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Message-ID: <20190112181355.GA31454@infradead.org>
Date: Sat, 12 Jan 2019 19:13:55 +0100
From: Christoph Hellwig <hch@...radead.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: [GIT PULL] remove dma_zalloc_coherent
Lets see if this works better as a pull request than the
plain patches:
We've always had a weird situation around dma_zalloc_coherent. To
safely support mapping the allocations to userspace major architectures
like x86 and arm have always zeroed allocations from dma_alloc_coherent,
but a couple other architectures were missing that zeroing either always
or in corner cases. Then later we grew anothe dma_zalloc_coherent
interface to explicitly request zeroing, but that just added __GFP_ZERO
to the allocation flags, which for some allocators that didn't end
up using the page allocator ended up being a no-op and still not
zeroing the allocations.
So for this merge window I fixed up all remaining architectures to zero
the memory in dma_alloc_coherent, and made dma_zalloc_coherent a no-op
wrapper around dma_alloc_coherent, which fixes all of the above issues.
dma_zalloc_coherent is now pointless and can go away, and Luis helped
me writing a cocchinelle script and patch series to kill it, which I
think we should apply now just after -rc1 to finally settle these
issue.
The following changes since commit 3bd6e94bec122a951d462c239b47954cf5f36e33:
arch: restore generic-y += shmparam.h for some architectures (2019-01-06 18:16:11 -0800)
are available in the Git repository at:
git://git.infradead.org/users/hch/dma-mapping.git tags/remove-dma_zalloc_coherent-5.0
for you to fetch changes up to dfd32cad146e3624970eee9329e99d2c6ef751b3:
dma-mapping: remove dma_zalloc_coherent() (2019-01-08 07:58:49 -0500)
----------------------------------------------------------------
remove dma_zalloc_coherent
We've always had a weird situation around dma_zalloc_coherent. To
safely support mapping the allocations to userspace major architectures
like x86 and arm have always zeroed allocations from dma_alloc_coherent,
but a couple other architectures were missing that zeroing either always
or in corner cases. Then later we grew anothe dma_zalloc_coherent
interface to explicitly request zeroing, but that just added __GFP_ZERO
to the allocation flags, which for some allocators that didn't end
up using the page allocator ended up being a no-op and still not
zeroing the allocations.
So for this merge window I fixed up all remaining architectures to zero
the memory in dma_alloc_coherent, and made dma_zalloc_coherent a no-op
wrapper around dma_alloc_coherent, which fixes all of the above issues.
dma_zalloc_coherent is now pointless and can go away, and Luis helped
me writing a cocchinelle script and patch series to kill it, which I
think we should apply now just after -rc1 to finally settle these
issue.
----------------------------------------------------------------
Luis Chamberlain (3):
cross-tree: phase out dma_zalloc_coherent()
cross-tree: phase out dma_zalloc_coherent() on headers
dma-mapping: remove dma_zalloc_coherent()
arch/mips/lantiq/xway/dma.c | 6 +-
arch/powerpc/platforms/pasemi/dma_lib.c | 2 +-
arch/powerpc/sysdev/fsl_rmu.c | 7 ++-
drivers/ata/sata_fsl.c | 4 +-
drivers/atm/he.c | 39 ++++++-------
drivers/atm/idt77252.c | 16 ++---
drivers/block/skd_main.c | 4 +-
drivers/crypto/amcc/crypto4xx_core.c | 6 +-
drivers/crypto/cavium/cpt/cptpf_main.c | 4 +-
drivers/crypto/cavium/cpt/cptvf_main.c | 7 ++-
drivers/crypto/cavium/nitrox/nitrox_lib.c | 6 +-
drivers/crypto/ccp/ccp-dev-v5.c | 6 +-
drivers/crypto/hisilicon/sec/sec_algs.c | 4 +-
drivers/crypto/hisilicon/sec/sec_drv.c | 15 ++---
drivers/crypto/ixp4xx_crypto.c | 6 +-
drivers/crypto/mediatek/mtk-platform.c | 16 ++---
drivers/crypto/qat/qat_common/adf_admin.c | 12 ++--
drivers/crypto/qat/qat_common/qat_algs.c | 24 ++++----
drivers/crypto/qat/qat_common/qat_asym_algs.c | 68 +++++++++++-----------
drivers/dma/imx-sdma.c | 8 +--
drivers/dma/mediatek/mtk-hsdma.c | 4 +-
drivers/dma/mxs-dma.c | 6 +-
drivers/dma/xgene-dma.c | 4 +-
drivers/dma/xilinx/xilinx_dma.c | 14 ++---
drivers/dma/xilinx/zynqmp_dma.c | 6 +-
drivers/gpu/drm/drm_pci.c | 5 +-
drivers/infiniband/hw/bnxt_re/qplib_rcfw.c | 4 +-
drivers/infiniband/hw/bnxt_re/qplib_res.c | 8 +--
drivers/infiniband/hw/cxgb3/cxio_hal.c | 6 +-
drivers/infiniband/hw/cxgb4/qp.c | 5 +-
drivers/infiniband/hw/hfi1/init.c | 29 ++++-----
drivers/infiniband/hw/hfi1/pio.c | 9 ++-
drivers/infiniband/hw/hfi1/sdma.c | 27 +++------
drivers/infiniband/hw/hns/hns_roce_alloc.c | 11 ++--
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 10 ++--
drivers/infiniband/hw/i40iw/i40iw_utils.c | 4 +-
drivers/infiniband/hw/mthca/mthca_memfree.c | 5 +-
drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 14 ++---
drivers/infiniband/hw/ocrdma/ocrdma_stats.c | 4 +-
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 6 +-
drivers/infiniband/hw/qedr/verbs.c | 4 +-
drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c | 4 +-
drivers/input/touchscreen/raspberrypi-ts.c | 4 +-
drivers/iommu/mtk_iommu_v1.c | 5 +-
drivers/media/pci/intel/ipu3/ipu3-cio2.c | 4 +-
.../media/platform/mtk-vcodec/mtk_vcodec_util.c | 2 +-
drivers/misc/genwqe/card_utils.c | 4 +-
drivers/mmc/host/sdhci.c | 5 +-
drivers/net/ethernet/aeroflex/greth.c | 12 ++--
drivers/net/ethernet/alacritech/slicoss.c | 12 ++--
drivers/net/ethernet/amazon/ena/ena_com.c | 61 +++++++++----------
drivers/net/ethernet/apm/xgene-v2/main.c | 8 +--
drivers/net/ethernet/atheros/alx/main.c | 7 +--
drivers/net/ethernet/atheros/atl1c/atl1c_main.c | 4 +-
drivers/net/ethernet/broadcom/bcm63xx_enet.c | 8 +--
drivers/net/ethernet/broadcom/bcmsysport.c | 4 +-
drivers/net/ethernet/broadcom/bgmac.c | 12 ++--
drivers/net/ethernet/broadcom/bnx2.c | 4 +-
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 2 +-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 2 +-
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 16 ++---
drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 4 +-
drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c | 4 +-
drivers/net/ethernet/broadcom/tg3.c | 22 +++----
drivers/net/ethernet/cavium/thunder/nicvf_queues.c | 2 +-
drivers/net/ethernet/chelsio/cxgb3/sge.c | 2 +-
drivers/net/ethernet/chelsio/cxgb4/sge.c | 2 +-
drivers/net/ethernet/chelsio/cxgb4vf/sge.c | 2 +-
drivers/net/ethernet/emulex/benet/be_cmds.c | 68 +++++++++++-----------
drivers/net/ethernet/emulex/benet/be_ethtool.c | 18 +++---
drivers/net/ethernet/emulex/benet/be_main.c | 18 +++---
drivers/net/ethernet/faraday/ftgmac100.c | 14 ++---
drivers/net/ethernet/faraday/ftmac100.c | 7 +--
drivers/net/ethernet/hisilicon/hix5hd2_gmac.c | 4 +-
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 5 +-
.../net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.c | 5 +-
.../ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c | 5 +-
.../net/ethernet/huawei/hinic/hinic_hw_api_cmd.c | 16 ++---
drivers/net/ethernet/huawei/hinic/hinic_hw_eqs.c | 8 +--
drivers/net/ethernet/huawei/hinic/hinic_hw_io.c | 6 +-
drivers/net/ethernet/huawei/hinic/hinic_hw_qp.c | 10 ++--
drivers/net/ethernet/huawei/hinic/hinic_hw_wq.c | 8 +--
drivers/net/ethernet/ibm/emac/mal.c | 4 +-
drivers/net/ethernet/intel/e1000/e1000_ethtool.c | 8 +--
drivers/net/ethernet/intel/e1000e/netdev.c | 4 +-
drivers/net/ethernet/intel/i40e/i40e_main.c | 4 +-
drivers/net/ethernet/intel/ixgb/ixgb_main.c | 8 +--
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 6 +-
drivers/net/ethernet/marvell/octeontx2/af/common.h | 2 +-
drivers/net/ethernet/marvell/pxa168_eth.c | 18 +++---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 18 +++---
drivers/net/ethernet/mellanox/mlx4/alloc.c | 8 +--
drivers/net/ethernet/mellanox/mlx5/core/alloc.c | 4 +-
drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 10 ++--
drivers/net/ethernet/myricom/myri10ge/myri10ge.c | 6 +-
.../net/ethernet/netronome/nfp/nfp_net_common.c | 12 ++--
drivers/net/ethernet/ni/nixge.c | 12 ++--
.../net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 12 ++--
drivers/net/ethernet/pasemi/pasemi_mac.c | 6 +-
drivers/net/ethernet/qlogic/qed/qed_cxt.c | 16 ++---
drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c | 28 ++++-----
drivers/net/ethernet/qualcomm/emac/emac-mac.c | 2 +-
drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c | 12 ++--
drivers/net/ethernet/sfc/falcon/nic.c | 4 +-
drivers/net/ethernet/sfc/nic.c | 4 +-
drivers/net/ethernet/sgi/meth.c | 4 +-
drivers/net/ethernet/socionext/netsec.c | 4 +-
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 40 +++++--------
drivers/net/ethernet/tundra/tsi108_eth.c | 8 +--
drivers/net/ethernet/xilinx/ll_temac_main.c | 12 ++--
drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 12 ++--
drivers/net/fddi/defxx.c | 6 +-
drivers/net/fddi/skfp/skfddi.c | 8 +--
drivers/net/vmxnet3/vmxnet3_drv.c | 8 +--
drivers/net/wan/fsl_ucc_hdlc.c | 7 +--
drivers/net/wireless/ath/ath10k/ce.c | 7 +--
drivers/net/wireless/ath/ath10k/mac.c | 8 +--
drivers/net/wireless/ath/ath10k/pci.c | 3 +-
drivers/net/wireless/ath/ath10k/wmi.c | 2 +-
drivers/net/wireless/ath/wcn36xx/dxe.c | 17 +++---
drivers/net/wireless/ath/wil6210/txrx_edma.c | 8 +--
drivers/net/wireless/broadcom/b43/dma.c | 6 +-
drivers/net/wireless/broadcom/b43legacy/dma.c | 6 +-
.../wireless/broadcom/brcm80211/brcmfmac/pcie.c | 16 ++---
drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 39 +++++--------
drivers/net/wireless/ralink/rt2x00/rt2x00mmio.c | 6 +-
drivers/ntb/hw/mscc/ntb_hw_switchtec.c | 8 +--
drivers/nvme/host/pci.c | 8 +--
drivers/pci/controller/pcie-iproc-msi.c | 6 +-
drivers/pci/switch/switchtec.c | 8 +--
drivers/rapidio/devices/tsi721.c | 22 +++----
drivers/rapidio/devices/tsi721_dma.c | 8 +--
drivers/s390/net/ism_drv.c | 15 +++--
drivers/scsi/3w-sas.c | 5 +-
drivers/scsi/a100u2w.c | 8 +--
drivers/scsi/arcmsr/arcmsr_hba.c | 18 ++++--
drivers/scsi/be2iscsi/be_main.c | 4 +-
drivers/scsi/be2iscsi/be_mgmt.c | 11 ++--
drivers/scsi/bfa/bfad_bsg.c | 6 +-
drivers/scsi/bnx2fc/bnx2fc_hwi.c | 49 ++++++++--------
drivers/scsi/bnx2fc/bnx2fc_tgt.c | 44 +++++++-------
drivers/scsi/bnx2i/bnx2i_hwi.c | 8 +--
drivers/scsi/csiostor/csio_wr.c | 4 +-
drivers/scsi/lpfc/lpfc_bsg.c | 4 +-
drivers/scsi/lpfc/lpfc_init.c | 14 ++---
drivers/scsi/lpfc/lpfc_mbox.c | 6 +-
drivers/scsi/lpfc/lpfc_sli.c | 15 +++--
drivers/scsi/megaraid/megaraid_mbox.c | 15 ++---
drivers/scsi/megaraid/megaraid_sas_base.c | 26 ++++-----
drivers/scsi/megaraid/megaraid_sas_fusion.c | 5 +-
drivers/scsi/mesh.c | 5 +-
drivers/scsi/mvumi.c | 9 +--
drivers/scsi/pm8001/pm8001_sas.c | 4 +-
drivers/scsi/qedf/qedf_main.c | 29 +++++----
drivers/scsi/qedi/qedi_main.c | 39 ++++++-------
drivers/scsi/qla2xxx/qla_attr.c | 4 +-
drivers/scsi/qla2xxx/qla_bsg.c | 4 +-
drivers/scsi/qla2xxx/qla_gs.c | 14 +++--
drivers/scsi/qla2xxx/qla_init.c | 8 +--
drivers/scsi/qla4xxx/ql4_init.c | 4 +-
drivers/scsi/qla4xxx/ql4_mbx.c | 18 +++---
drivers/scsi/qla4xxx/ql4_nx.c | 4 +-
drivers/scsi/qla4xxx/ql4_os.c | 10 ++--
drivers/scsi/smartpqi/smartpqi_init.c | 32 +++++-----
drivers/soc/fsl/qbman/dpaa_sys.c | 2 +-
drivers/spi/spi-pic32-sqi.c | 6 +-
drivers/staging/mt7621-eth/mtk_eth_soc.c | 3 +-
.../interface/vchiq_arm/vchiq_2835_arm.c | 6 +-
drivers/staging/vt6655/device_main.c | 19 ++----
drivers/usb/gadget/udc/bdc/bdc_core.c | 13 ++---
drivers/usb/host/uhci-hcd.c | 6 +-
drivers/usb/host/xhci-mem.c | 8 +--
drivers/video/fbdev/da8xx-fb.c | 6 +-
include/linux/dma-mapping.h | 9 ---
include/linux/pci-dma-compat.h | 2 +-
scripts/coccinelle/api/alloc/alloc_cast.cocci | 8 +--
scripts/coccinelle/api/alloc/zalloc-simple.cocci | 11 +---
sound/aoa/soundbus/i2sbus/core.c | 4 +-
sound/sparc/dbri.c | 4 +-
179 files changed, 923 insertions(+), 975 deletions(-)
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