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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 References: <20250522232339.1525671-1-helgaas@kernel.org> <20250522232339.1525671-14-helgaas@kernel.org> Content-Language: en-US From: Sathyanarayanan Kuppuswamy In-Reply-To: <20250522232339.1525671-14-helgaas@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 5/22/25 4:21 PM, Bjorn Helgaas wrote: > From: Bjorn Helgaas > > aer_print_error() produces output at a printk level (KERN_ERR/KERN_WARNING/ > etc) that depends on the kind of error, and it calls pcie_print_tlp_log(), > which previously always produced output at KERN_ERR. > > Add a "level" parameter so aer_print_error() can control the level of the > pcie_print_tlp_log() output to match. > > Signed-off-by: Bjorn Helgaas > --- Reviewed-by: Kuppuswamy Sathyanarayanan > drivers/pci/pci.h | 3 ++- > drivers/pci/pcie/aer.c | 5 +++-- > drivers/pci/pcie/dpc.c | 2 +- > drivers/pci/pcie/tlp.c | 6 ++++-- > 4 files changed, 10 insertions(+), 6 deletions(-) > > diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h > index 705f9ef58acc..1a9bfc708757 100644 > --- a/drivers/pci/pci.h > +++ b/drivers/pci/pci.h > @@ -613,7 +613,8 @@ int pcie_read_tlp_log(struct pci_dev *dev, int where, int where2, > struct pcie_tlp_log *log); > unsigned int aer_tlp_log_len(struct pci_dev *dev, u32 aercc); > void pcie_print_tlp_log(const struct pci_dev *dev, > - const struct pcie_tlp_log *log, const char *pfx); > + const struct pcie_tlp_log *log, const char *level, > + const char *pfx); > #endif /* CONFIG_PCIEAER */ > > #ifdef CONFIG_PCIEPORTBUS > diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c > index f80c78846a14..f0936759ba8b 100644 > --- a/drivers/pci/pcie/aer.c > +++ b/drivers/pci/pcie/aer.c > @@ -734,7 +734,7 @@ void aer_print_error(struct pci_dev *dev, struct aer_err_info *info) > __aer_print_error(dev, info); > > if (info->tlp_header_valid) > - pcie_print_tlp_log(dev, &info->tlp, dev_fmt(" ")); > + pcie_print_tlp_log(dev, &info->tlp, level, dev_fmt(" ")); > > out: > if (info->id && info->error_dev_num > 1 && info->id == id) > @@ -797,7 +797,8 @@ void pci_print_aer(struct pci_dev *dev, int aer_severity, > aer->uncor_severity); > > if (tlp_header_valid) > - pcie_print_tlp_log(dev, &aer->header_log, dev_fmt(" ")); > + pcie_print_tlp_log(dev, &aer->header_log, info.level, > + dev_fmt(" ")); > } > EXPORT_SYMBOL_NS_GPL(pci_print_aer, "CXL"); > > diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c > index 6c98fabdba57..7ae1590ea1da 100644 > --- a/drivers/pci/pcie/dpc.c > +++ b/drivers/pci/pcie/dpc.c > @@ -222,7 +222,7 @@ static void dpc_process_rp_pio_error(struct pci_dev *pdev) > dpc_tlp_log_len(pdev), > pdev->subordinate->flit_mode, > &tlp_log); > - pcie_print_tlp_log(pdev, &tlp_log, dev_fmt("")); > + pcie_print_tlp_log(pdev, &tlp_log, KERN_ERR, dev_fmt("")); > > if (pdev->dpc_rp_log_size < PCIE_STD_NUM_TLP_HEADERLOG + 1) > goto clear_status; > diff --git a/drivers/pci/pcie/tlp.c b/drivers/pci/pcie/tlp.c > index 890d5391d7f5..71f8fc9ea2ed 100644 > --- a/drivers/pci/pcie/tlp.c > +++ b/drivers/pci/pcie/tlp.c > @@ -98,12 +98,14 @@ int pcie_read_tlp_log(struct pci_dev *dev, int where, int where2, > * pcie_print_tlp_log - Print TLP Header / Prefix Log contents > * @dev: PCIe device > * @log: TLP Log structure > + * @level: Printk log level > * @pfx: String prefix > * > * Prints TLP Header and Prefix Log information held by @log. > */ > void pcie_print_tlp_log(const struct pci_dev *dev, > - const struct pcie_tlp_log *log, const char *pfx) > + const struct pcie_tlp_log *log, const char *level, > + const char *pfx) > { > /* EE_PREFIX_STR fits the extended DW space needed for the Flit mode */ > char buf[11 * PCIE_STD_MAX_TLP_HEADERLOG + 1]; > @@ -130,6 +132,6 @@ void pcie_print_tlp_log(const struct pci_dev *dev, > } > } > > - pci_err(dev, "%sTLP Header%s: %s\n", pfx, > + dev_printk(level, &dev->dev, "%sTLP Header%s: %s\n", pfx, > log->flit ? " (Flit)" : "", buf); > } -- Sathyanarayanan Kuppuswamy Linux Kernel Developer