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authorAlexander Lobakin <alobakin@pm.me>2020-11-20 00:26:33 +0300
committerBjorn Helgaas <bhelgaas@google.com>2020-12-11 00:22:09 +0300
commit0af6e21eed2778e68139941389460e2a00d6ef8e (patch)
tree8fa8b9e9f561bc6ea055b1e04c389011bca4597f /drivers/pci/pci.c
parentee8b1c478a9fbce9c64151ee561c124c4dcd66be (diff)
downloadlinux-0af6e21eed2778e68139941389460e2a00d6ef8e.tar.xz
PCI: Keep both device and resource name for config space remaps
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 Link: https://lore.kernel.org/r/WbKfdybjZ6xNIUjcC5oC8NcuLqrJfkxQAlnO80ag@cp3-web-020.plabs.ch Signed-off-by: Alexander Lobakin <alobakin@pm.me> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r--drivers/pci/pci.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 85cb873266d3..4706e23db8eb 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);