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signal: Remove the task parameter from force_sig_fault

Browse source 
As synchronous exceptions really only make sense against the current
task (otherwise how are you synchronous) remove the task parameter
from from force_sig_fault to make it explicit that is what is going
on.

The two known exceptions that deliver a synchronous exception to a
stopped ptraced task have already been changed to
force_sig_fault_to_task.

The callers have been changed with the following emacs regular expression
(with obvious variations on the architectures that take more arguments)
to avoid typos:

force_sig_fault[(]\([^,]+\)[,]\([^,]+\)[,]\([^,]+\)[,]\W+current[)]
->
force_sig_fault(\1,\2,\3)

Signed-off-by: "Eric W. Biederman" <[email protected]>
This commit is contained in:
Eric W. Biederman 2019-05-23 11:04:24 -05:00
commit 2e1661d267
67 changed files with 137 additions and 151 deletions
Download patch file Download diff file Expand all files Collapse all files

8
arch/openrisc/kernel/traps.c
View file

@ -249,7 +249,7 @@ void __init trap_init(void)
asmlinkage void do_trap(struct pt_regs *regs, unsigned long address)
{
force_sig_fault(SIGTRAP, TRAP_TRACE, (void __user *)address, current);
force_sig_fault(SIGTRAP, TRAP_TRACE, (void __user *)address);
regs->pc += 4;
}
@ -258,7 +258,7 @@ asmlinkage void do_unaligned_access(struct pt_regs *regs, unsigned long address)
{
if (user_mode(regs)) {
/* Send a SIGBUS */
force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *)address, current);
force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *)address);
} else {
printk("KERNEL: Unaligned Access 0x%.8lx\n", address);
show_registers(regs);
@ -271,7 +271,7 @@ asmlinkage void do_bus_fault(struct pt_regs *regs, unsigned long address)
{
if (user_mode(regs)) {
/* Send a SIGBUS */
force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address, current);
force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address);
} else { /* Kernel mode */
printk("KERNEL: Bus error (SIGBUS) 0x%.8lx\n", address);
show_registers(regs);
@ -466,7 +466,7 @@ asmlinkage void do_illegal_instruction(struct pt_regs *regs,
if (user_mode(regs)) {
/* Send a SIGILL */
force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)address, current);
force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)address);
} else { /* Kernel mode */
printk("KERNEL: Illegal instruction (SIGILL) 0x%.8lx\n",
address);

4
arch/openrisc/mm/fault.c
View file

@ -213,7 +213,7 @@ bad_area_nosemaphore:
/* User mode accesses just cause a SIGSEGV */
if (user_mode(regs)) {
force_sig_fault(SIGSEGV, si_code, (void __user *)address, current);
force_sig_fault(SIGSEGV, si_code, (void __user *)address);
return;
}
@ -278,7 +278,7 @@ do_sigbus:
* Send a sigbus, regardless of whether we were in kernel
* or user mode.
*/
force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address, current);
force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address);
/* Kernel mode? Handle exceptions or die */
if (!user_mode(regs))