x86/floppy: Use designated initializers

Prepare to mark sensitive kernel structures for randomization by making
sure they're using designated initializers. These were identified during
allyesconfig builds of x86, arm, and arm64, with most initializer fixes
extracted from grsecurity.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20161217213705.GA1248@beast
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/include/asm/floppy.h b/arch/x86/include/asm/floppy.h
index 1c7eefe..7ec59ed 100644 (file)
--- a/arch/x86/include/asm/floppy.h
+++ b/arch/x86/include/asm/floppy.h
@@ -229,18 +229,18 @@ static struct fd_routine_l {
        int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
 } fd_routine[] = {
        {
-               request_dma,
-               free_dma,
-               get_dma_residue,
-               dma_mem_alloc,
-               hard_dma_setup
+               ._request_dma           = request_dma,
+               ._free_dma              = free_dma,
+               ._get_dma_residue       = get_dma_residue,
+               ._dma_mem_alloc         = dma_mem_alloc,
+               ._dma_setup             = hard_dma_setup
        },
        {
-               vdma_request_dma,
-               vdma_nop,
-               vdma_get_dma_residue,
-               vdma_mem_alloc,
-               vdma_dma_setup
+               ._request_dma           = vdma_request_dma,
+               ._free_dma              = vdma_nop,
+               ._get_dma_residue       = vdma_get_dma_residue,
+               ._dma_mem_alloc         = vdma_mem_alloc,
+               ._dma_setup             = vdma_dma_setup
        }
 };