[PATCH v2 1/8] PCI/AER: Remove aer_print_port_info

[Jon Pan-Doh <pandoh@google.com>]

Info logged is duplicated when the source device is processed. In both
cases, BDF and error severity are derived from aer_error_info. If
no source device is found, then an error is logged with the BDF from
aer_error_info.

Code flow:
aer_isr_one_error()
-> aer_print_port_info()
-> find_source_device()
   -> return/pci_info() if no device found else continue
-> aer_process_err_devices()
   -> aer_print_error()

aer_print_port_info():
pcieport 0000:00:04.0: Correctable error message received
from 0000:01:00.0

aer_print_error():
e1000e 0000:01:00.0: PCIe Bus Error: severity=Correctable, type=Data Link Layer, (Receiver ID)
e1000e 0000:01:00.0:   device [8086:10d3] error status/mask=00000040/0000e000
e1000e 0000:01:00.0:    [ 6] BadTLP

Tested using aer-inject[1]. No more root port log on dmesg.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/gong.chen/aer-inject.git

Signed-off-by: Jon Pan-Doh <pandoh@google.com>
Reviewed-by: Karolina Stolarek <karolina.stolarek@oracle.com>
---
 drivers/pci/pcie/aer.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index ad4206125b86..9a8cc81d01e4 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -733,18 +733,6 @@ void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
 			info->severity, info->tlp_header_valid, &info->tlp);
 }
 
-static void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info)
-{
-	u8 bus = info->id >> 8;
-	u8 devfn = info->id & 0xff;
-
-	pci_info(dev, "%s%s error message received from %04x:%02x:%02x.%d\n",
-		 info->multi_error_valid ? "Multiple " : "",
-		 aer_error_severity_string[info->severity],
-		 pci_domain_nr(dev->bus), bus, PCI_SLOT(devfn),
-		 PCI_FUNC(devfn));
-}
-
 #ifdef CONFIG_ACPI_APEI_PCIEAER
 int cper_severity_to_aer(int cper_severity)
 {
@@ -1296,7 +1284,6 @@ static void aer_isr_one_error(struct aer_rpc *rpc,
 			e_info.multi_error_valid = 1;
 		else
 			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);
@@ -1315,8 +1302,6 @@ static void aer_isr_one_error(struct aer_rpc *rpc,
 		else
 			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);
 	}
-- 
2.48.1.601.g30ceb7b040-goog