From 7f1bd46433189d6a8970aab38d1a8931b11920ff Mon Sep 17 00:00:00 2001 From: Keith Busch Date: Mon, 27 Jul 2020 11:10:52 -0400 Subject: [PATCH] PCI/AER: Remove error source from AER struct aer_rpc task #29600094 commit fcd4d369034a819aa393f65c3a8f58db9ab5ed2a upstream. Backport summary: for 4.19 kernel ICX PCIe Gen4 support. The AER struct aer_rpc was carrying a copy of the error source simply as a temperary variable. Remove that from the structure and use a stack variable for the purpose. Signed-off-by: Keith Busch Signed-off-by: Bjorn Helgaas (cherry picked from commit fcd4d369034a819aa393f65c3a8f58db9ab5ed2a) Signed-off-by: Ethan Zhao Signed-off-by: Artie Ding Acked-by: Caspar Zhang --- drivers/pci/pcie/aer.c | 33 ++++++++++++++++----------------- 1 file changed, 16 insertions(+), 17 deletions(-) diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c index a41738ff33e1..85c713f6cfdb 100644 --- a/drivers/pci/pcie/aer.c +++ b/drivers/pci/pcie/aer.c @@ -44,7 +44,6 @@ struct aer_rpc { struct pci_dev *rpd; /* Root Port device */ struct work_struct dpc_handler; struct aer_err_source e_sources[AER_ERROR_SOURCES_MAX]; - struct aer_err_info e_info; unsigned short prod_idx; /* Error Producer Index */ unsigned short cons_idx; /* Error Consumer Index */ int isr; @@ -1176,7 +1175,7 @@ static void aer_isr_one_error(struct aer_rpc *rpc, struct aer_err_source *e_src) { struct pci_dev *pdev = rpc->rpd; - struct aer_err_info *e_info = &rpc->e_info; + struct aer_err_info e_info; pci_rootport_aer_stats_incr(pdev, e_src); @@ -1185,36 +1184,36 @@ static void aer_isr_one_error(struct aer_rpc *rpc, * uncorrectable error being logged. Report correctable error first. */ if (e_src->status & PCI_ERR_ROOT_COR_RCV) { - e_info->id = ERR_COR_ID(e_src->id); - e_info->severity = AER_CORRECTABLE; + e_info.id = ERR_COR_ID(e_src->id); + e_info.severity = AER_CORRECTABLE; if (e_src->status & PCI_ERR_ROOT_MULTI_COR_RCV) - e_info->multi_error_valid = 1; + e_info.multi_error_valid = 1; else - e_info->multi_error_valid = 0; - aer_print_port_info(pdev, e_info); + e_info.multi_error_valid = 0; + aer_print_port_info(pdev, &e_info); - if (find_source_device(pdev, e_info)) - aer_process_err_devices(e_info); + if (find_source_device(pdev, &e_info)) + aer_process_err_devices(&e_info); } if (e_src->status & PCI_ERR_ROOT_UNCOR_RCV) { - e_info->id = ERR_UNCOR_ID(e_src->id); + e_info.id = ERR_UNCOR_ID(e_src->id); if (e_src->status & PCI_ERR_ROOT_FATAL_RCV) - e_info->severity = AER_FATAL; + e_info.severity = AER_FATAL; else - e_info->severity = AER_NONFATAL; + e_info.severity = AER_NONFATAL; if (e_src->status & PCI_ERR_ROOT_MULTI_UNCOR_RCV) - e_info->multi_error_valid = 1; + e_info.multi_error_valid = 1; else - e_info->multi_error_valid = 0; + e_info.multi_error_valid = 0; - aer_print_port_info(pdev, e_info); + aer_print_port_info(pdev, &e_info); - if (find_source_device(pdev, e_info)) - aer_process_err_devices(e_info); + if (find_source_device(pdev, &e_info)) + aer_process_err_devices(&e_info); } } -- GitLab