# Re: \[PATCH v2\] sparc64: Add support for Application Data Integrity (ADI)

- From: Dave Hansen \<hidden\>
- Date: 2016-03-07 17:32:20 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2016/03/4703107
- Thread: https://ratatoskr.run/sparclinux/2016/03/4699675/t.md

```text
On 03/02/2016 12:39 PM, Khalid Aziz wrote:
> --- a/include/uapi/asm-generic/siginfo.h
> +++ b/include/uapi/asm-generic/siginfo.h
> @@ -206,7 +206,10 @@ typedef struct siginfo {
>  #define SEGV_MAPERR	(__SI_FAULT|1)	/* address not mapped to object */
>  #define SEGV_ACCERR	(__SI_FAULT|2)	/* invalid permissions for mapped object */
>  #define SEGV_BNDERR	(__SI_FAULT|3)  /* failed address bound checks */
> -#define NSIGSEGV	3
> +#define SEGV_ACCADI	(__SI_FAULT|4)	/* ADI not enabled for mapped object */
> +#define SEGV_ADIDERR	(__SI_FAULT|5)	/* Disrupting MCD error */
> +#define SEGV_ADIPERR	(__SI_FAULT|6)	/* Precise MCD exception */
> +#define NSIGSEGV	6

FYI, this will conflict with code in -tip right now:

> http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?h=mm/pkeys&id=cd0ea35ff5511cde299a61c21a95889b4a71464e

It's not a big deal to resolve, of course.
```