MIPS: ptrace: Move away from secure_computing_strict
MIPS now has the infrastructure for dynamic seccomp-bpf filtering Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6400/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -82,7 +82,7 @@ static inline long regs_return_value(struct pt_regs *regs)
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#define instruction_pointer(regs) ((regs)->cp0_epc)
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#define profile_pc(regs) instruction_pointer(regs)
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extern asmlinkage void syscall_trace_enter(struct pt_regs *regs);
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extern asmlinkage long syscall_trace_enter(struct pt_regs *regs);
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extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
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extern void die(const char *, struct pt_regs *) __noreturn;
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@ -662,13 +662,14 @@ long arch_ptrace(struct task_struct *child, long request,
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* Notification of system call entry/exit
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* - triggered by current->work.syscall_trace
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*/
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asmlinkage void syscall_trace_enter(struct pt_regs *regs)
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asmlinkage long syscall_trace_enter(struct pt_regs *regs)
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{
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long syscall = regs->regs[2];
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long ret = 0;
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user_exit();
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/* do the secure computing check first */
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secure_computing_strict(regs->regs[2]);
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if (secure_computing(syscall) == -1)
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return -1;
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if (test_thread_flag(TIF_SYSCALL_TRACE) &&
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tracehook_report_syscall_entry(regs))
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@ -678,9 +679,10 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
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trace_sys_enter(regs, regs->regs[2]);
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audit_syscall_entry(syscall_get_arch(current, regs),
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regs->regs[2],
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syscall,
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regs->regs[4], regs->regs[5],
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regs->regs[6], regs->regs[7]);
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return syscall;
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}
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/*
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