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From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 8 Apr 2022 10:59:45 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc/wed: fix sparse endian warnings
Descriptor fields are little-endian
Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -144,16 +144,17 @@ mtk_wed_buffer_alloc(struct mtk_wed_devi
for (s = 0; s < MTK_WED_BUF_PER_PAGE; s++) {
u32 txd_size;
+ u32 ctrl;
txd_size = dev->wlan.init_buf(buf, buf_phys, token++);
- desc->buf0 = buf_phys;
- desc->buf1 = buf_phys + txd_size;
- desc->ctrl = FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN0,
- txd_size) |
- FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN1,
- MTK_WED_BUF_SIZE - txd_size) |
- MTK_WDMA_DESC_CTRL_LAST_SEG1;
+ desc->buf0 = cpu_to_le32(buf_phys);
+ desc->buf1 = cpu_to_le32(buf_phys + txd_size);
+ ctrl = FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN0, txd_size) |
+ FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN1,
+ MTK_WED_BUF_SIZE - txd_size) |
+ MTK_WDMA_DESC_CTRL_LAST_SEG1;
+ desc->ctrl = cpu_to_le32(ctrl);
desc->info = 0;
desc++;
@@ -184,12 +185,14 @@ mtk_wed_free_buffer(struct mtk_wed_devic
for (i = 0, page_idx = 0; i < dev->buf_ring.size; i += MTK_WED_BUF_PER_PAGE) {
void *page = page_list[page_idx++];
+ dma_addr_t buf_addr;
if (!page)
break;
- dma_unmap_page(dev->hw->dev, desc[i].buf0,
- PAGE_SIZE, DMA_BIDIRECTIONAL);
+ buf_addr = le32_to_cpu(desc[i].buf0);
+ dma_unmap_page(dev->hw->dev, buf_addr, PAGE_SIZE,
+ DMA_BIDIRECTIONAL);
__free_page(page);
}
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