cfa = dwarf_read_arch_reg(frame->cfa_register);