usb: chipidea: udc: fix the ENDIAN issue
authorPeter Chen <peter.chen@nxp.com>
Wed, 10 Jun 2020 03:37:41 +0000 (11:37 +0800)
committerPeter Chen <peter.chen@nxp.com>
Wed, 10 Jun 2020 03:37:41 +0000 (11:37 +0800)
Fix the ENDIAN issue when assign dTD entry.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
drivers/usb/chipidea/udc.c

index db0cfde0cc3cb08eb7574a21f7cc0449b8a2d53d..ff9de91d98cafa8e6ea6e1603d78125a8f26082a 100644 (file)
@@ -473,9 +473,10 @@ static void ci_add_buffer_entry(struct td_node *node, struct scatterlist *s)
        int empty_td_slot_index = (CI_MAX_BUF_SIZE - node->td_remaining_size)
                        / CI_HDRC_PAGE_SIZE;
        int i;
+       u32 token;
 
-       node->ptr->token +=
-               cpu_to_le32(sg_dma_len(s) << __ffs(TD_TOTAL_BYTES));
+       token = le32_to_cpu(node->ptr->token) + (sg_dma_len(s) << __ffs(TD_TOTAL_BYTES));
+       node->ptr->token = cpu_to_le32(token);
 
        for (i = empty_td_slot_index; i < TD_PAGE_COUNT; i++) {
                u32 page = (u32) sg_dma_address(s) +