struct channel_backend *chanb = &bufb->chan->backend;
const struct lib_ring_buffer_config *config = chanb->config;
size_t index;
- ssize_t pagecpy, orig_len;
+ ssize_t pagecpy;
struct lib_ring_buffer_backend_pages *rpages;
unsigned long sb_bindex, id;
- orig_len = len;
offset &= chanb->buf_size - 1;
index = (offset & (chanb->subbuf_size - 1)) >> PAGE_SHIFT;
if (unlikely(!len))