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signal: Remove task parameter from force_sig

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All of the remaining callers pass current into force_sig so
remove the task parameter to make this obvious and to make
misuse more difficult in the future.

This also makes it clear force_sig passes current into force_sig_info.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman
2019-05-23 10:17:27 -05:00
parent cb44c9a0ab
commit 3cf5d076fb
76 changed files with 160 additions and 166 deletions
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36
arch/mips/kernel/traps.c
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@@ -482,7 +482,7 @@ asmlinkage void do_be(struct pt_regs *regs)
goto out;
die_if_kernel("Oops", regs);
force_sig(SIGBUS, current);
force_sig(SIGBUS);
out:
exception_exit(prev_state);
@@ -765,7 +765,7 @@ int process_fpemu_return(int sig, void __user *fault_addr, unsigned long fcr31)
return 1;
default:
force_sig(sig, current);
force_sig(sig);
return 1;
}
}
@@ -947,7 +947,7 @@ void do_trap_or_bp(struct pt_regs *regs, unsigned int code, int si_code,
break;
case BRK_BUG:
die_if_kernel("Kernel bug detected", regs);
force_sig(SIGTRAP, current);
force_sig(SIGTRAP);
break;
case BRK_MEMU:
/*
@@ -962,7 +962,7 @@ void do_trap_or_bp(struct pt_regs *regs, unsigned int code, int si_code,
return;
die_if_kernel("Math emu break/trap", regs);
force_sig(SIGTRAP, current);
force_sig(SIGTRAP);
break;
default:
scnprintf(b, sizeof(b), "%s instruction in kernel code", str);
@@ -970,7 +970,7 @@ void do_trap_or_bp(struct pt_regs *regs, unsigned int code, int si_code,
if (si_code) {
force_sig_fault(SIGTRAP, si_code, NULL, current);
} else {
force_sig(SIGTRAP, current);
force_sig(SIGTRAP);
}
}
}
@@ -1063,7 +1063,7 @@ out:
return;
out_sigsegv:
force_sig(SIGSEGV, current);
force_sig(SIGSEGV);
goto out;
}
@@ -1105,7 +1105,7 @@ out:
return;
out_sigsegv:
force_sig(SIGSEGV, current);
force_sig(SIGSEGV);
goto out;
}
@@ -1191,7 +1191,7 @@ no_r2_instr:
if (unlikely(status > 0)) {
regs->cp0_epc = old_epc; /* Undo skip-over. */
regs->regs[31] = old31;
force_sig(status, current);
force_sig(status);
}
out:
@@ -1220,7 +1220,7 @@ static int default_cu2_call(struct notifier_block *nfb, unsigned long action,
die_if_kernel("COP2: Unhandled kernel unaligned access or invalid "
"instruction", regs);
force_sig(SIGILL, current);
force_sig(SIGILL);
return NOTIFY_OK;
}
@@ -1383,7 +1383,7 @@ asmlinkage void do_cpu(struct pt_regs *regs)
if (unlikely(status > 0)) {
regs->cp0_epc = old_epc; /* Undo skip-over. */
regs->regs[31] = old31;
force_sig(status, current);
force_sig(status);
}
break;
@@ -1403,7 +1403,7 @@ asmlinkage void do_cpu(struct pt_regs *regs)
* emulator too.
*/
if (raw_cpu_has_fpu || !cpu_has_mips_4_5_64_r2_r6) {
force_sig(SIGILL, current);
force_sig(SIGILL);
break;
}
/* Fall through. */
@@ -1437,7 +1437,7 @@ asmlinkage void do_cpu(struct pt_regs *regs)
#else /* CONFIG_MIPS_FP_SUPPORT */
case 1:
case 3:
force_sig(SIGILL, current);
force_sig(SIGILL);
break;
#endif /* CONFIG_MIPS_FP_SUPPORT */
@@ -1464,7 +1464,7 @@ asmlinkage void do_msa_fpe(struct pt_regs *regs, unsigned int msacsr)
local_irq_enable();
die_if_kernel("do_msa_fpe invoked from kernel context!", regs);
force_sig(SIGFPE, current);
force_sig(SIGFPE);
out:
exception_exit(prev_state);
}
@@ -1477,7 +1477,7 @@ asmlinkage void do_msa(struct pt_regs *regs)
prev_state = exception_enter();
if (!cpu_has_msa || test_thread_flag(TIF_32BIT_FPREGS)) {
force_sig(SIGILL, current);
force_sig(SIGILL);
goto out;
}
@@ -1485,7 +1485,7 @@ asmlinkage void do_msa(struct pt_regs *regs)
err = enable_restore_fp_context(1);
if (err)
force_sig(SIGILL, current);
force_sig(SIGILL);
out:
exception_exit(prev_state);
}
@@ -1495,7 +1495,7 @@ asmlinkage void do_mdmx(struct pt_regs *regs)
enum ctx_state prev_state;
prev_state = exception_enter();
force_sig(SIGILL, current);
force_sig(SIGILL);
exception_exit(prev_state);
}
@@ -1592,7 +1592,7 @@ asmlinkage void do_mt(struct pt_regs *regs)
}
die_if_kernel("MIPS MT Thread exception in kernel", regs);
force_sig(SIGILL, current);
force_sig(SIGILL);
}
@@ -1601,7 +1601,7 @@ asmlinkage void do_dsp(struct pt_regs *regs)
if (cpu_has_dsp)
panic("Unexpected DSP exception");
force_sig(SIGILL, current);
force_sig(SIGILL);
}
asmlinkage void do_reserved(struct pt_regs *regs)