diff options
| author |   Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-08-18 17:19:22 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-12-04 01:01:12 +1100 |
| commit | c180cb305c9bba094657259487d563c8fbfb648b (patch) | |
| tree | eb449a3a7d20a84b365da93f19cae8e0aca137ec /arch/powerpc/kernel/signal.c | |
| parent | powerpc/signal: Remove get_clean_sp() (diff) | |
| download | wireguard-linux-c180cb305c9bba094657259487d563c8fbfb648b.tar.xz wireguard-linux-c180cb305c9bba094657259487d563c8fbfb648b.zip | |
powerpc/signal: Call get_tm_stackpointer() from get_sigframe()
Instead of calling get_tm_stackpointer() from the caller, call it
directly from get_sigframe(). This avoids a double call and
allows get_tm_stackpointer() to become static and be inlined
into get_sigframe() by GCC.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/abfdc105b8b28c4eb3ab9a26297d17f302b600ea.1597770847.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/signal.c')
| -rw-r--r-- | arch/powerpc/kernel/signal.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c index 1297b440ae78..c3f61dc0a589 100644 --- a/arch/powerpc/kernel/signal.c +++ b/arch/powerpc/kernel/signal.c @@ -144,10 +144,13 @@ int show_unhandled_signals = 1; /* * Allocate space for the signal frame */ -void __user *get_sigframe(struct ksignal *ksig, unsigned long sp, - size_t frame_size, int is_32) +static unsigned long get_tm_stackpointer(struct task_struct *tsk); + +void __user *get_sigframe(struct ksignal *ksig, struct task_struct *tsk, + size_t frame_size, int is_32) { unsigned long oldsp, newsp; + unsigned long sp = get_tm_stackpointer(tsk); /* Default to using normal stack */ if (is_32) @@ -300,7 +303,7 @@ void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags) user_enter(); } -unsigned long get_tm_stackpointer(struct task_struct *tsk) +static unsigned long get_tm_stackpointer(struct task_struct *tsk) { /* When in an active transaction that takes a signal, we need to be * careful with the stack. It's possible that the stack has moved back |