linux-kernel - Re: [PATCH 12/16] asm-generic: siginfo: remove obsolete #ifdefs

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Date:   Wed, 14 Mar 2018 11:38:29 -0500
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     Arnd Bergmann <arnd@...db.de>
Cc:     linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        Al Viro <viro@...iv.linux.org.uk>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 12/16] asm-generic: siginfo: remove obsolete #ifdefs

Arnd Bergmann <arnd@...db.de> writes:

> The frv, tile and blackfin architectures are being removed, so
> we can clean up this header by removing all the special cases
> except those for ia64.

Acked-by: "Eric W. Biederman" <ebiederm@...ssion.com>

>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  include/uapi/asm-generic/siginfo.h | 36 ++----------------------------------
>  1 file changed, 2 insertions(+), 34 deletions(-)
>
> diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
> index 85dc965afd89..b2ebf16c391a 100644
> --- a/include/uapi/asm-generic/siginfo.h
> +++ b/include/uapi/asm-generic/siginfo.h
> @@ -179,28 +179,13 @@ typedef struct siginfo {
>   * SIGILL si_codes
>   */
>  #define ILL_ILLOPC	1	/* illegal opcode */
> -#ifdef __bfin__
> -# define ILL_ILLPARAOP	2	/* illegal opcode combine */
> -#endif
>  #define ILL_ILLOPN	2	/* illegal operand */
>  #define ILL_ILLADR	3	/* illegal addressing mode */
>  #define ILL_ILLTRP	4	/* illegal trap */
> -#ifdef __bfin__
> -# define ILL_ILLEXCPT	4	/* unrecoverable exception */
> -#endif
>  #define ILL_PRVOPC	5	/* privileged opcode */
>  #define ILL_PRVREG	6	/* privileged register */
>  #define ILL_COPROC	7	/* coprocessor error */
>  #define ILL_BADSTK	8	/* internal stack error */
> -#ifdef __bfin__
> -# define ILL_CPLB_VI	9	/* D/I CPLB protect violation */
> -# define ILL_CPLB_MISS	10	/* D/I CPLB miss */
> -# define ILL_CPLB_MULHIT 11	/* D/I CPLB multiple hit */
> -#endif
> -#ifdef __tile__
> -# define ILL_DBLFLT	9	/* double fault */
> -# define ILL_HARDWALL	10	/* user networks hardwall violation */
> -#endif
>  #ifdef __ia64__
>  # define ILL_BADIADDR	9	/* unimplemented instruction address */
>  # define __ILL_BREAK	10	/* illegal break */
> @@ -219,9 +204,6 @@ typedef struct siginfo {
>  #define FPE_FLTRES	6	/* floating point inexact result */
>  #define FPE_FLTINV	7	/* floating point invalid operation */
>  #define FPE_FLTSUB	8	/* subscript out of range */
> -#ifdef __frv__
> -# define FPE_MDAOVF	9	/* media overflow */
> -#endif
>  #ifdef __ia64__
>  # define __FPE_DECOVF	9	/* decimal overflow */
>  # define __FPE_DECDIV	10	/* decimal division by zero */
> @@ -236,11 +218,7 @@ typedef struct siginfo {
>   */
>  #define SEGV_MAPERR	1	/* address not mapped to object */
>  #define SEGV_ACCERR	2	/* invalid permissions for mapped object */
> -#ifdef __bfin__
> -# define SEGV_STACKFLOW	3	/* stack overflow */
> -#else
> -# define SEGV_BNDERR	3	/* failed address bound checks */
> -#endif
> +#define SEGV_BNDERR	3	/* failed address bound checks */
>  #ifdef __ia64__
>  # define __SEGV_PSTKOVF	4	/* paragraph stack overflow */
>  #else
> @@ -254,12 +232,8 @@ typedef struct siginfo {
>  #define BUS_ADRALN	1	/* invalid address alignment */
>  #define BUS_ADRERR	2	/* non-existent physical address */
>  #define BUS_OBJERR	3	/* object specific hardware error */
> -#ifdef __bfin__
> -# define BUS_OPFETCH	4	/* error from instruction fetch */
> -#else
>  /* hardware memory error consumed on a machine check: action required */
> -# define BUS_MCEERR_AR	4
> -#endif
> +#define BUS_MCEERR_AR	4
>  /* hardware memory error detected in process but not consumed: action optional*/
>  #define BUS_MCEERR_AO	5
>  #define NSIGBUS		5
> @@ -271,12 +245,6 @@ typedef struct siginfo {
>  #define TRAP_TRACE	2	/* process trace trap */
>  #define TRAP_BRANCH     3	/* process taken branch trap */
>  #define TRAP_HWBKPT     4	/* hardware breakpoint/watchpoint */
> -#ifdef __bfin__
> -# define TRAP_STEP	1	/* single-step breakpoint */
> -# define TRAP_TRACEFLOW	2	/* trace buffer overflow */
> -# define TRAP_WATCHPT	3	/* watchpoint match */
> -# define TRAP_ILLTRAP	4	/* illegal trap */
> -#endif
>  #define NSIGTRAP	4
>  
>  /*