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Message-ID: <202211012027.Hw1XyNNJ-lkp@intel.com>
Date: Tue, 1 Nov 2022 20:47:46 +0800
From: kernel test robot <lkp@...el.com>
To: Frank Li <Frank.Li@....com>
Cc: oe-kbuild-all@...ts.linux.dev, allenbh@...il.com,
bhelgaas@...gle.com, dave.jiang@...el.com, helgaas@...nel.org,
imx@...ts.linux.dev, jdmason@...zu.us, kw@...ux.com,
linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
lpieralisi@...nel.org, mani@...nel.org, ntb@...ts.linux.dev
Subject: Re: [PATCH v14 6/7] PCI: endpoint: pci-epf-vntb: fix sparse build
warning at epf_db
Hi Frank,
I love your patch! Perhaps something to improve:
[auto build test WARNING on jonmason-ntb/ntb-next]
[also build test WARNING on linus/master v6.1-rc3 next-20221101]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Frank-Li/pci-epf-vntb-clean-up/20221029-000245
base: https://github.com/jonmason/ntb ntb-next
patch link: https://lore.kernel.org/r/20221028155703.318928-7-Frank.Li%40nxp.com
patch subject: [PATCH v14 6/7] PCI: endpoint: pci-epf-vntb: fix sparse build warning at epf_db
config: ia64-randconfig-s043-20221031
compiler: ia64-linux-gcc (GCC) 12.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://github.com/intel-lab-lkp/linux/commit/04d4831353640b04e4f670c2b30e2ed12ef647d6
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Frank-Li/pci-epf-vntb-clean-up/20221029-000245
git checkout 04d4831353640b04e4f670c2b30e2ed12ef647d6
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/pci/controller/ drivers/pci/endpoint/functions/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
drivers/pci/endpoint/functions/pci-epf-vntb.c:552:17: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *mw_addr @@ got void * @@
drivers/pci/endpoint/functions/pci-epf-vntb.c:552:17: sparse: expected void [noderef] __iomem *mw_addr
drivers/pci/endpoint/functions/pci-epf-vntb.c:552:17: sparse: got void *
>> drivers/pci/endpoint/functions/pci-epf-vntb.c:558:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned int [usertype] *epf_db @@ got void [noderef] __iomem *mw_addr @@
drivers/pci/endpoint/functions/pci-epf-vntb.c:558:21: sparse: expected unsigned int [usertype] *epf_db
drivers/pci/endpoint/functions/pci-epf-vntb.c:558:21: sparse: got void [noderef] __iomem *mw_addr
drivers/pci/endpoint/functions/pci-epf-vntb.c:570:38: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void *addr @@ got void [noderef] __iomem *mw_addr @@
drivers/pci/endpoint/functions/pci-epf-vntb.c:570:38: sparse: expected void *addr
drivers/pci/endpoint/functions/pci-epf-vntb.c:570:38: sparse: got void [noderef] __iomem *mw_addr
drivers/pci/endpoint/functions/pci-epf-vntb.c:1123:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *base @@ got struct epf_ntb_ctrl *reg @@
drivers/pci/endpoint/functions/pci-epf-vntb.c:1123:33: sparse: expected void [noderef] __iomem *base
drivers/pci/endpoint/functions/pci-epf-vntb.c:1123:33: sparse: got struct epf_ntb_ctrl *reg
drivers/pci/endpoint/functions/pci-epf-vntb.c:1134:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *base @@ got struct epf_ntb_ctrl *reg @@
drivers/pci/endpoint/functions/pci-epf-vntb.c:1134:33: sparse: expected void [noderef] __iomem *base
drivers/pci/endpoint/functions/pci-epf-vntb.c:1134:33: sparse: got struct epf_ntb_ctrl *reg
drivers/pci/endpoint/functions/pci-epf-vntb.c:1145:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *base @@ got struct epf_ntb_ctrl *reg @@
drivers/pci/endpoint/functions/pci-epf-vntb.c:1145:33: sparse: expected void [noderef] __iomem *base
drivers/pci/endpoint/functions/pci-epf-vntb.c:1145:33: sparse: got struct epf_ntb_ctrl *reg
drivers/pci/endpoint/functions/pci-epf-vntb.c:1157:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *base @@ got struct epf_ntb_ctrl *reg @@
drivers/pci/endpoint/functions/pci-epf-vntb.c:1157:33: sparse: expected void [noderef] __iomem *base
drivers/pci/endpoint/functions/pci-epf-vntb.c:1157:33: sparse: got struct epf_ntb_ctrl *reg
vim +558 drivers/pci/endpoint/functions/pci-epf-vntb.c
e35f56bb03304a Frank Li 2022-02-22 519
e35f56bb03304a Frank Li 2022-02-22 520 /**
e35f56bb03304a Frank Li 2022-02-22 521 * epf_ntb_db_bar_init() - Configure Doorbell window BARs
693ca189095cb2 Frank Li 2022-10-28 522 * @ntb: NTB device that facilitates communication between HOST and VHOST
693ca189095cb2 Frank Li 2022-10-28 523 *
693ca189095cb2 Frank Li 2022-10-28 524 * Returns: Zero for success, or an error code in case of failure
e35f56bb03304a Frank Li 2022-02-22 525 */
e35f56bb03304a Frank Li 2022-02-22 526 static int epf_ntb_db_bar_init(struct epf_ntb *ntb)
e35f56bb03304a Frank Li 2022-02-22 527 {
e35f56bb03304a Frank Li 2022-02-22 528 const struct pci_epc_features *epc_features;
e35f56bb03304a Frank Li 2022-02-22 529 u32 align;
e35f56bb03304a Frank Li 2022-02-22 530 struct device *dev = &ntb->epf->dev;
e35f56bb03304a Frank Li 2022-02-22 531 int ret;
e35f56bb03304a Frank Li 2022-02-22 532 struct pci_epf_bar *epf_bar;
e35f56bb03304a Frank Li 2022-02-22 533 void __iomem *mw_addr;
e35f56bb03304a Frank Li 2022-02-22 534 enum pci_barno barno;
38cb263ec6bff3 Frank Li 2022-10-28 535 size_t size = sizeof(u32) * ntb->db_count;
e35f56bb03304a Frank Li 2022-02-22 536
e35f56bb03304a Frank Li 2022-02-22 537 epc_features = pci_epc_get_features(ntb->epf->epc,
e35f56bb03304a Frank Li 2022-02-22 538 ntb->epf->func_no,
e35f56bb03304a Frank Li 2022-02-22 539 ntb->epf->vfunc_no);
e35f56bb03304a Frank Li 2022-02-22 540 align = epc_features->align;
e35f56bb03304a Frank Li 2022-02-22 541
e35f56bb03304a Frank Li 2022-02-22 542 if (size < 128)
e35f56bb03304a Frank Li 2022-02-22 543 size = 128;
e35f56bb03304a Frank Li 2022-02-22 544
e35f56bb03304a Frank Li 2022-02-22 545 if (align)
e35f56bb03304a Frank Li 2022-02-22 546 size = ALIGN(size, align);
e35f56bb03304a Frank Li 2022-02-22 547 else
e35f56bb03304a Frank Li 2022-02-22 548 size = roundup_pow_of_two(size);
e35f56bb03304a Frank Li 2022-02-22 549
e35f56bb03304a Frank Li 2022-02-22 550 barno = ntb->epf_ntb_bar[BAR_DB];
e35f56bb03304a Frank Li 2022-02-22 551
e35f56bb03304a Frank Li 2022-02-22 552 mw_addr = pci_epf_alloc_space(ntb->epf, size, barno, align, 0);
e35f56bb03304a Frank Li 2022-02-22 553 if (!mw_addr) {
e35f56bb03304a Frank Li 2022-02-22 554 dev_err(dev, "Failed to allocate OB address\n");
e35f56bb03304a Frank Li 2022-02-22 555 return -ENOMEM;
e35f56bb03304a Frank Li 2022-02-22 556 }
e35f56bb03304a Frank Li 2022-02-22 557
e35f56bb03304a Frank Li 2022-02-22 @558 ntb->epf_db = mw_addr;
e35f56bb03304a Frank Li 2022-02-22 559
e35f56bb03304a Frank Li 2022-02-22 560 epf_bar = &ntb->epf->bar[barno];
e35f56bb03304a Frank Li 2022-02-22 561
e35f56bb03304a Frank Li 2022-02-22 562 ret = pci_epc_set_bar(ntb->epf->epc, ntb->epf->func_no, ntb->epf->vfunc_no, epf_bar);
e35f56bb03304a Frank Li 2022-02-22 563 if (ret) {
e35f56bb03304a Frank Li 2022-02-22 564 dev_err(dev, "Doorbell BAR set failed\n");
e35f56bb03304a Frank Li 2022-02-22 565 goto err_alloc_peer_mem;
e35f56bb03304a Frank Li 2022-02-22 566 }
e35f56bb03304a Frank Li 2022-02-22 567 return ret;
e35f56bb03304a Frank Li 2022-02-22 568
e35f56bb03304a Frank Li 2022-02-22 569 err_alloc_peer_mem:
20ecc991a4fdac Frank Li 2022-10-28 570 pci_epf_free_space(ntb->epf, mw_addr, barno, 0);
e35f56bb03304a Frank Li 2022-02-22 571 return -1;
e35f56bb03304a Frank Li 2022-02-22 572 }
e35f56bb03304a Frank Li 2022-02-22 573
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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