linux-kernel - Re: [PATCH v6 08/16] PCI/AER: Simplify pci_print

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Message-ID: <c77305f2-1117-8c7c-83e4-1036c46dbbbb@linux.intel.com>
Date: Tue, 20 May 2025 13:42:36 +0300 (EEST)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Bjorn Helgaas <helgaas@...nel.org>
cc: linux-pci@...r.kernel.org, Jon Pan-Doh <pandoh@...gle.com>, 
    Karolina Stolarek <karolina.stolarek@...cle.com>, 
    Martin Petersen <martin.petersen@...cle.com>, 
    Ben Fuller <ben.fuller@...cle.com>, Drew Walton <drewwalton@...rosoft.com>, 
    Anil Agrawal <anilagrawal@...a.com>, Tony Luck <tony.luck@...el.com>, 
    Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@...ux.intel.com>, 
    Lukas Wunner <lukas@...ner.de>, 
    Jonathan Cameron <Jonathan.Cameron@...wei.com>, 
    Sargun Dhillon <sargun@...a.com>, "Paul E . McKenney" <paulmck@...nel.org>, 
    Mahesh J Salgaonkar <mahesh@...ux.ibm.com>, 
    Oliver O'Halloran <oohall@...il.com>, Kai-Heng Feng <kaihengf@...dia.com>, 
    Keith Busch <kbusch@...nel.org>, Robert Richter <rrichter@....com>, 
    Terry Bowman <terry.bowman@....com>, Shiju Jose <shiju.jose@...wei.com>, 
    Dave Jiang <dave.jiang@...el.com>, LKML <linux-kernel@...r.kernel.org>, 
    linuxppc-dev@...ts.ozlabs.org, Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH v6 08/16] PCI/AER: Simplify pci_print_aer()

On Mon, 19 May 2025, Bjorn Helgaas wrote:

> From: Bjorn Helgaas <bhelgaas@...gle.com>
> 
> Simplify pci_print_aer() by initializing the struct aer_err_info "info"
> with a designated initializer list (it was previously initialized with
> memset()) and using pci_name().
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
> ---
>  drivers/pci/pcie/aer.c | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
> index 40f003eca1c5..73d618354f6a 100644
> --- a/drivers/pci/pcie/aer.c
> +++ b/drivers/pci/pcie/aer.c
> @@ -765,7 +765,10 @@ void pci_print_aer(struct pci_dev *dev, int aer_severity,
>  {
>  	int layer, agent, tlp_header_valid = 0;
>  	u32 status, mask;
> -	struct aer_err_info info;
> +	struct aer_err_info info = {
> +		.severity = aer_severity,
> +		.first_error = PCI_ERR_CAP_FEP(aer->cap_control),
> +	};
>  
>  	if (aer_severity == AER_CORRECTABLE) {
>  		status = aer->cor_status;
> @@ -776,14 +779,11 @@ void pci_print_aer(struct pci_dev *dev, int aer_severity,
>  		tlp_header_valid = status & AER_LOG_TLP_MASKS;
>  	}
>  
> -	layer = AER_GET_LAYER_ERROR(aer_severity, status);
> -	agent = AER_GET_AGENT(aer_severity, status);
> -
> -	memset(&info, 0, sizeof(info));
> -	info.severity = aer_severity;
>  	info.status = status;
>  	info.mask = mask;
> -	info.first_error = PCI_ERR_CAP_FEP(aer->cap_control);
> +
> +	layer = AER_GET_LAYER_ERROR(aer_severity, status);
> +	agent = AER_GET_AGENT(aer_severity, status);
>  
>  	pci_err(dev, "aer_status: 0x%08x, aer_mask: 0x%08x\n", status, mask);
>  	__aer_print_error(dev, &info);
> @@ -797,7 +797,7 @@ void pci_print_aer(struct pci_dev *dev, int aer_severity,
>  	if (tlp_header_valid)
>  		pcie_print_tlp_log(dev, &aer->header_log, dev_fmt("  "));
>  
> -	trace_aer_event(dev_name(&dev->dev), (status & ~mask),
> +	trace_aer_event(pci_name(dev), (status & ~mask),
>  			aer_severity, tlp_header_valid, &aer->header_log);
>  }
>  EXPORT_SYMBOL_NS_GPL(pci_print_aer, "CXL");
> 

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>

-- 
 i.