[PATCH 5.1 030/122] parisc: Allow live-patching of __meminit functions

Greg Kroah-Hartman
2019-05-23T19:34:47Z

From: Helge Deller <deller@gmx.de>

commit d19a12906e5e558c0f6b6cfece7b7caf1012ef95 upstream.

When making the text sections writeable with set_kernel_text_rw(1),
include all text sections including those in the __init section.
Otherwise functions marked with __meminit will stay read-only.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # 4.20+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
arch/parisc/mm/init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -495,7 +495,7 @@ static void __init map_pages(unsigned lo

void __init set_kernel_text_rw(int enable_read_write)
{
- unsigned long start = (unsigned long) _text;
+ unsigned long start = (unsigned long) __init_begin;
unsigned long end = (unsigned long) &data_start;

map_pages(start, __pa(start), end-start,