[PATCH] PCI: dwc: Use the bitmap API to allocate bitmaps

From: Christophe JAILLET
Date: Sat Jul 09 2022 - 10:11:01 EST


Use devm_bitmap_zalloc() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
drivers/pci/controller/dwc/pcie-designware-ep.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index fb887495f53e..ad54aaa71a02 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -721,17 +721,13 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
ep->phys_base = res->start;
ep->addr_size = resource_size(res);

- ep->ib_window_map = devm_kcalloc(dev,
- BITS_TO_LONGS(pci->num_ib_windows),
- sizeof(long),
- GFP_KERNEL);
+ ep->ib_window_map = devm_bitmap_zalloc(dev, pci->num_ib_windows,
+ GFP_KERNEL);
if (!ep->ib_window_map)
return -ENOMEM;

- ep->ob_window_map = devm_kcalloc(dev,
- BITS_TO_LONGS(pci->num_ob_windows),
- sizeof(long),
- GFP_KERNEL);
+ ep->ob_window_map = devm_bitmap_zalloc(dev, pci->num_ob_windows,
+ GFP_KERNEL);
if (!ep->ob_window_map)
return -ENOMEM;

--
2.34.1