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Date: Sun, 18 Dec 2022 04:39:35 +0800
From: kernel test robot <lkp@...el.com>
To: Frank Li <frank.li@....com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Lorenzo Pieralisi <lpieralisi@...nel.org>
Subject: drivers/pci/endpoint/functions/pci-epf-vntb.c:574:38: sparse:
sparse: incorrect type in argument 2 (different address spaces)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f9ff5644bcc04221bae56f922122f2b7f5d24d62
commit: 0c031262d2ddfb938f9668d620d7ed674771646c PCI: endpoint: pci-epf-vntb: Fix call pci_epc_mem_free_addr() in error path
date: 3 weeks ago
config: powerpc-randconfig-s051-20221218
compiler: powerpc-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0c031262d2ddfb938f9668d620d7ed674771646c
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 0c031262d2ddfb938f9668d620d7ed674771646c
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash 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:556:17: 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:556:17: sparse: expected void [noderef] __iomem *mw_addr
drivers/pci/endpoint/functions/pci-epf-vntb.c:556:17: sparse: got void *
>> drivers/pci/endpoint/functions/pci-epf-vntb.c:574:38: 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:574:38: sparse: expected void *addr
drivers/pci/endpoint/functions/pci-epf-vntb.c:574:38: sparse: got void [noderef] __iomem *mw_addr
drivers/pci/endpoint/functions/pci-epf-vntb.c:590:41: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void *addr @@ got void [noderef] __iomem *epf_db @@
drivers/pci/endpoint/functions/pci-epf-vntb.c:590:41: sparse: expected void *addr
drivers/pci/endpoint/functions/pci-epf-vntb.c:590:41: sparse: got void [noderef] __iomem *epf_db
drivers/pci/endpoint/functions/pci-epf-vntb.c:1127:33: 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:1127:33: sparse: expected void [noderef] __iomem *base
drivers/pci/endpoint/functions/pci-epf-vntb.c:1127:33: sparse: got struct epf_ntb_ctrl *reg
drivers/pci/endpoint/functions/pci-epf-vntb.c:1138:33: 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:1138:33: sparse: expected void [noderef] __iomem *base
drivers/pci/endpoint/functions/pci-epf-vntb.c:1138:33: sparse: got struct epf_ntb_ctrl *reg
drivers/pci/endpoint/functions/pci-epf-vntb.c:1149:33: 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:1149:33: sparse: expected void [noderef] __iomem *base
drivers/pci/endpoint/functions/pci-epf-vntb.c:1149:33: sparse: got struct epf_ntb_ctrl *reg
drivers/pci/endpoint/functions/pci-epf-vntb.c:1161:33: 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:1161:33: sparse: expected void [noderef] __iomem *base
drivers/pci/endpoint/functions/pci-epf-vntb.c:1161:33: sparse: got struct epf_ntb_ctrl *reg
vim +574 drivers/pci/endpoint/functions/pci-epf-vntb.c
523
524 /**
525 * epf_ntb_db_bar_init() - Configure Doorbell window BARs
526 * @ntb: NTB device that facilitates communication between HOST and VHOST
527 *
528 * Returns: Zero for success, or an error code in case of failure
529 */
530 static int epf_ntb_db_bar_init(struct epf_ntb *ntb)
531 {
532 const struct pci_epc_features *epc_features;
533 u32 align;
534 struct device *dev = &ntb->epf->dev;
535 int ret;
536 struct pci_epf_bar *epf_bar;
537 void __iomem *mw_addr;
538 enum pci_barno barno;
539 size_t size = 4 * ntb->db_count;
540
541 epc_features = pci_epc_get_features(ntb->epf->epc,
542 ntb->epf->func_no,
543 ntb->epf->vfunc_no);
544 align = epc_features->align;
545
546 if (size < 128)
547 size = 128;
548
549 if (align)
550 size = ALIGN(size, align);
551 else
552 size = roundup_pow_of_two(size);
553
554 barno = ntb->epf_ntb_bar[BAR_DB];
555
556 mw_addr = pci_epf_alloc_space(ntb->epf, size, barno, align, 0);
557 if (!mw_addr) {
558 dev_err(dev, "Failed to allocate OB address\n");
559 return -ENOMEM;
560 }
561
562 ntb->epf_db = mw_addr;
563
564 epf_bar = &ntb->epf->bar[barno];
565
566 ret = pci_epc_set_bar(ntb->epf->epc, ntb->epf->func_no, ntb->epf->vfunc_no, epf_bar);
567 if (ret) {
568 dev_err(dev, "Doorbell BAR set failed\n");
569 goto err_alloc_peer_mem;
570 }
571 return ret;
572
573 err_alloc_peer_mem:
> 574 pci_epf_free_space(ntb->epf, mw_addr, barno, 0);
575 return -1;
576 }
577
--
0-DAY CI Kernel Test Service
https://01.org/lkp
View attachment "config" of type "text/plain" (151722 bytes)
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