linux-kernel - Re: [PATCH v11 5/7] PCI/AER: Unify aer error defines at single space

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Date:   Tue, 27 Feb 2018 11:42:08 +0530
From:   poza@...eaurora.org
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Dongdong Liu <liudongdong3@...wei.com>,
        Keith Busch <keith.busch@...el.com>, Wei Zhang <wzhang@...com>,
        Sinan Kaya <okaya@...eaurora.org>,
        Timur Tabi <timur@...eaurora.org>
Subject: Re: [PATCH v11 5/7] PCI/AER: Unify aer error defines at single space

On 2018-02-24 21:06, Bjorn Helgaas wrote:
> On Fri, Feb 23, 2018 at 01:54:02PM +0530, Oza Pawandeep wrote:
>> This patch moves AER error defines to drivers/pci/pci.h.
>> So that it unifies the error repoting codes at single place along with 
>> dpc
> 
> s/repoting/reporting/
> s/dpc/DPC/ (in English text)
> 
>> Signed-off-by: Oza Pawandeep <poza@...eaurora.org>
>> 
>> diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
>> index 1efefe9..7ae9bb3 100644
>> --- a/drivers/acpi/apei/ghes.c
>> +++ b/drivers/acpi/apei/ghes.c
>> @@ -56,6 +56,7 @@
>>  #include <ras/ras_event.h>
>> 
>>  #include "apei-internal.h"
>> +#include "../../pci/pci.h"
> 
> You're right, it's ugly to use this sort of path to a private PCI
> header file from outside drivers/pci.
> 
> Could you just add DPC_FATAL to include/linux/aer.h?  Maybe we
> discarded that for some reason?  Having pcie-dpc.c include linux/aer.h
> seems like it would be better than having this ACPI code include
> "../../pci/pci.h"

pcie-dpc already includes #include "aer/aerdrv.h", which in turn 
includes aer.h
so aer.h is the place where DPC_FATAL should go.

> 
>>  #define GHES_PFX	"GHES: "
>> 
>> diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
>> index f8575da..c8394ec 100644
>> --- a/drivers/pci/pci.h
>> +++ b/drivers/pci/pci.h
>> @@ -343,7 +343,11 @@ static inline resource_size_t 
>> pci_resource_alignment(struct pci_dev *dev,
>>  void pci_enable_acs(struct pci_dev *dev);
>> 
>>  /* PCI error reporting and recovery */
>> -#define DPC_FATAL	4
>> +#define AER_NONFATAL		0
>> +#define AER_FATAL		1
>> +#define AER_CORRECTABLE		2
>> +
>> +#define DPC_FATAL		4
>> 
>>  void pcie_do_recovery(struct pci_dev *dev, int severity);
>> 
>> diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c 
>> b/drivers/pci/pcie/aer/aerdrv_errprint.c
>> index 6a352e6..4c59f37 100644
>> --- a/drivers/pci/pcie/aer/aerdrv_errprint.c
>> +++ b/drivers/pci/pcie/aer/aerdrv_errprint.c
>> @@ -19,6 +19,7 @@
>>  #include <linux/cper.h>
>> 
>>  #include "aerdrv.h"
>> +#include "../../pci.h"
>>  #include <ras/ras_event.h>
>> 
>>  #define AER_AGENT_RECEIVER		0
>> diff --git a/include/linux/aer.h b/include/linux/aer.h
>> index 8f87bbe..3eac8ed 100644
>> --- a/include/linux/aer.h
>> +++ b/include/linux/aer.h
>> @@ -11,10 +11,6 @@
>>  #include <linux/errno.h>
>>  #include <linux/types.h>
>> 
>> -#define AER_NONFATAL			0
>> -#define AER_FATAL			1
>> -#define AER_CORRECTABLE			2
>> -
>>  struct pci_dev;
>> 
>>  struct aer_header_log_regs {
>> diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h
>> index 9c68986..d75c75b 100644
>> --- a/include/ras/ras_event.h
>> +++ b/include/ras/ras_event.h
>> @@ -13,6 +13,7 @@
>>  #include <linux/aer.h>
>>  #include <linux/cper.h>
>>  #include <linux/mm.h>
>> +#include "../../../drivers/pci/pci.h"
>> 
>>  /*
>>   * MCE Extended Error Log trace event
>> --
>> Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm 
>> Technologies, Inc.,
>> a Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a 
>> Linux Foundation Collaborative Project.
>>