WARNING: line length of 82 exceeds 80 columns
#77: FILE: drivers/net/ethernet/mediatek/mtk_eth_soc.c:1192:
+				txd->txd2 = eth->phy_scratch_ring + phy_ring_addr;

WARNING: line length of 83 exceeds 80 columns
#128: FILE: drivers/net/ethernet/mediatek/mtk_eth_soc.c:1542:
+		next_idx = NEXT_DESP_IDX(txd_to_idx(ring, txd, soc->tx.desc_shift),

WARNING: line length of 83 exceeds 80 columns
#234: FILE: drivers/net/ethernet/mediatek/mtk_eth_soc.c:2499:
+		ring->dma = eth->sram_base + TX_DESC_OFS(eth, soc->tx.fq_dma_size);

WARNING: line length of 91 exceeds 80 columns
#235: FILE: drivers/net/ethernet/mediatek/mtk_eth_soc.c:2500:
+		ring->phys = eth->phy_scratch_ring + TX_DESC_OFS(eth, soc->tx.fq_dma_size);

WARNING: line length of 89 exceeds 80 columns
#238: FILE: drivers/net/ethernet/mediatek/mtk_eth_soc.c:2502:
+		ring->dma = dma_alloc_coherent(eth->dma_dev, TX_DESC_OFS(eth, ring_size),

WARNING: line length of 94 exceeds 80 columns
#266: FILE: drivers/net/ethernet/mediatek/mtk_eth_soc.c:2532:
+		ring->dma_pdma = dma_alloc_coherent(eth->dma_dev, TX_DESC_OFS(eth, ring_size),

WARNING: line length of 82 exceeds 80 columns
#275: FILE: drivers/net/ethernet/mediatek/mtk_eth_soc.c:2547:
+	ring->last_free_ptr = (u32)(ring->phys + TX_DESC_OFS(eth, ring_size - 1));

WARNING: line length of 90 exceeds 80 columns
#319: FILE: drivers/net/ethernet/mediatek/mtk_eth_soc.c:2676:
+		ring->dma = tx_ring->dma + TX_DESC_OFS(eth, tx_ring_size * (ring_no + 1));

WARNING: line length of 92 exceeds 80 columns
#320: FILE: drivers/net/ethernet/mediatek/mtk_eth_soc.c:2677:
+		ring->phys = tx_ring->phys + TX_DESC_OFS(eth, tx_ring_size * (ring_no + 1));

total: 0 errors, 9 warnings, 0 checks, 487 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit b8e2bcfb3f63 ("net: ethernet: mtk_eth_soc: optimize dma ring address/index calculation") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 9 warnings, 0 checks, 487 lines checked