| Context |
Check |
Description |
| snowpatch_ozlabs/apply_patch |
warning
|
Failed to apply on branch powerpc/merge (58b9041431fcf9f3f87c8def87ca82dd54cf80dd)
|
| snowpatch_ozlabs/apply_patch |
warning
|
Failed to apply on branch powerpc/next (3cea11cd5e3b00d91caf0b4730194039b45c5891)
|
| snowpatch_ozlabs/apply_patch |
warning
|
Failed to apply on branch linus/master (4ef8451b332662d004df269d4cdeb7d9f31419b5)
|
| snowpatch_ozlabs/apply_patch |
warning
|
Failed to apply on branch powerpc/fixes (1344a232016dbb0492be81f8517c4bf8fc1c6610)
|
| snowpatch_ozlabs/apply_patch |
warning
|
Failed to apply on branch linux-next (cf7cd542d1b538f6e9e83490bc090dd773f4266d)
|
| snowpatch_ozlabs/apply_patch |
fail
|
Failed to apply to any branch
|
@@ -53,6 +53,33 @@ unsigned long copy_ckfpr_from_user(struct task_struct *task, void __user *from);
&buf[i], label);\
} while (0)
+#define unsafe_copy_fpr_from_user(task, from, label) do { \
+ struct task_struct *__t = task; \
+ u64 __user *__f = (u64 __user *)from; \
+ u64 buf[ELF_NFPREG]; \
+ int i; \
+ \
+ unsafe_copy_from_user(buf, __f, ELF_NFPREG * sizeof(double), \
+ label); \
+ for (i = 0; i < ELF_NFPREG - 1; i++) \
+ __t->thread.TS_FPR(i) = buf[i]; \
+ __t->thread.fp_state.fpscr = buf[i]; \
+} while (0)
+
+#define unsafe_copy_vsx_from_user(task, from, label) do { \
+ struct task_struct *__t = task; \
+ u64 __user *__f = (u64 __user *)from; \
+ u64 buf[ELF_NVSRHALFREG]; \
+ int i; \
+ \
+ unsafe_copy_from_user(buf, __f, \
+ ELF_NVSRHALFREG * sizeof(double), \
+ label); \
+ for (i = 0; i < ELF_NVSRHALFREG ; i++) \
+ __t->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = buf[i]; \
+} while (0)
+
+
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
#define unsafe_copy_ckfpr_to_user(to, task, label) do { \
struct task_struct *__t = task; \
@@ -80,6 +107,10 @@ unsigned long copy_ckfpr_from_user(struct task_struct *task, void __user *from);
unsafe_copy_to_user(to, (task)->thread.fp_state.fpr, \
ELF_NFPREG * sizeof(double), label)
+#define unsafe_copy_fpr_from_user(task, from, label) \
+ unsafe_copy_from_user((task)->thread.fp_state.fpr, from \
+ ELF_NFPREG * sizeof(double), label)
+
static inline unsigned long
copy_fpr_to_user(void __user *to, struct task_struct *task)
{
@@ -115,6 +146,8 @@ copy_ckfpr_from_user(struct task_struct *task, void __user *from)
#else
#define unsafe_copy_fpr_to_user(to, task, label) do { } while (0)
+#define unsafe_copy_fpr_from_user(task, from, label) do { } while (0)
+
static inline unsigned long
copy_fpr_to_user(void __user *to, struct task_struct *task)
{
Reuse the "safe" implementation from signal.c except for calling unsafe_copy_from_user() to copy into a local buffer. Unlike the unsafe_copy_{vsx,fpr}_to_user() functions the "copy from" functions cannot use unsafe_get_user() directly to bypass the local buffer since doing so significantly reduces signal handling performance. Signed-off-by: Christopher M. Riedl <cmr@codefail.de> --- arch/powerpc/kernel/signal.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+)