[PATCH 1/5] arch/arc: unwind.c: replace swap function with built-in one

[Andrey Abramov]

Replace swap_eh_frame_hdr_table_entries with built-in one, because
swap_eh_frame_hdr_table_entries does a simple byte to byte swap.

Signed-off-by: Andrey Abramov <st5...@yandex.ru>
---
 arch/arc/kernel/unwind.c | 20 ++------------------
 1 file changed, 2 insertions(+), 18 deletions(-)

diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index 271e9fafa479..7610fe84afea 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -248,20 +248,6 @@ static int cmp_eh_frame_hdr_table_entries(const void *p1, 
const void *p2)
        return (e1->start > e2->start) - (e1->start < e2->start);
 }
 
-static void swap_eh_frame_hdr_table_entries(void *p1, void *p2, int size)
-{
-       struct eh_frame_hdr_table_entry *e1 = p1;
-       struct eh_frame_hdr_table_entry *e2 = p2;
-       unsigned long v;
-
-       v = e1->start;
-       e1->start = e2->start;
-       e2->start = v;
-       v = e1->fde;
-       e1->fde = e2->fde;
-       e2->fde = v;
-}
-
 static void init_unwind_hdr(struct unwind_table *table,
                            void *(*alloc) (unsigned long))
 {
@@ -354,10 +340,8 @@ static void init_unwind_hdr(struct unwind_table *table,
        }
        WARN_ON(n != header->fde_count);
 
-       sort(header->table,
-            n,
-            sizeof(*header->table),
-            cmp_eh_frame_hdr_table_entries, swap_eh_frame_hdr_table_entries);
+       sort(header->table, n,
+            sizeof(*header->table), cmp_eh_frame_hdr_table_entries, NULL);
 
        table->hdrsz = hdrSize;
        smp_wmb();
-- 
2.21.0