Commit 0157141a authored Jan 06, 2009 by Sam Ravnborg Committed by David S. Miller Jan 06, 2009

sparc: refactor code in fault_32.c



The sparc allmodconfig build broke due to enabling of the
branch_tracer that does some very clever things with
all if conditions. This caused my gcc 3.4.5 to be so confused that
it emitted a warning:

arch/sparc/mm/fault_32.c: In function `do_sparc_fault':
arch/sparc/mm/fault_32.c:176: warning: 'fixup' might be used uninitialized in this function

And with -Werror this broke the build.

Refactor code so it:
1) becomes more readable
2) no longer emit a warning with the branch_tracer enabled

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent ff9aefbf

arch/sparc/mm/fault_32.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -283,7 +283,8 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
		/* Is this in ex_table? */
		no_context:
		g2 = regs->u_regs[UREG_G2];
		if (!from_user && (fixup = search_extables_range(regs->pc, &g2))) {
		if (!from_user) {
		fixup = search_extables_range(regs->pc, &g2);
		if (fixup > 10) { /* Values below are reserved for other things */
		extern const unsigned __memset_start[];
		extern const unsigned __memset_end[];