[PATCH] kernel:signal.c Fix coding style errors and warnings.
From: Ionut Alexa
Date: Fri Nov 14 2014 - 10:48:13 EST
Fix various coding style errors and warnings as:
- space before tabs
- exiting a function from different points (else after return
..)
Signed-off-by: Ionut Alexa <ionut.m.alexa@xxxxxxxxx>
---
kernel/signal.c | 104 +++++++++++++++++++++++++++++--------------------------
1 file changed, 55 insertions(+), 49 deletions(-)
diff --git a/kernel/signal.c b/kernel/signal.c
index 8f0876f..226b41a 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -109,25 +109,28 @@ static inline int has_pending_signals(sigset_t *signal, sigset_t *blocked)
switch (_NSIG_WORDS) {
default:
for (i = _NSIG_WORDS, ready = 0; --i >= 0 ;)
- ready |= signal->sig[i] &~ blocked->sig[i];
+ ready |= signal->sig[i] & ~blocked->sig[i];
break;
- case 4: ready = signal->sig[3] &~ blocked->sig[3];
- ready |= signal->sig[2] &~ blocked->sig[2];
- ready |= signal->sig[1] &~ blocked->sig[1];
- ready |= signal->sig[0] &~ blocked->sig[0];
+ case 4:
+ ready = signal->sig[3] & ~blocked->sig[3];
+ ready |= signal->sig[2] & ~blocked->sig[2];
+ ready |= signal->sig[1] & ~blocked->sig[1];
+ ready |= signal->sig[0] & ~blocked->sig[0];
break;
- case 2: ready = signal->sig[1] &~ blocked->sig[1];
- ready |= signal->sig[0] &~ blocked->sig[0];
+ case 2:
+ ready = signal->sig[1] & ~blocked->sig[1];
+ ready |= signal->sig[0] & ~blocked->sig[0];
break;
- case 1: ready = signal->sig[0] &~ blocked->sig[0];
+ case 1:
+ ready = signal->sig[0] & ~blocked->sig[0];
}
return ready != 0;
}
-#define PENDING(p,b) has_pending_signals(&(p)->signal, (b))
+#define PENDING(p, b) has_pending_signals(&(p)->signal, (b))
static int recalc_sigpending_tsk(struct task_struct *t)
{
@@ -180,7 +183,7 @@ int next_signal(struct sigpending *pending, sigset_t *mask)
* Handle the first word specially: it contains the
* synchronous signals that need to be dequeued first.
*/
- x = *s &~ *m;
+ x = *s & ~*m;
if (x) {
if (x & SYNCHRONOUS_MASK)
x &= SYNCHRONOUS_MASK;
@@ -191,7 +194,7 @@ int next_signal(struct sigpending *pending, sigset_t *mask)
switch (_NSIG_WORDS) {
default:
for (i = 1; i < _NSIG_WORDS; ++i) {
- x = *++s &~ *++m;
+ x = *++s & ~*++m;
if (!x)
continue;
sig = ffz(~x) + i*_NSIG_BPW + 1;
@@ -200,7 +203,7 @@ int next_signal(struct sigpending *pending, sigset_t *mask)
break;
case 2:
- x = s[1] &~ m[1];
+ x = s[1] & ~m[1];
if (!x)
break;
sig = ffz(~x) + _NSIG_BPW + 1;
@@ -224,8 +227,8 @@ static inline void print_dropped_signal(int sig)
if (!__ratelimit(&ratelimit_state))
return;
- printk(KERN_INFO "%s/%d: reached RLIMIT_SIGPENDING, dropped signal %d\n",
- current->comm, current->pid, sig);
+ pr_info("%s/%d: reached RLIMIT_SIGPENDING, dropped signal %d\n",
+ current->comm, current->pid, sig);
}
/**
@@ -936,7 +939,7 @@ static void complete_signal(int sig, struct task_struct *p, int group)
* There is just one thread and it does not need to be woken.
* It will dequeue unblocked signals before it runs again.
*/
- return;
+ goto exit_func;
else {
/*
* Otherwise try to find a suitable thread.
@@ -950,7 +953,7 @@ static void complete_signal(int sig, struct task_struct *p, int group)
* Any eligible threads will see
* the signal in the queue soon.
*/
- return;
+ goto exit_func;
}
signal->curr_target = t;
}
@@ -982,7 +985,7 @@ static void complete_signal(int sig, struct task_struct *p, int group)
sigaddset(&t->pending.signal, SIGKILL);
signal_wake_up(t, 1);
} while_each_thread(p, t);
- return;
+ goto exit_func;
}
}
@@ -991,6 +994,7 @@ static void complete_signal(int sig, struct task_struct *p, int group)
* Tell the chosen thread to wake up and dequeue it.
*/
signal_wake_up(t, sig == SIGKILL);
+exit_func:
return;
}
@@ -1140,10 +1144,10 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
static void print_fatal_signal(int signr)
{
struct pt_regs *regs = signal_pt_regs();
- printk(KERN_INFO "potentially unexpected fatal signal %d.\n", signr);
+ pr_info("potentially unexpected fatal signal %d.\n", signr);
#if defined(__i386__) && !defined(__arch_um__)
- printk(KERN_INFO "code at %08lx: ", regs->ip);
+ pr_info("code at %08lx: ", regs->ip);
{
int i;
for (i = 0; i < 16; i++) {
@@ -1151,10 +1155,10 @@ static void print_fatal_signal(int signr)
if (get_user(insn, (unsigned char *)(regs->ip + i)))
break;
- printk(KERN_CONT "%02x ", insn);
+ pr_cont("%02x ", insn);
}
}
- printk(KERN_CONT "\n");
+ pr_cont("\n");
#endif
preempt_disable();
show_regs(regs);
@@ -1163,7 +1167,7 @@ static void print_fatal_signal(int signr)
static int __init setup_print_fatal_signals(char *str)
{
- get_option (&str, &print_fatal_signals);
+ get_option(&str, &print_fatal_signals);
return 1;
}
@@ -1431,7 +1435,7 @@ static int kill_something_info(int sig, struct siginfo *info, pid_t pid)
pid ? find_vpid(-pid) : task_pgrp(current));
} else {
int retval = 0, count = 0;
- struct task_struct * p;
+ struct task_struct *p;
for_each_process(p) {
if (task_pid_vnr(p) > 1 &&
@@ -1622,8 +1626,8 @@ bool do_notify_parent(struct task_struct *tsk, int sig)
BUG_ON(sig == -1);
- /* do_notify_parent_cldstop should have been called instead. */
- BUG_ON(task_is_stopped_or_traced(tsk));
+ /* do_notify_parent_cldstop should have been called instead. */
+ BUG_ON(task_is_stopped_or_traced(tsk));
BUG_ON(!tsk->ptrace &&
(tsk->group_leader != tsk || !thread_group_empty(tsk)));
@@ -1745,20 +1749,20 @@ static void do_notify_parent_cldstop(struct task_struct *tsk,
info.si_utime = cputime_to_clock_t(utime);
info.si_stime = cputime_to_clock_t(stime);
- info.si_code = why;
- switch (why) {
- case CLD_CONTINUED:
- info.si_status = SIGCONT;
- break;
- case CLD_STOPPED:
- info.si_status = tsk->signal->group_exit_code & 0x7f;
- break;
- case CLD_TRAPPED:
- info.si_status = tsk->exit_code & 0x7f;
- break;
- default:
- BUG();
- }
+ info.si_code = why;
+ switch (why) {
+ case CLD_CONTINUED:
+ info.si_status = SIGCONT;
+ break;
+ case CLD_STOPPED:
+ info.si_status = tsk->signal->group_exit_code & 0x7f;
+ break;
+ case CLD_TRAPPED:
+ info.si_status = tsk->exit_code & 0x7f;
+ break;
+ default:
+ BUG();
+ }
sighand = parent->sighand;
spin_lock_irqsave(&sighand->siglock, flags);
@@ -1943,7 +1947,7 @@ static void ptrace_do_notify(int signr, int exit_code, int why)
{
siginfo_t info;
- memset(&info, 0, sizeof info);
+ memset(&info, 0, sizeof(info));
info.si_signo = signr;
info.si_code = exit_code;
info.si_pid = task_pid_vnr(current);
@@ -2357,7 +2361,7 @@ relock:
}
/**
- * signal_delivered -
+ * signal_delivered -
* @ksig: kernel signal struct
* @stepping: nonzero if debugger single-step or block-step in use
*
@@ -2704,7 +2708,7 @@ int copy_siginfo_to_user(siginfo_t __user *to, const siginfo_t *from)
{
int err;
- if (!access_ok (VERIFY_WRITE, to, sizeof(siginfo_t)))
+ if (!access_ok(VERIFY_WRITE, to, sizeof(siginfo_t)))
return -EFAULT;
if (from->si_code < 0)
return __copy_to_user(to, from, sizeof(siginfo_t))
@@ -3131,7 +3135,8 @@ int do_sigaction(int sig, struct k_sigaction *act, struct k_sigaction *oact)
}
static int
-do_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, unsigned long sp)
+do_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+ unsigned long sp)
{
stack_t oss;
int error;
@@ -3195,7 +3200,8 @@ do_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, unsigned long s
out:
return error;
}
-SYSCALL_DEFINE2(sigaltstack,const stack_t __user *,uss, stack_t __user *,uoss)
+SYSCALL_DEFINE2(sigaltstack, const stack_t __user *, uss,
+ stack_t __user *, uoss)
{
return do_sigaltstack(uss, uoss, current_user_stack_pointer());
}
@@ -3274,7 +3280,7 @@ int __compat_save_altstack(compat_stack_t __user *uss, unsigned long sp)
*/
SYSCALL_DEFINE1(sigpending, old_sigset_t __user *, set)
{
- return sys_rt_sigpending((sigset_t __user *)set, sizeof(old_sigset_t));
+ return sys_rt_sigpending((sigset_t __user *)set, sizeof(old_sigset_t));
}
#endif
@@ -3399,7 +3405,7 @@ COMPAT_SYSCALL_DEFINE4(rt_sigaction, int, sig,
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
sigset_to_compat(&mask, &old_ka.sa.sa_mask);
- ret = put_user(ptr_to_compat(old_ka.sa.sa_handler),
+ ret = put_user(ptr_to_compat(old_ka.sa.sa_handler),
&oact->sa_handler);
ret |= copy_to_user(&oact->sa_mask, &mask, sizeof(mask));
ret |= put_user(old_ka.sa.sa_flags, &oact->sa_flags);
@@ -3416,7 +3422,7 @@ COMPAT_SYSCALL_DEFINE4(rt_sigaction, int, sig,
#ifdef CONFIG_OLD_SIGACTION
SYSCALL_DEFINE3(sigaction, int, sig,
const struct old_sigaction __user *, act,
- struct old_sigaction __user *, oact)
+ struct old_sigaction __user *, oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
@@ -3452,7 +3458,7 @@ SYSCALL_DEFINE3(sigaction, int, sig,
#ifdef CONFIG_COMPAT_OLD_SIGACTION
COMPAT_SYSCALL_DEFINE3(sigaction, int, sig,
const struct compat_old_sigaction __user *, act,
- struct compat_old_sigaction __user *, oact)
+ struct compat_old_sigaction __user *, oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
@@ -3575,7 +3581,7 @@ SYSCALL_DEFINE2(rt_sigsuspend, sigset_t __user *, unewset, size_t, sigsetsize)
return -EFAULT;
return sigsuspend(&newset);
}
-
+
#ifdef CONFIG_COMPAT
COMPAT_SYSCALL_DEFINE2(rt_sigsuspend, compat_sigset_t __user *, unewset, compat_size_t, sigsetsize)
{
--
1.7.10.4
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