diff mbox series

PCI: iproc: Use the bitmap API to allocate bitmaps

Message ID d839a951358ceb447226dc776590a2a38f3e3f9d.1656940469.git.christophe.jaillet@wanadoo.fr (mailing list archive)
State Accepted
Delegated to: Bjorn Helgaas
Headers show
Series PCI: iproc: Use the bitmap API to allocate bitmaps | expand

Commit Message

Christophe JAILLET July 4, 2022, 1:15 p.m. UTC
Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/pci/controller/pcie-iproc-msi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Ray Jui July 4, 2022, 5:28 p.m. UTC | #1
On 7/4/2022 6:15 AM, Christophe JAILLET wrote:
> Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.
> 
> It is less verbose and it improves the semantic.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
>  drivers/pci/controller/pcie-iproc-msi.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/pci/controller/pcie-iproc-msi.c b/drivers/pci/controller/pcie-iproc-msi.c
> index 757b7fbcdc59..fee036b07cd4 100644
> --- a/drivers/pci/controller/pcie-iproc-msi.c
> +++ b/drivers/pci/controller/pcie-iproc-msi.c
> @@ -589,8 +589,8 @@ int iproc_msi_init(struct iproc_pcie *pcie, struct device_node *node)
>  		msi->has_inten_reg = true;
>  
>  	msi->nr_msi_vecs = msi->nr_irqs * EQ_LEN;
> -	msi->bitmap = devm_kcalloc(pcie->dev, BITS_TO_LONGS(msi->nr_msi_vecs),
> -				   sizeof(*msi->bitmap), GFP_KERNEL);
> +	msi->bitmap = devm_bitmap_zalloc(pcie->dev, msi->nr_msi_vecs,
> +					 GFP_KERNEL);
>  	if (!msi->bitmap)
>  		return -ENOMEM;
>  

Improvement looks fine to me. Thanks.

Acked-by: Ray Jui <ray.jui@broadcom.com>
Bjorn Helgaas July 5, 2022, 8:03 p.m. UTC | #2
On Mon, Jul 04, 2022 at 03:15:03PM +0200, Christophe JAILLET wrote:
> Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.
> 
> It is less verbose and it improves the semantic.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Applied with Ray's ack to pci/ctrl/iproc for v5.20, thanks!

> ---
>  drivers/pci/controller/pcie-iproc-msi.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/pci/controller/pcie-iproc-msi.c b/drivers/pci/controller/pcie-iproc-msi.c
> index 757b7fbcdc59..fee036b07cd4 100644
> --- a/drivers/pci/controller/pcie-iproc-msi.c
> +++ b/drivers/pci/controller/pcie-iproc-msi.c
> @@ -589,8 +589,8 @@ int iproc_msi_init(struct iproc_pcie *pcie, struct device_node *node)
>  		msi->has_inten_reg = true;
>  
>  	msi->nr_msi_vecs = msi->nr_irqs * EQ_LEN;
> -	msi->bitmap = devm_kcalloc(pcie->dev, BITS_TO_LONGS(msi->nr_msi_vecs),
> -				   sizeof(*msi->bitmap), GFP_KERNEL);
> +	msi->bitmap = devm_bitmap_zalloc(pcie->dev, msi->nr_msi_vecs,
> +					 GFP_KERNEL);
>  	if (!msi->bitmap)
>  		return -ENOMEM;
>  
> -- 
> 2.34.1
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
diff mbox series

Patch

diff --git a/drivers/pci/controller/pcie-iproc-msi.c b/drivers/pci/controller/pcie-iproc-msi.c
index 757b7fbcdc59..fee036b07cd4 100644
--- a/drivers/pci/controller/pcie-iproc-msi.c
+++ b/drivers/pci/controller/pcie-iproc-msi.c
@@ -589,8 +589,8 @@  int iproc_msi_init(struct iproc_pcie *pcie, struct device_node *node)
 		msi->has_inten_reg = true;
 
 	msi->nr_msi_vecs = msi->nr_irqs * EQ_LEN;
-	msi->bitmap = devm_kcalloc(pcie->dev, BITS_TO_LONGS(msi->nr_msi_vecs),
-				   sizeof(*msi->bitmap), GFP_KERNEL);
+	msi->bitmap = devm_bitmap_zalloc(pcie->dev, msi->nr_msi_vecs,
+					 GFP_KERNEL);
 	if (!msi->bitmap)
 		return -ENOMEM;