Re: [PATCH v6 2/2] PCI/PM: disable PTM on all devices

From: kernel test robot
Date: Wed Jun 08 2022 - 14:17:39 EST


Hi Rajvi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on helgaas-pci/next]
[also build test ERROR on linus/master v5.19-rc1 next-20220608]
[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]

url: https://github.com/intel-lab-lkp/linux/commits/Rajvi-Jingar/PCI-PM-refactor-pci_pm_suspend_noirq/20220608-092412
base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
config: i386-randconfig-a001 (https://download.01.org/0day-ci/archive/20220609/202206090155.uxFOFYd0-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://github.com/intel-lab-lkp/linux/commit/1bf4649d5fa01aa9d1ce606461791344adfaa2ab
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Rajvi-Jingar/PCI-PM-refactor-pci_pm_suspend_noirq/20220608-092412
git checkout 1bf4649d5fa01aa9d1ce606461791344adfaa2ab
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

drivers/pci/pci.c: In function 'pci_save_state':
>> drivers/pci/pci.c:1677:18: error: 'struct pci_dev' has no member named 'ptm_enabled'; did you mean 'ats_enabled'?
1677 | if (dev->ptm_enabled)
| ^~~~~~~~~~~
| ats_enabled


vim +1677 drivers/pci/pci.c

1644
1645 /**
1646 * pci_save_state - save the PCI configuration space of a device before
1647 * suspending
1648 * @dev: PCI device that we're dealing with
1649 */
1650 int pci_save_state(struct pci_dev *dev)
1651 {
1652 int i;
1653 /* XXX: 100% dword access ok here? */
1654 for (i = 0; i < 16; i++) {
1655 pci_read_config_dword(dev, i * 4, &dev->saved_config_space[i]);
1656 pci_dbg(dev, "saving config space at offset %#x (reading %#x)\n",
1657 i * 4, dev->saved_config_space[i]);
1658 }
1659 dev->state_saved = true;
1660
1661 i = pci_save_pcie_state(dev);
1662 if (i != 0)
1663 return i;
1664
1665 i = pci_save_pcix_state(dev);
1666 if (i != 0)
1667 return i;
1668
1669 pci_save_ltr_state(dev);
1670 pci_save_dpc_state(dev);
1671 pci_save_aer_state(dev);
1672 /*
1673 * PCI PM core disables PTM during suspend and saves PTM state before
1674 * that to be able to restore the ptm state restored later. So PCI core
1675 * needs this check to avoid double save.
1676 */
> 1677 if (dev->ptm_enabled)
1678 pci_save_ptm_state(dev);
1679 return pci_save_vc_state(dev);
1680 }
1681 EXPORT_SYMBOL(pci_save_state);
1682

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