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McKenney" , Mahesh J Salgaonkar , Oliver O'Halloran , Kai-Heng Feng , Keith Busch , Robert Richter , Terry Bowman , Shiju Jose , Dave Jiang , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Bjorn Helgaas Subject: Re: [PATCH v6 08/16] PCI/AER: Simplify pci_print_aer() Message-ID: <20250520143841.GA1298026@bhelgaas> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <89d93eb8-ad95-4ac4-b0dc-44b37c458d91@linux.intel.com> On Mon, May 19, 2025 at 05:02:28PM -0700, Sathyanarayanan Kuppuswamy wrote: > On 5/19/25 2:35 PM, Bjorn Helgaas wrote: > > From: Bjorn Helgaas > > > > 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 > > --- > > 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; > > You have cleaned up other stack allocations of struct aer_err_info to zero > initialization in your previous patches. Why not follow the same format > here? I don't think this function resets all fields of aer_err_info, right? This is new to me, but IIUC this does initialize all the fields. https://gcc.gnu.org/onlinedocs/gcc/Designated-Inits.html says "Omitted fields are implicitly initialized the same as for objects that have static storage duration." > > + 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"); > > -- > Sathyanarayanan Kuppuswamy > Linux Kernel Developer >