Provide an iterator to go through boot module array searching based on type.
Signed-off-by: Daniel P. Smith <dpsm...@apertussolutions.com>
---
xen/arch/x86/include/asm/bootinfo.h | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/xen/arch/x86/include/asm/bootinfo.h
b/xen/arch/x86/include/asm/bootinfo.h
index 2ee0d5ad6d72..c79678840d31 100644
--- a/xen/arch/x86/include/asm/bootinfo.h
+++ b/xen/arch/x86/include/asm/bootinfo.h
@@ -54,8 +54,24 @@ struct boot_info {
struct boot_module mods[MAX_NR_BOOTMODS + 1];
};
-#endif /* __XEN_X86_BOOTINFO_H__ */
+static inline int __init next_boot_module_index(
+ const struct boot_info *bi, enum bootmod_type t, int offset)
+{
+ int i;
+
+ for ( i = offset; i < bi->nr_modules; i++ )
+ {
+ if ( bi->mods[i].type == t )
+ return i;
+ }
+
+ return -1;
+}
+#define first_boot_module_index(bi, t) \
+ next_boot_module_index(bi, t, 0)
+
+#endif /* __XEN_X86_BOOTINFO_H__ */
/*
* Local variables:
* mode: C
--
2.30.2
