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signal: Remove the signal number and task parameters from force_sig_info

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force_sig_info always delivers to the current task and the signal
parameter always matches info.si_signo.  So remove those parameters to
make it a simpler less error prone interface, and to make it clear
that none of the callers are doing anything clever.

This guarantees that force_sig_info will not grow any new buggy
callers that attempt to call force_sig on a non-current task, or that
pass an signal number that does not match info.si_signo.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman
2019-05-15 10:11:09 -05:00
parent 59c0e696a6
commit a89e9b8abf
4 changed files with 10 additions and 10 deletions
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2
include/linux/ptrace.h
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@@ -355,7 +355,7 @@ static inline void user_single_step_report(struct pt_regs *regs)
info.si_code = SI_USER;
info.si_pid = 0;
info.si_uid = 0;
force_sig_info(info.si_signo, &info, current);
force_sig_info(&info);
}
#endif