| Message ID | 20190911051231.148032-12-dmitry.torokhov@gmail.com (mailing list archive) |
|---|---|
| State | Deferred, archived |
| Headers | show |
| Series | software node: add support for reference properties | expand |
diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index 83e2a706a86e..1aa6559993ec 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -277,6 +277,16 @@ static int property_entry_copy_data(struct property_entry *dst, dst->value = src->value; } + if (!dst->is_inline && dst->length <= sizeof(dst->value)) { + /* We have an opportunity to move the data inline */ + const void *tmp = dst->pointer; + + memcpy(&dst->value, tmp, dst->length); + dst->is_inline = true; + + kfree(tmp); + } + dst->length = src->length; dst->type = src->type; dst->name = kstrdup(src->name, GFP_KERNEL);
When copying/duplicating set of properties, move smaller properties that were stored separately directly inside property entry structures. We can move: - up to 8 bytes from U8 arrays - up to 4 words - up to 2 double words - one U64 value - one or 2 strings. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> --- drivers/base/swnode.c | 10 ++++++++++ 1 file changed, 10 insertions(+)