From: Kuppuswamy Sathyanarayanan Date: Wed, 18 Mar 2026 17:04:49 +0000 (-0700) Subject: PCI/DPC: Log AER error info for DPC/EDR uncorrectable errors X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=97970e7c694356e3386a10e3b936d61eafd06bce;p=thirdparty%2Flinux.git PCI/DPC: Log AER error info for DPC/EDR uncorrectable errors aer_print_error() skips printing if ratelimit_print[i] is not set. In the native AER path, ratelimit_print is initialized by add_error_device() during source device discovery, and is set to 1 for fatal errors to bypass rate limiting since fatal errors should always be logged. The DPC/EDR path uses the DPC-capable port as the error source and reads its AER uncorrectable error status registers directly in dpc_get_aer_uncorrect_severity(). Since it does not go through add_error_device(), ratelimit_print[0] is left uninitialized and zero. As a result, aer_print_error() silently drops all AER error messages for DPC/EDR triggered events. Set ratelimit_print[0] to 1 to bypass rate limiting and always print AER logs for uncorrectable errors detected by the DPC port. Fixes: a57f2bfb4a58 ("PCI/AER: Ratelimit correctable and non-fatal error logging") Co-developed-by: Goudar Manjunath Ramanagouda Signed-off-by: Goudar Manjunath Ramanagouda Signed-off-by: Kuppuswamy Sathyanarayanan [bhelgaas: commit log] Signed-off-by: Bjorn Helgaas Link: https://patch.msgid.link/20260318170449.2733581-1-sathyanarayanan.kuppuswamy@linux.intel.com --- diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c index f028bc795f19..2b779bd1d861 100644 --- a/drivers/pci/pcie/dpc.c +++ b/drivers/pci/pcie/dpc.c @@ -256,6 +256,7 @@ static int dpc_get_aer_uncorrect_severity(struct pci_dev *dev, info->dev[0] = dev; info->error_dev_num = 1; + info->ratelimit_print[0] = 1; return 1; }