From: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
To: linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
Shawn Jin <shawn.jin@asteralabs.com>,
linuxppc-dev@lists.ozlabs.org,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
linux-kernel@vger.kernel.org
Cc: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Subject: [PATCH 01/11] PCI: Log all resource claims
Date: Wed, 29 Apr 2026 15:26:07 +0300 [thread overview]
Message-ID: <20260429122617.7324-2-ilpo.jarvinen@linux.intel.com> (raw)
In-Reply-To: <20260429122617.7324-1-ilpo.jarvinen@linux.intel.com>
There are two ways to graft resource into resource tree in PCI,
pci_assign_resource() and pci_claim_resource(). Only the former logs
the action which complicated troubleshooting the cases where resources
are assigned by pci_claim_resource() which mostly assigns the addresses
inherited from the FW.
Add logging into pci_claim_resource() to make troubleshooting easier.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/pci/setup-res.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index fbc05cda96ee..0d203325562b 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -167,6 +167,8 @@ int pci_claim_resource(struct pci_dev *dev, int resource)
return -EBUSY;
}
+ pci_dbg(dev, "%s %pR: claiming\n", res_name, res);
+
return 0;
}
EXPORT_SYMBOL(pci_claim_resource);
--
2.39.5
next prev parent reply other threads:[~2026-04-29 12:26 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-29 12:26 [PATCH 00/11] PCI: pci_resource_alignment() improvement + cleanups Ilpo Järvinen
2026-04-29 12:26 ` Ilpo Järvinen [this message]
2026-04-29 12:26 ` [PATCH 02/11] PCI: Rename added to add_list Ilpo Järvinen
2026-04-29 12:26 ` [PATCH 03/11] PCI: Consolidate add_list (aka realloc_head) empty sanity checks Ilpo Järvinen
2026-04-29 12:26 ` [PATCH 04/11] PCI: Remove const removal cast Ilpo Järvinen
2026-04-29 12:26 ` [PATCH 05/11] resource: Make resource_alignment() input const resource Ilpo Järvinen
2026-04-29 12:26 ` [PATCH 06/11] powerpc/pseries: Make pseries_get_iov_fw_value() & pnv_iov_get() pci_dev const Ilpo Järvinen
2026-04-29 12:26 ` [PATCH 07/11] PCI: Make pci_sriov_resource_alignment() " Ilpo Järvinen
2026-04-29 12:26 ` [PATCH 08/11] PCI: Convert pci_resource_alignment() input parameters to const Ilpo Järvinen
2026-04-29 12:26 ` [PATCH 09/11] PCI: Move pci_resource_alignment() to setup-res.c file Ilpo Järvinen
2026-04-29 12:26 ` [PATCH 10/11] PCI: Lower bound bridge window alignment Ilpo Järvinen
2026-04-29 12:26 ` [PATCH 11/11] PCI: Return valid alignment for assigned resources Ilpo Järvinen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260429122617.7324-2-ilpo.jarvinen@linux.intel.com \
--to=ilpo.jarvinen@linux.intel.com \
--cc=bhelgaas@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=maddy@linux.ibm.com \
--cc=mpe@ellerman.id.au \
--cc=npiggin@gmail.com \
--cc=shawn.jin@asteralabs.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox