Re: [PATCH] drivers: use common container_of macro

[fengchengwen <fengchengwen@huawei.com>]

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Acked-by: Chengwen Feng <fengchengwen@huawei.com>

On 2024/2/13 23:37, David Marchand wrote:
> rte_common.h provides container_of if none is defined.
>
> The drivers headers touched by this commit either already include
> rte_common.h or use some other common macro defined in rte_common.h.
> As a consequence, it seems safe to assume that container_of is always
> available for includers of those headers.
>
> Signed-off-by: David Marchand<david.marchand@redhat.com>
> ---
>   drivers/net/cxgbe/cxgbe_compat.h      | 6 ------
>   drivers/net/i40e/i40e_rxtx.h          | 5 -----
>   drivers/raw/ifpga/base/ifpga_compat.h | 5 -----
>   3 files changed, 16 deletions(-)
>
> diff --git a/drivers/net/cxgbe/cxgbe_compat.h b/drivers/net/cxgbe/cxgbe_compat.h
> index 0b02eb62a9..e74d476f6d 100644
> --- a/drivers/net/cxgbe/cxgbe_compat.h
> +++ b/drivers/net/cxgbe/cxgbe_compat.h
> @@ -135,12 +135,6 @@ typedef uint64_t  dma_addr_t;
>    */
>   #define cxgbe_roundup(_p, _s) (((unsigned long)(_p) + (_s - 1)) & ~(_s - 1))
>   
> -#ifndef container_of
> -#define container_of(ptr, type, member) ({ \
> -		typeof(((type *)0)->member)(*__mptr) = (ptr); \
> -		(type *)((char *)__mptr - offsetof(type, member)); })
> -#endif
> -
>   #define ARRAY_SIZE(arr) RTE_DIM(arr)
>   
>   #define cpu_to_be16(o) rte_cpu_to_be_16(o)
> diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h
> index b191f23e1f..a3a53ffce4 100644
> --- a/drivers/net/i40e/i40e_rxtx.h
> +++ b/drivers/net/i40e/i40e_rxtx.h
> @@ -45,11 +45,6 @@
>   #define I40E_RX_DESC_EXT_STATUS_FLEXBL_MASK   0x03
>   #define I40E_RX_DESC_EXT_STATUS_FLEXBL_FLEX   0x01
>   
> -#undef container_of
> -#define container_of(ptr, type, member) ({ \
> -		typeof(((type *)0)->member)(*__mptr) = (ptr); \
> -		(type *)((char *)__mptr - offsetof(type, member)); })
> -
>   #define I40E_TD_CMD (I40E_TX_DESC_CMD_ICRC |\
>   		     I40E_TX_DESC_CMD_EOP)
>   
> diff --git a/drivers/raw/ifpga/base/ifpga_compat.h b/drivers/raw/ifpga/base/ifpga_compat.h
> index cdeca70ca5..8a624d174f 100644
> --- a/drivers/raw/ifpga/base/ifpga_compat.h
> +++ b/drivers/raw/ifpga/base/ifpga_compat.h
> @@ -7,11 +7,6 @@
>   
>   #include "opae_osdep.h"
>   
> -#undef container_of
> -#define container_of(ptr, type, member) ({ \
> -		typeof(((type *)0)->member)(*__mptr) = (ptr); \
> -		(type *)((char *)__mptr - offsetof(type, member)); })
> -
>   #define IFPGA_PAGE_SHIFT       12
>   #define IFPGA_PAGE_SIZE        (1 << IFPGA_PAGE_SHIFT)
>   #define IFPGA_PAGE_MASK        (~(IFPGA_PAGE_SIZE - 1))

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