drivers/pci/controller/pci-xgene.c:511:33: sparse: sparse: incorrect type in argument 2 (different address spaces)

From: kernel test robot
Date: Mon May 17 2021 - 06:36:10 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d07f6ca923ea0927a1024dfccafc5b53b61cfecc
commit: 6e5a1fff9096ecd259dedcbbdc812aa90986a40e PCI: Avoid building empty drivers
date: 10 weeks ago
config: mips-randconfig-s032-20210517 (attached as .config)
compiler: mipsel-linux-gcc (GCC) 9.3.0
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: v0.6.3-341-g8af24329-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6e5a1fff9096ecd259dedcbbdc812aa90986a40e
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 6e5a1fff9096ecd259dedcbbdc812aa90986a40e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=mips

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

sparse warnings: (new ones prefixed by >>)
command-line: note: in included file:
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined
builtin:0:0: sparse: this was the original definition
drivers/pci/controller/pci-xgene.c:510:26: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *bar_addr @@ got void [noderef] __iomem * @@
drivers/pci/controller/pci-xgene.c:510:26: sparse: expected void *bar_addr
drivers/pci/controller/pci-xgene.c:510:26: sparse: got void [noderef] __iomem *
>> drivers/pci/controller/pci-xgene.c:511:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got void *bar_addr @@
drivers/pci/controller/pci-xgene.c:511:33: sparse: expected void volatile [noderef] __iomem *mem
drivers/pci/controller/pci-xgene.c:511:33: sparse: got void *bar_addr
>> drivers/pci/controller/pci-xgene.c:512:58: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got void * @@
drivers/pci/controller/pci-xgene.c:512:58: sparse: expected void volatile [noderef] __iomem *mem
drivers/pci/controller/pci-xgene.c:512:58: sparse: got void *

vim +511 drivers/pci/controller/pci-xgene.c

5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 480
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 481 static void xgene_pcie_setup_ib_reg(struct xgene_pcie_port *port,
6dce5aa59e0bf2 drivers/pci/controller/pci-xgene.c Rob Herring 2019-10-28 482 struct resource_entry *entry,
6dce5aa59e0bf2 drivers/pci/controller/pci-xgene.c Rob Herring 2019-10-28 483 u8 *ib_reg_mask)
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 484 {
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 485 void __iomem *cfg_base = port->cfg_base;
d963ab22ad32da drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 486 struct device *dev = port->dev;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 487 void *bar_addr;
4ecf6b0f83523f drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 488 u32 pim_reg;
6dce5aa59e0bf2 drivers/pci/controller/pci-xgene.c Rob Herring 2019-10-28 489 u64 cpu_addr = entry->res->start;
6dce5aa59e0bf2 drivers/pci/controller/pci-xgene.c Rob Herring 2019-10-28 490 u64 pci_addr = cpu_addr - entry->offset;
6dce5aa59e0bf2 drivers/pci/controller/pci-xgene.c Rob Herring 2019-10-28 491 u64 size = resource_size(entry->res);
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 492 u64 mask = ~(size - 1) | EN_REG;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 493 u32 flags = PCI_BASE_ADDRESS_MEM_TYPE_64;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 494 u32 bar_low;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 495 int region;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 496
6dce5aa59e0bf2 drivers/pci/controller/pci-xgene.c Rob Herring 2019-10-28 497 region = xgene_pcie_select_ib_reg(ib_reg_mask, size);
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 498 if (region < 0) {
d963ab22ad32da drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 499 dev_warn(dev, "invalid pcie dma-range config\n");
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 500 return;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 501 }
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 502
6dce5aa59e0bf2 drivers/pci/controller/pci-xgene.c Rob Herring 2019-10-28 503 if (entry->res->flags & IORESOURCE_PREFETCH)
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 504 flags |= PCI_BASE_ADDRESS_MEM_PREFETCH;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 505
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 506 bar_low = pcie_bar_low_val((u32)cpu_addr, flags);
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 507 switch (region) {
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 508 case 0:
4ecf6b0f83523f drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 509 xgene_pcie_set_ib_mask(port, BRIDGE_CFG_4, flags, size);
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 510 bar_addr = cfg_base + PCI_BASE_ADDRESS_0;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 @511 writel(bar_low, bar_addr);
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 @512 writel(upper_32_bits(cpu_addr), bar_addr + 0x4);
4ecf6b0f83523f drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 513 pim_reg = PIM1_1L;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 514 break;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 515 case 1:
8e93c5132ca2e5 drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 516 xgene_pcie_writel(port, IBAR2, bar_low);
8e93c5132ca2e5 drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 517 xgene_pcie_writel(port, IR2MSK, lower_32_bits(mask));
4ecf6b0f83523f drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 518 pim_reg = PIM2_1L;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 519 break;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 520 case 2:
8e93c5132ca2e5 drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 521 xgene_pcie_writel(port, IBAR3L, bar_low);
8e93c5132ca2e5 drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 522 xgene_pcie_writel(port, IBAR3L + 0x4, upper_32_bits(cpu_addr));
8e93c5132ca2e5 drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 523 xgene_pcie_writel(port, IR3MSKL, lower_32_bits(mask));
8e93c5132ca2e5 drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 524 xgene_pcie_writel(port, IR3MSKL + 0x4, upper_32_bits(mask));
4ecf6b0f83523f drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 525 pim_reg = PIM3_1L;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 526 break;
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 527 }
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 528
4ecf6b0f83523f drivers/pci/host/pci-xgene.c Bjorn Helgaas 2016-10-06 529 xgene_pcie_setup_pims(port, pim_reg, pci_addr, ~(size - 1));
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 530 }
5f6b6ccdbe1cdf drivers/pci/host/pci-xgene.c Tanmay Inamdar 2014-10-01 531

:::::: The code at line 511 was first introduced by commit
:::::: 5f6b6ccdbe1cdfa5aa4347ec5412509b8995db27 PCI: xgene: Add APM X-Gene PCIe driver

:::::: TO: Tanmay Inamdar <tinamdar@xxxxxxx>
:::::: CC: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip

Next message: Greg KH: "Re: [PATCH] uacce: use sysfs_emit instead of sprintf"
Previous message: syzbot: "[syzbot] WARNING in ctx_sched_out"
Next in thread: Bjorn Helgaas: "Re: drivers/pci/controller/pci-xgene.c:511:33: sparse: sparse: incorrect type in argument 2 (different address spaces)"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]