iwlwifi: provide RX page order

When the pages are to be used by front-end, it may need
to know the page order, provide it.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

2 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index fca5fec4ea6d..ce878b9dda8c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -274,6 +274,7 @@ struct iwl_rx_cmd_buffer {
         struct page *_page;
         int _offset;
         bool _page_stolen;
+        u32 _rx_page_order;
         unsigned int truesize;
 };
 
@@ -294,6 +295,11 @@ static inline struct page *rxb_steal_page(struct iwl_rx_cmd_buffer *r)
         return r->_page;
 }
 
+static inline void iwl_free_rxb(struct iwl_rx_cmd_buffer *r)
+{
+        __free_pages(r->_page, r->_rx_page_order);
+}
+
 #define MAX_NO_RECLAIM_CMDS     6
 
 #define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo))))
diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index b694d13fa308..a2f351779941 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -594,6 +594,7 @@ static void iwl_pcie_rx_handle_rb(struct iwl_trans *trans,
                 int index, cmd_index, err, len;
                 struct iwl_rx_cmd_buffer rxcb = {
                         ._offset = offset,
+                        ._rx_page_order = trans_pcie->rx_page_order,
                         ._page = rxb->page,
                         ._page_stolen = false,
                         .truesize = max_len,