[PATCH 10/22] signal: Remove unnecessary ifdefs now that there is only one struct siginfo

From: Eric W. Biederman
Date: Mon Jan 15 2018 - 19:42:11 EST


Remove HAVE_ARCH_SIGINFO_T
Remove __ARCH_SIGSYS

Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
---
include/linux/signal.h | 2 --
include/uapi/asm-generic/siginfo.h | 8 --------
kernel/signal.c | 4 ----
3 files changed, 14 deletions(-)

diff --git a/include/linux/signal.h b/include/linux/signal.h
index 87abf0c29ed7..a9bc7e1b077e 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -30,9 +30,7 @@ enum siginfo_layout {
SIL_FAULT,
SIL_CHLD,
SIL_RT,
-#ifdef __ARCH_SIGSYS
SIL_SYS,
-#endif
};

enum siginfo_layout siginfo_layout(int sig, int si_code);
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index 00829f74dcb6..a650d252de0a 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -44,8 +44,6 @@ typedef union sigval {
#define __ARCH_SI_ATTRIBUTES
#endif

-#ifndef HAVE_ARCH_SIGINFO_T
-
typedef struct siginfo {
int si_signo;
#ifndef __ARCH_HAS_SWAPPED_SIGINFO
@@ -128,10 +126,6 @@ typedef struct siginfo {
} _sifields;
} __ARCH_SI_ATTRIBUTES siginfo_t;

-/* If the arch shares siginfo, then it has SIGSYS. */
-#define __ARCH_SIGSYS
-#endif
-
/*
* How these fields are to be accessed.
*/
@@ -156,11 +150,9 @@ typedef struct siginfo {
#define si_pkey _sifields._sigfault._pkey
#define si_band _sifields._sigpoll._band
#define si_fd _sifields._sigpoll._fd
-#ifdef __ARCH_SIGSYS
#define si_call_addr _sifields._sigsys._call_addr
#define si_syscall _sifields._sigsys._syscall
#define si_arch _sifields._sigsys._arch
-#endif

/*
* si_code values
diff --git a/kernel/signal.c b/kernel/signal.c
index 62c642899290..47c87b1d0b8a 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2697,9 +2697,7 @@ enum siginfo_layout siginfo_layout(int sig, int si_code)
#endif
[SIGCHLD] = { NSIGCHLD, SIL_CHLD },
[SIGPOLL] = { NSIGPOLL, SIL_POLL },
-#ifdef __ARCH_SIGSYS
[SIGSYS] = { NSIGSYS, SIL_SYS },
-#endif
};
if ((sig < ARRAY_SIZE(filter)) && (si_code <= filter[sig].limit))
layout = filter[sig].layout;
@@ -2804,13 +2802,11 @@ int copy_siginfo_to_user(siginfo_t __user *to, const siginfo_t *from)
err |= __put_user(from->si_uid, &to->si_uid);
err |= __put_user(from->si_ptr, &to->si_ptr);
break;
-#ifdef __ARCH_SIGSYS
case SIL_SYS:
err |= __put_user(from->si_call_addr, &to->si_call_addr);
err |= __put_user(from->si_syscall, &to->si_syscall);
err |= __put_user(from->si_arch, &to->si_arch);
break;
-#endif
}
return err;
}
--
2.14.1