diff options
author | Eric W. Biederman <ebiederm@xmission.com> | 2019-05-15 18:11:09 +0300 |
---|---|---|
committer | Eric W. Biederman <ebiederm@xmission.com> | 2019-05-29 17:31:44 +0300 |
commit | a89e9b8abf82725e4ac96100e07c8104dbe8a240 (patch) | |
tree | a25fe1216ab1148b3991afc738c237716e1440c3 /kernel/signal.c | |
parent | 59c0e696a6c0fe6a8d718a43aecd72347db6a7f0 (diff) |
signal: Remove the signal number and task parameters from force_sig_info
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>
Diffstat (limited to 'kernel/signal.c')
-rw-r--r-- | kernel/signal.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 0984158cd41a..ff6944e4964e 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1325,9 +1325,9 @@ force_sig_info_to_task(struct kernel_siginfo *info, struct task_struct *t) return ret; } -int force_sig_info(int sig, struct kernel_siginfo *info, struct task_struct *t) +int force_sig_info(struct kernel_siginfo *info) { - return force_sig_info_to_task(info, t); + return force_sig_info_to_task(info, current); } /* @@ -1619,7 +1619,7 @@ void force_sig(int sig) info.si_code = SI_KERNEL; info.si_pid = 0; info.si_uid = 0; - force_sig_info(info.si_signo, &info, current); + force_sig_info(&info); } EXPORT_SYMBOL(force_sig); @@ -1708,7 +1708,7 @@ int force_sig_mceerr(int code, void __user *addr, short lsb) info.si_code = code; info.si_addr = addr; info.si_addr_lsb = lsb; - return force_sig_info(info.si_signo, &info, current); + return force_sig_info(&info); } int send_sig_mceerr(int code, void __user *addr, short lsb, struct task_struct *t) @@ -1737,7 +1737,7 @@ int force_sig_bnderr(void __user *addr, void __user *lower, void __user *upper) info.si_addr = addr; info.si_lower = lower; info.si_upper = upper; - return force_sig_info(info.si_signo, &info, current); + return force_sig_info(&info); } #ifdef SEGV_PKUERR @@ -1751,7 +1751,7 @@ int force_sig_pkuerr(void __user *addr, u32 pkey) info.si_code = SEGV_PKUERR; info.si_addr = addr; info.si_pkey = pkey; - return force_sig_info(info.si_signo, &info, current); + return force_sig_info(&info); } #endif @@ -1767,7 +1767,7 @@ int force_sig_ptrace_errno_trap(int errno, void __user *addr) info.si_errno = errno; info.si_code = TRAP_HWBKPT; info.si_addr = addr; - return force_sig_info(info.si_signo, &info, current); + return force_sig_info(&info); } int kill_pgrp(struct pid *pid, int sig, int priv) |