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sparc64: Update signal delivery to use new helper functions

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Commit f8ec66014f ("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>
This commit is contained in:
Khalid Aziz 2018-02-21 10:15:53 -07:00 committed by David S. Miller
parent 74a0496748
commit b9fa03656b
1 changed files with 9 additions and 29 deletions
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38
arch/sparc/kernel/traps_64.c
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@ -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)