summaryrefslogtreecommitdiffstats
path: root/arch/riscv
diff options
context:
space:
mode:
authorEric W. Biederman <ebiederm@xmission.com>2019-02-05 19:10:48 -0600
committerEric W. Biederman <ebiederm@xmission.com>2019-05-29 09:31:42 -0500
commit6f25a967646aa3204d78eb03f72798169bb18607 (patch)
treeb5c8304287d257ad1b423a40b81c43166c884e43 /arch/riscv
parente1656829719f9e8005ae281984b5624fc2604ad3 (diff)
downloadblackbird-op-linux-6f25a967646aa3204d78eb03f72798169bb18607.tar.gz
blackbird-op-linux-6f25a967646aa3204d78eb03f72798169bb18607.zip
signal/riscv: Remove tsk parameter from do_trap
The do_trap function is always called with tsk == current. Make that obvious by removing the tsk parameter. This also makes it clear that do_trap calls force_sig_fault on the current task. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'arch/riscv')
-rw-r--r--arch/riscv/include/asm/bug.h2
-rw-r--r--arch/riscv/kernel/traps.c7
-rw-r--r--arch/riscv/mm/fault.c6
3 files changed, 8 insertions, 7 deletions
diff --git a/arch/riscv/include/asm/bug.h b/arch/riscv/include/asm/bug.h
index 52a1fbdeab3b..f1390914ba7a 100644
--- a/arch/riscv/include/asm/bug.h
+++ b/arch/riscv/include/asm/bug.h
@@ -94,7 +94,7 @@ struct task_struct;
extern void die(struct pt_regs *regs, const char *str);
extern void do_trap(struct pt_regs *regs, int signo, int code,
- unsigned long addr, struct task_struct *tsk);
+ unsigned long addr);
#endif /* !__ASSEMBLY__ */
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index 3d1a651dc54c..71445a928c1b 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -63,9 +63,10 @@ void die(struct pt_regs *regs, const char *str)
do_exit(SIGSEGV);
}
-void do_trap(struct pt_regs *regs, int signo, int code,
- unsigned long addr, struct task_struct *tsk)
+void do_trap(struct pt_regs *regs, int signo, int code, unsigned long addr)
{
+ struct task_struct *tsk = current;
+
if (show_unhandled_signals && unhandled_signal(tsk, signo)
&& printk_ratelimit()) {
pr_info("%s[%d]: unhandled signal %d code 0x%x at 0x" REG_FMT,
@@ -82,7 +83,7 @@ static void do_trap_error(struct pt_regs *regs, int signo, int code,
unsigned long addr, const char *str)
{
if (user_mode(regs)) {
- do_trap(regs, signo, code, addr, current);
+ do_trap(regs, signo, code, addr);
} else {
if (!fixup_exception(regs))
die(regs, str);
diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c
index cec8be9e2d6a..0a0081d9b766 100644
--- a/arch/riscv/mm/fault.c
+++ b/arch/riscv/mm/fault.c
@@ -181,7 +181,7 @@ bad_area:
up_read(&mm->mmap_sem);
/* User mode accesses just cause a SIGSEGV */
if (user_mode(regs)) {
- do_trap(regs, SIGSEGV, code, addr, tsk);
+ do_trap(regs, SIGSEGV, code, addr);
return;
}
@@ -217,7 +217,7 @@ do_sigbus:
/* Kernel mode? Handle exceptions or die */
if (!user_mode(regs))
goto no_context;
- do_trap(regs, SIGBUS, BUS_ADRERR, addr, tsk);
+ do_trap(regs, SIGBUS, BUS_ADRERR, addr);
return;
vmalloc_fault:
@@ -231,7 +231,7 @@ vmalloc_fault:
/* User mode accesses just cause a SIGSEGV */
if (user_mode(regs))
- return do_trap(regs, SIGSEGV, code, addr, tsk);
+ return do_trap(regs, SIGSEGV, code, addr);
/*
* Synchronize this task's top level page-table
OpenPOWER on IntegriCloud