| Message ID | 1555433020-3830-1-git-send-email-mohankumar718@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
| Series | drivers: pci: This patch fix the following checkpatch warning. | expand |
Hi Mohan, On Tue, Apr 16, 2019 at 07:43:40PM +0300, Mohan Kumar wrote: > Use pr_err instead of printk I don't mind taking patches like these, but they do tend to clutter the revision history if we're not careful. So here are some hints: - Make the subject line useful. The one here really doesn't tell me anything. Run "git log --oneline drivers/pci/bus.c" and follow the conventions there. Something like: PCI: Convert printk(KERN_*) to pr_*() - Do all the similar changes at once. I notice similar things in these files: drivers/pci/pci-acpi.c drivers/pci/pci-stub.c drivers/pci/pci-sysfs.c drivers/pci/pci.c drivers/pci/pcie/aspm.c drivers/pci/quirks.c drivers/pci/setup-bus.c drivers/pci/slot.c plus several in drivers/pci/hotplug/. These could all be done in a single patch. - If there are several in a file that use the same prefix, add a "#define pr_fmt()". This should be a separate patch so each patch does only one type of change, which makes them easier to review. - There are several uses of "printk(KERN_DEBUG)", "dev_printk(KERN_DEBUG)", and "pci_printk(KERN_DEBUG)". The obvious thing would be to convert those to pr_debug(), dev_dbg(), and pci_dbg(), but I don't like that approach because pr_debug() and friends do different things depending on how the kernel is built. The uses in PCI provide information that I want to appear in the dmesg log *always*. So they could be (a) left alone or (b) converted from KERN_DEBUG to KERN_INFO (i.e., converted to pr_info(), dev_info(), etc). > WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ... > then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ... > > Signed-off-by: Mohan Kumar <mohankumar718@gmail.com> > --- > drivers/pci/bus.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c > index 5cb40b2..2179a8b 100644 > --- a/drivers/pci/bus.c > +++ b/drivers/pci/bus.c > @@ -23,7 +23,7 @@ void pci_add_resource_offset(struct list_head *resources, struct resource *res, > > entry = resource_list_create_entry(res, 0); > if (!entry) { > - printk(KERN_ERR "PCI: can't add host bridge window %pR\n", res); > + pr_err("PCI: can't add host bridge window %pR\n", res); > return; > } > > -- > 2.7.4 >
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 5cb40b2..2179a8b 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -23,7 +23,7 @@ void pci_add_resource_offset(struct list_head *resources, struct resource *res, entry = resource_list_create_entry(res, 0); if (!entry) { - printk(KERN_ERR "PCI: can't add host bridge window %pR\n", res); + pr_err("PCI: can't add host bridge window %pR\n", res); return; }
Use pr_err instead of printk WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ... then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ... Signed-off-by: Mohan Kumar <mohankumar718@gmail.com> --- drivers/pci/bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)