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authorAl Viro <viro@zeniv.linux.org.uk>2020-02-16 03:54:56 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2020-03-26 21:41:22 +0300
commit119cd59fcfbe70fb3fcab4e64cd232bcc3807585 (patch)
tree9b687382863d2425ba11121b14ed4e936079d4f7 /include/linux/signal.h
parent57d563c8292569f2849569853e846bf740df5032 (diff)
downloadlinux-119cd59fcfbe70fb3fcab4e64cd232bcc3807585.tar.xz
x86: get rid of put_user_try in __setup_rt_frame() (both 32bit and 64bit)
Straightforward, except for save_altstack_ex() stuck in those. Replace that thing with an analogue that would use unsafe_put_user() instead of put_user_ex() (called compat_save_altstack()) and be done with that. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/signal.h')
-rw-r--r--include/linux/signal.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 1a5f88316b08..05bacd2ab135 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -444,12 +444,12 @@ void signals_init(void);
int restore_altstack(const stack_t __user *);
int __save_altstack(stack_t __user *, unsigned long);
-#define save_altstack_ex(uss, sp) do { \
+#define unsafe_save_altstack(uss, sp, label) do { \
stack_t __user *__uss = uss; \
struct task_struct *t = current; \
- put_user_ex((void __user *)t->sas_ss_sp, &__uss->ss_sp); \
- put_user_ex(t->sas_ss_flags, &__uss->ss_flags); \
- put_user_ex(t->sas_ss_size, &__uss->ss_size); \
+ unsafe_put_user((void __user *)t->sas_ss_sp, &__uss->ss_sp, label); \
+ unsafe_put_user(t->sas_ss_flags, &__uss->ss_flags, label); \
+ unsafe_put_user(t->sas_ss_size, &__uss->ss_size, label); \
if (t->sas_ss_flags & SS_AUTODISARM) \
sas_ss_reset(t); \
} while (0);