ftrace: remove packed attribute on ftrace_page.

It causes unaligned access traps on platforms like sparc
(ftrace_page may be marked packed, but once we return
a dyn_ftrace sub-object from this array to another piece
of code, the "packed" part of the typing information doesn't
propagate).

But also, it didn't serve any purpose either.  Even if packed,
on 64-bit or 32-bit, it didn't give us any more dyn_ftrace
entries per-page.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index af5ad89..07b2a14 100644 (file)
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -177,9 +177,9 @@ static DEFINE_MUTEX(ftrace_filter_lock);
 
 struct ftrace_page {
        struct ftrace_page      *next;
-       int                     index;
+       unsigned long           index;
        struct dyn_ftrace       records[];
-} __attribute__((packed));
+};
 
 #define ENTRIES_PER_PAGE \
   ((PAGE_SIZE - sizeof(struct ftrace_page)) / sizeof(struct dyn_ftrace))