sparc64: Update signal delivery to use new helper functions

Commit f8ec66014ffd ("signal: Add send_sig_fault and force_sig_fault")
added new helper functions to streamline signal delivery. This patch
updates signal delivery for new/updated handlers for ADI related
exceptions to use the helper function.

Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Khalid Aziz <khalid@gonehiking.org>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index f36a40217f6c89e3740540611cd8982ec5b9bcc0..462a21abd1054c828ce452d0f1c2d3b62a6f14a2 100644 (file)
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -362,7 +362,6 @@ void sun4v_data_access_exception(struct pt_regs *regs, unsigned long addr, unsig
 {
        unsigned short type = (type_ctx >> 16);
        unsigned short ctx  = (type_ctx & 0xffff);
-       siginfo_t info;
 
        if (notify_die(DIE_TRAP, "data access exception", regs,
                       0, 0x8, SIGTRAP) == NOTIFY_STOP)
@@ -406,24 +405,18 @@ void sun4v_data_access_exception(struct pt_regs *regs, unsigned long addr, unsig
         * kerbel by HV as data access exception with fault type set to
         * HV_FAULT_TYPE_INV_ASI.
         */
-       info.si_errno = 0;
-       info.si_addr = (void __user *) addr;
-       info.si_trapno = 0;
        switch (type) {
        case HV_FAULT_TYPE_INV_ASI:
-               info.si_signo = SIGILL;
-               info.si_code = ILL_ILLADR;
-               force_sig_info(SIGILL, &info, current);
+               force_sig_fault(SIGILL, ILL_ILLADR, (void __user *)addr, 0,
+                               current);
                break;
        case HV_FAULT_TYPE_MCD_DIS:
-               info.si_signo = SIGSEGV;
-               info.si_code = SEGV_ACCADI;
-               force_sig_info(SIGSEGV, &info, current);
+               force_sig_fault(SIGSEGV, SEGV_ACCADI, (void __user *)addr, 0,
+                               current);
                break;
        default:
-               info.si_signo = SIGSEGV;
-               info.si_code = SEGV_MAPERR;
-               force_sig_info(SIGSEGV, &info, current);
+               force_sig_fault(SIGSEGV, SEGV_MAPERR, (void __user *)addr, 0,
+                               current);
                break;
        }
 }
@@ -2073,8 +2066,6 @@ static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
  */
 void do_mcd_err(struct pt_regs *regs, struct sun4v_error_entry ent)
 {
-       siginfo_t info;
-
        if (notify_die(DIE_TRAP, "MCD error", regs, 0, 0x34,
                       SIGSEGV) == NOTIFY_STOP)
                return;
@@ -2110,12 +2101,8 @@ void do_mcd_err(struct pt_regs *regs, struct sun4v_error_entry ent)
        /* Send SIGSEGV to the userspace process with the right signal
         * code
         */
-       info.si_signo = SIGSEGV;
-       info.si_errno = 0;
-       info.si_code = SEGV_ADIDERR;
-       info.si_addr = (void __user *)ent.err_raddr;
-       info.si_trapno = 0;
-       force_sig_info(SIGSEGV, &info, current);
+       force_sig_fault(SIGSEGV, SEGV_ADIDERR, (void __user *)ent.err_raddr,
+                       0, current);
 }
 
 /* We run with %pil set to PIL_NORMAL_MAX and PSTATE_IE enabled in %pstate.
@@ -2748,8 +2735,6 @@ void sun4v_do_mna(struct pt_regs *regs, unsigned long addr, unsigned long type_c
 void sun4v_mem_corrupt_detect_precise(struct pt_regs *regs, unsigned long addr,
                                      unsigned long context)
 {
-       siginfo_t info;
-
        if (notify_die(DIE_TRAP, "memory corruption precise exception", regs,
                       0, 0x8, SIGSEGV) == NOTIFY_STOP)
                return;
@@ -2784,12 +2769,7 @@ void sun4v_mem_corrupt_detect_precise(struct pt_regs *regs, unsigned long addr,
                regs->tpc &= 0xffffffff;
                regs->tnpc &= 0xffffffff;
        }
-       info.si_signo = SIGSEGV;
-       info.si_code = SEGV_ADIPERR;
-       info.si_errno = 0;
-       info.si_addr = (void __user *) addr;
-       info.si_trapno = 0;
-       force_sig_info(SIGSEGV, &info, current);
+       force_sig_fault(SIGSEGV, SEGV_ADIPERR, (void __user *)addr, 0, current);
 }
 
 void do_privop(struct pt_regs *regs)