From: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com>
To: Bjorn Helgaas <helgaas@kernel.org>, linux-pci@vger.kernel.org
Cc: "Jon Pan-Doh" <pandoh@google.com>,
"Karolina Stolarek" <karolina.stolarek@oracle.com>,
"Weinan Liu" <wnliu@google.com>,
"Martin Petersen" <martin.petersen@oracle.com>,
"Ben Fuller" <ben.fuller@oracle.com>,
"Drew Walton" <drewwalton@microsoft.com>,
"Anil Agrawal" <anilagrawal@meta.com>,
"Tony Luck" <tony.luck@intel.com>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"Lukas Wunner" <lukas@wunner.de>,
"Jonathan Cameron" <Jonathan.Cameron@huawei.com>,
"Sargun Dhillon" <sargun@meta.com>,
"Paul E . McKenney" <paulmck@kernel.org>,
"Mahesh J Salgaonkar" <mahesh@linux.ibm.com>,
"Oliver O'Halloran" <oohall@gmail.com>,
"Kai-Heng Feng" <kaihengf@nvidia.com>,
"Keith Busch" <kbusch@kernel.org>,
"Robert Richter" <rrichter@amd.com>,
"Terry Bowman" <terry.bowman@amd.com>,
"Shiju Jose" <shiju.jose@huawei.com>,
"Dave Jiang" <dave.jiang@intel.com>,
linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
"Bjorn Helgaas" <bhelgaas@google.com>
Subject: Re: [PATCH v8 17/20] PCI/AER: Simplify add_error_device()
Date: Thu, 22 May 2025 16:57:22 -0700 [thread overview]
Message-ID: <2c79c6b5-db40-4e54-b058-a95c56f735fb@linux.intel.com> (raw)
In-Reply-To: <20250522232339.1525671-18-helgaas@kernel.org>
On 5/22/25 4:21 PM, Bjorn Helgaas wrote:
> From: Bjorn Helgaas <bhelgaas@google.com>
>
> Return -ENOSPC error early so the usual path through add_error_device() is
> the straightline code.
>
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> ---
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
> drivers/pci/pcie/aer.c | 15 +++++++++------
> 1 file changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
> index 237741e66d28..24f0f5c55256 100644
> --- a/drivers/pci/pcie/aer.c
> +++ b/drivers/pci/pcie/aer.c
> @@ -816,12 +816,15 @@ EXPORT_SYMBOL_NS_GPL(pci_print_aer, "CXL");
> */
> static int add_error_device(struct aer_err_info *e_info, struct pci_dev *dev)
> {
> - if (e_info->error_dev_num < AER_MAX_MULTI_ERR_DEVICES) {
> - e_info->dev[e_info->error_dev_num] = pci_dev_get(dev);
> - e_info->error_dev_num++;
> - return 0;
> - }
> - return -ENOSPC;
> + int i = e_info->error_dev_num;
> +
> + if (i >= AER_MAX_MULTI_ERR_DEVICES)
> + return -ENOSPC;
> +
> + e_info->dev[i] = pci_dev_get(dev);
> + e_info->error_dev_num++;
> +
> + return 0;
> }
>
> /**
--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer
next prev parent reply other threads:[~2025-05-22 23:57 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-22 23:21 [PATCH v8 00/20] Rate limit AER logs Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 01/20] PCI/DPC: Initialize aer_err_info before using it Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 02/20] PCI/DPC: Log Error Source ID only when valid Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 03/20] PCI/AER: Factor COR/UNCOR error handling out from aer_isr_one_error() Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 04/20] PCI/AER: Consolidate Error Source ID logging in aer_isr_one_error_type() Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 05/20] PCI/AER: Extract bus/dev/fn in aer_print_port_info() with PCI_BUS_NUM(), etc Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 06/20] PCI/AER: Rename aer_print_port_info() to aer_print_source() Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 07/20] PCI/AER: Move aer_print_source() earlier in file Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 08/20] PCI/AER: Initialize aer_err_info before using it Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 09/20] PCI/AER: Simplify pci_print_aer() Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 10/20] PCI/AER: Update statistics before ratelimiting Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 11/20] PCI/AER: Trace error event " Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 12/20] PCI/AER: Check log level once and remember it Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 13/20] PCI/ERR: Add printk level to pcie_print_tlp_log() Bjorn Helgaas
2025-05-22 23:44 ` Sathyanarayanan Kuppuswamy
2025-05-23 9:56 ` Ilpo Järvinen
2025-05-28 6:38 ` Lukas Wunner
2025-05-28 10:00 ` Ilpo Järvinen
2025-05-22 23:21 ` [PATCH v8 14/20] PCI/AER: Reduce pci_print_aer() correctable error level to KERN_WARNING Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 15/20] PCI/AER: Rename struct aer_stats to aer_info Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 16/20] PCI/AER: Convert aer_get_device_error_info(), aer_print_error() to index Bjorn Helgaas
2025-05-22 23:58 ` Sathyanarayanan Kuppuswamy
2025-05-23 11:13 ` Ilpo Järvinen
2025-05-23 16:12 ` Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 17/20] PCI/AER: Simplify add_error_device() Bjorn Helgaas
2025-05-22 23:57 ` Sathyanarayanan Kuppuswamy [this message]
2025-05-23 11:14 ` Ilpo Järvinen
2025-05-22 23:21 ` [PATCH v8 18/20] PCI/AER: Ratelimit correctable and non-fatal error logging Bjorn Helgaas
2025-05-22 23:56 ` Sathyanarayanan Kuppuswamy
2025-05-23 16:06 ` Bjorn Helgaas
2025-08-01 13:16 ` Breno Leitao
2025-08-01 13:35 ` Breno Leitao
2025-05-22 23:21 ` [PATCH v8 19/20] PCI/AER: Add ratelimits to PCI AER Documentation Bjorn Helgaas
2025-05-22 23:21 ` [PATCH v8 20/20] PCI/AER: Add sysfs attributes for log ratelimits Bjorn Helgaas
2025-05-22 23:50 ` Sathyanarayanan Kuppuswamy
2025-05-23 16:21 ` [PATCH v8 00/20] Rate limit AER logs Bjorn Helgaas
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