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Commit c2d474d6 authored by Matt Fleming's avatar Matt Fleming
Browse files

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: default avatarMatt Fleming <matt@console-pimps.org>
parent ed4fe7f4

arch/sh/kernel/dwarf.c

+11 −11
Original line number Diff line number Diff line
@@ -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);