riscv: module: Use generic cmp_int() instead of custom cmp_3way()

The module-sections.c file defines a custom cmp_3way() macro to perform
3-way comparisons during relocation sorting.

Instead of maintaining our own implementation, use the generic
cmp_int() macro provided by the already included <linux/sort.h>. This
removes redundant code and relies on standard kernel interfaces.

Signed-off-by: Florian Schmaus <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Paul Walmsley <[email protected]>

arch/riscv/kernel/module-sections.c

@@ -56,17 +56,15 @@ unsigned long module_emit_plt_entry(struct module *mod, unsigned long val)
 	return (unsigned long)&plt[i];
 }
 
-#define cmp_3way(a, b)	((a) < (b) ? -1 : (a) > (b))
-
 static int cmp_rela(const void *a, const void *b)
 {
 	const Elf_Rela *x = a, *y = b;
 	int i;
 
 	/* sort by type, symbol index and addend */
-	i = cmp_3way(x->r_info, y->r_info);
+	i = cmp_int(x->r_info, y->r_info);
 	if (i == 0)
-		i = cmp_3way(x->r_addend, y->r_addend);
+		i = cmp_int(x->r_addend, y->r_addend);
 	return i;
 }