| Message ID | WbKfdybjZ6xNIUjcC5oC8NcuLqrJfkxQAlnO80ag@cp3-web-020.plabs.ch |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,pci-next] PCI: Keep both device name and resource name for config space remaps | expand |
On Thu, Nov 19, 2020 at 09:26:33PM +0000, Alexander Lobakin wrote: > Follow the rule taken in commit 35bd8c07db2c > ("devres: keep both device name and resource name in pretty name") > and keep both device and resource names while requesting memory > regions for PCI config space to prettify e.g. /proc/iomem output: > > Before (DWC Host Controller): > > 18b00000-18b01fff : dbi > 18b10000-18b11fff : config > 18b20000-18b21fff : dbi > 18b30000-18b31fff : config > > After: > > 18b00000-18b01fff : 18b00000.pci dbi > 18b10000-18b11fff : 18b00000.pci config > 18b20000-18b21fff : 18b20000.pci dbi > 18b30000-18b31fff : 18b20000.pci config > > Since v1 [0]: > - massage subject and commit message (Bjorn); > - no functional changes. > > [0] https://lore.kernel.org/lkml/JvyOzv8K8n5CCdP1xfLOdOWh4AbFrXdMMOEExr6em8@cp4-web-036.plabs.ch > > Cc: Bjorn Helgaas <bhelgaas@google.com> > Signed-off-by: Alexander Lobakin <alobakin@pm.me> Applied to pci/enumeration for v5.11, thanks! > --- > drivers/pci/pci.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c > index e578d34095e9..0716691f7d14 100644 > --- a/drivers/pci/pci.c > +++ b/drivers/pci/pci.c > @@ -4188,7 +4188,14 @@ void __iomem *devm_pci_remap_cfg_resource(struct device *dev, > } > > size = resource_size(res); > - name = res->name ?: dev_name(dev); > + > + if (res->name) > + name = devm_kasprintf(dev, GFP_KERNEL, "%s %s", dev_name(dev), > + res->name); > + else > + name = devm_kstrdup(dev, dev_name(dev), GFP_KERNEL); > + if (!name) > + return IOMEM_ERR_PTR(-ENOMEM); > > if (!devm_request_mem_region(dev, res->start, size, name)) { > dev_err(dev, "can't request region for resource %pR\n", res); > -- > 2.29.2 > >
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index e578d34095e9..0716691f7d14 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -4188,7 +4188,14 @@ void __iomem *devm_pci_remap_cfg_resource(struct device *dev, } size = resource_size(res); - name = res->name ?: dev_name(dev); + + if (res->name) + name = devm_kasprintf(dev, GFP_KERNEL, "%s %s", dev_name(dev), + res->name); + else + name = devm_kstrdup(dev, dev_name(dev), GFP_KERNEL); + if (!name) + return IOMEM_ERR_PTR(-ENOMEM); if (!devm_request_mem_region(dev, res->start, size, name)) { dev_err(dev, "can't request region for resource %pR\n", res);
Follow the rule taken in commit 35bd8c07db2c ("devres: keep both device name and resource name in pretty name") and keep both device and resource names while requesting memory regions for PCI config space to prettify e.g. /proc/iomem output: Before (DWC Host Controller): 18b00000-18b01fff : dbi 18b10000-18b11fff : config 18b20000-18b21fff : dbi 18b30000-18b31fff : config After: 18b00000-18b01fff : 18b00000.pci dbi 18b10000-18b11fff : 18b00000.pci config 18b20000-18b21fff : 18b20000.pci dbi 18b30000-18b31fff : 18b20000.pci config Since v1 [0]: - massage subject and commit message (Bjorn); - no functional changes. [0] https://lore.kernel.org/lkml/JvyOzv8K8n5CCdP1xfLOdOWh4AbFrXdMMOEExr6em8@cp4-web-036.plabs.ch Cc: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Alexander Lobakin <alobakin@pm.me> --- drivers/pci/pci.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)