Re: [PATCH] [net-next] net: netsec: use dma_addr_t for storing dma address

[David Miller]

From: Arnd Bergmann 
Date: Sat, 13 Jan 2018 22:13:44 +0100

> On targets that have different sizes for phys_addr_t and dma_addr_t,
> we get a type mismatch error:
> 
> drivers/net/ethernet/socionext/netsec.c: In function 'netsec_alloc_dring':
> drivers/net/ethernet/socionext/netsec.c:970:9: error: passing argument 3 of 
> 'dma_zalloc_coherent' from incompatible pointer type 
> [-Werror=incompatible-pointer-types]
> 
> The code is otherwise correct, as the address is never actually used as a
> physical address but only passed into a DMA register.  For consistently,
> I'm changing the variable name as well, to clarify that this is a DMA
> address.
> 
> Signed-off-by: Arnd Bergmann 

Applied, thanks Arnd.

Re: [PATCH] [net-next] net: netsec: use dma_addr_t for storing dma address

[David Miller]

From: Arnd Bergmann 
Date: Sat, 13 Jan 2018 22:13:44 +0100

> On targets that have different sizes for phys_addr_t and dma_addr_t,
> we get a type mismatch error:
> 
> drivers/net/ethernet/socionext/netsec.c: In function 'netsec_alloc_dring':
> drivers/net/ethernet/socionext/netsec.c:970:9: error: passing argument 3 of 
> 'dma_zalloc_coherent' from incompatible pointer type 
> [-Werror=incompatible-pointer-types]
> 
> The code is otherwise correct, as the address is never actually used as a
> physical address but only passed into a DMA register.  For consistently,
> I'm changing the variable name as well, to clarify that this is a DMA
> address.
> 
> Signed-off-by: Arnd Bergmann 

Applied, thanks Arnd.

Re: [PATCH] [net-next] net: netsec: use dma_addr_t for storing dma address

[Ard Biesheuvel]

On 13 January 2018 at 21:13, Arnd Bergmann  wrote:
> On targets that have different sizes for phys_addr_t and dma_addr_t,
> we get a type mismatch error:
>
> drivers/net/ethernet/socionext/netsec.c: In function 'netsec_alloc_dring':
> drivers/net/ethernet/socionext/netsec.c:970:9: error: passing argument 3 of 
> 'dma_zalloc_coherent' from incompatible pointer type 
> [-Werror=incompatible-pointer-types]
>
> The code is otherwise correct, as the address is never actually used as a
> physical address but only passed into a DMA register.  For consistently,

consistency

> I'm changing the variable name as well, to clarify that this is a DMA
> address.
>
> Signed-off-by: Arnd Bergmann 

Acked-by: Ard Biesheuvel 

> ---
>  drivers/net/ethernet/socionext/netsec.c | 14 +++---
>  1 file changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/net/ethernet/socionext/netsec.c 
> b/drivers/net/ethernet/socionext/netsec.c
> index 6c263af86b8a..f4c0b02ddad8 100644
> --- a/drivers/net/ethernet/socionext/netsec.c
> +++ b/drivers/net/ethernet/socionext/netsec.c
> @@ -252,7 +252,7 @@ struct netsec_desc {
>  };
>
>  struct netsec_desc_ring {
> -   phys_addr_t desc_phys;
> +   dma_addr_t desc_dma;
> struct netsec_desc *desc;
> void *vaddr;
> u16 pkt_cnt;
> @@ -953,7 +953,7 @@ static void netsec_free_dring(struct netsec_priv *priv, 
> int id)
>
> if (dring->vaddr) {
> dma_free_coherent(priv->dev, DESC_SZ * DESC_NUM,
> - dring->vaddr, dring->desc_phys);
> + dring->vaddr, dring->desc_dma);
> dring->vaddr = NULL;
> }
>
> @@ -967,7 +967,7 @@ static int netsec_alloc_dring(struct netsec_priv *priv, 
> enum ring_id id)
> int ret = 0;
>
> dring->vaddr = dma_zalloc_coherent(priv->dev, DESC_SZ * DESC_NUM,
> -  >desc_phys, GFP_KERNEL);
> +  >desc_dma, GFP_KERNEL);
> if (!dring->vaddr) {
> ret = -ENOMEM;
> goto err;
> @@ -1087,14 +1087,14 @@ static int netsec_reset_hardware(struct netsec_priv 
> *priv)
>
> /* set desc_start addr */
> netsec_write(priv, NETSEC_REG_NRM_RX_DESC_START_UP,
> -
> upper_32_bits(priv->desc_ring[NETSEC_RING_RX].desc_phys));
> +upper_32_bits(priv->desc_ring[NETSEC_RING_RX].desc_dma));
> netsec_write(priv, NETSEC_REG_NRM_RX_DESC_START_LW,
> -
> lower_32_bits(priv->desc_ring[NETSEC_RING_RX].desc_phys));
> +lower_32_bits(priv->desc_ring[NETSEC_RING_RX].desc_dma));
>
> netsec_write(priv, NETSEC_REG_NRM_TX_DESC_START_UP,
> -
> upper_32_bits(priv->desc_ring[NETSEC_RING_TX].desc_phys));
> +upper_32_bits(priv->desc_ring[NETSEC_RING_TX].desc_dma));
> netsec_write(priv, NETSEC_REG_NRM_TX_DESC_START_LW,
> -
> lower_32_bits(priv->desc_ring[NETSEC_RING_TX].desc_phys));
> +lower_32_bits(priv->desc_ring[NETSEC_RING_TX].desc_dma));
>
> /* set normal tx dring ring config */
> netsec_write(priv, NETSEC_REG_NRM_TX_CONFIG,
> --
> 2.9.0
>

Re: [PATCH] [net-next] net: netsec: use dma_addr_t for storing dma address

[Ard Biesheuvel]

On 13 January 2018 at 21:13, Arnd Bergmann  wrote:
> On targets that have different sizes for phys_addr_t and dma_addr_t,
> we get a type mismatch error:
>
> drivers/net/ethernet/socionext/netsec.c: In function 'netsec_alloc_dring':
> drivers/net/ethernet/socionext/netsec.c:970:9: error: passing argument 3 of 
> 'dma_zalloc_coherent' from incompatible pointer type 
> [-Werror=incompatible-pointer-types]
>
> The code is otherwise correct, as the address is never actually used as a
> physical address but only passed into a DMA register.  For consistently,

consistency

> I'm changing the variable name as well, to clarify that this is a DMA
> address.
>
> Signed-off-by: Arnd Bergmann 

Acked-by: Ard Biesheuvel 

> ---
>  drivers/net/ethernet/socionext/netsec.c | 14 +++---
>  1 file changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/net/ethernet/socionext/netsec.c 
> b/drivers/net/ethernet/socionext/netsec.c
> index 6c263af86b8a..f4c0b02ddad8 100644
> --- a/drivers/net/ethernet/socionext/netsec.c
> +++ b/drivers/net/ethernet/socionext/netsec.c
> @@ -252,7 +252,7 @@ struct netsec_desc {
>  };
>
>  struct netsec_desc_ring {
> -   phys_addr_t desc_phys;
> +   dma_addr_t desc_dma;
> struct netsec_desc *desc;
> void *vaddr;
> u16 pkt_cnt;
> @@ -953,7 +953,7 @@ static void netsec_free_dring(struct netsec_priv *priv, 
> int id)
>
> if (dring->vaddr) {
> dma_free_coherent(priv->dev, DESC_SZ * DESC_NUM,
> - dring->vaddr, dring->desc_phys);
> + dring->vaddr, dring->desc_dma);
> dring->vaddr = NULL;
> }
>
> @@ -967,7 +967,7 @@ static int netsec_alloc_dring(struct netsec_priv *priv, 
> enum ring_id id)
> int ret = 0;
>
> dring->vaddr = dma_zalloc_coherent(priv->dev, DESC_SZ * DESC_NUM,
> -  >desc_phys, GFP_KERNEL);
> +  >desc_dma, GFP_KERNEL);
> if (!dring->vaddr) {
> ret = -ENOMEM;
> goto err;
> @@ -1087,14 +1087,14 @@ static int netsec_reset_hardware(struct netsec_priv 
> *priv)
>
> /* set desc_start addr */
> netsec_write(priv, NETSEC_REG_NRM_RX_DESC_START_UP,
> -
> upper_32_bits(priv->desc_ring[NETSEC_RING_RX].desc_phys));
> +upper_32_bits(priv->desc_ring[NETSEC_RING_RX].desc_dma));
> netsec_write(priv, NETSEC_REG_NRM_RX_DESC_START_LW,
> -
> lower_32_bits(priv->desc_ring[NETSEC_RING_RX].desc_phys));
> +lower_32_bits(priv->desc_ring[NETSEC_RING_RX].desc_dma));
>
> netsec_write(priv, NETSEC_REG_NRM_TX_DESC_START_UP,
> -
> upper_32_bits(priv->desc_ring[NETSEC_RING_TX].desc_phys));
> +upper_32_bits(priv->desc_ring[NETSEC_RING_TX].desc_dma));
> netsec_write(priv, NETSEC_REG_NRM_TX_DESC_START_LW,
> -
> lower_32_bits(priv->desc_ring[NETSEC_RING_TX].desc_phys));
> +lower_32_bits(priv->desc_ring[NETSEC_RING_TX].desc_dma));
>
> /* set normal tx dring ring config */
> netsec_write(priv, NETSEC_REG_NRM_TX_CONFIG,
> --
> 2.9.0
>