Re: [alsa-devel] [PATCH] ASoC: wm5102: Use put_unaligned_be16

7 Jan 2015

      On Fri, Dec 26, 2014 at 10:14:57AM +0530, Vaishali Thakkar wrote:
...
This patch introduces the use of function put_unaligned_be16.
This is done using Coccinelle and semantic patch used is as follows:
@a@
typedef u16, __be16, uint16_t;
{u16,__be16,uint16_t} e16;
identifier tmp;
expression ptr;
expression y,e;
type T;
@@

tmp = cpu_to_be16(y);

<+... when != tmp
(

memcpy(ptr, (T)&tmp, (2|sizeof(u16)|sizeof(__be16)|sizeof(uint16_t)|sizeof(e16)));

put_unaligned_be16(y,ptr);

|

memcpy(ptr, (T)&tmp, ...);

put_unaligned_be16(y,ptr);

)
...+>
? tmp = e
@@ type T; identifier a.tmp; @@

T tmp;

...when != tmp
Signed-off-by: Vaishali Thakkar vthakkar1994@gmail.com
Acked-by: Charles Keepax ckeepax@opensource.wolfsonmicro.com
CCing patches@opensource.wolfsonmicro.com would be handy though.
Thanks,
Charles