[dpdk-dev] [PATCH v3 5/6] ena: fix memory management issue

[Bruce Richardson]

On Thu, Jun 30, 2016 at 05:04:58PM +0200, Jan Medala wrote:
> After allocating memzone it's required to zeroize memory in it.
> Freeing memzone with function dedicated for memoryzones.
> 

Can you provide a fixes line for this patch?

> Signed-off-by: Alexander Matushevsky <matua at amazon.com>
> Signed-off-by: Jakub Palider <jpa at semihalf.com>
> Signed-off-by: Jan Medala <jan at semihalf.com>
> ---
>  drivers/net/ena/base/ena_plat_dpdk.h | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ena/base/ena_plat_dpdk.h b/drivers/net/ena/base/ena_plat_dpdk.h
> index b1ed80c..87c3bf1 100644
> --- a/drivers/net/ena/base/ena_plat_dpdk.h
> +++ b/drivers/net/ena/base/ena_plat_dpdk.h
> @@ -62,7 +62,7 @@ typedef uint64_t dma_addr_t;
>  #endif
>  
>  #define ena_atomic32_t rte_atomic32_t
> -#define ena_mem_handle_t void *
> +#define ena_mem_handle_t const struct rte_memzone *
>  
>  #define SZ_256 (256U)
>  #define SZ_4K (4096U)
> @@ -188,13 +188,15 @@ typedef uint64_t dma_addr_t;
>  		snprintf(z_name, sizeof(z_name),			\
>  				"ena_alloc_%d", ena_alloc_cnt++);	\
>  		mz = rte_memzone_reserve(z_name, size, SOCKET_ID_ANY, 0); \
> +		memset(mz->addr, 0, size);				\
>  		virt = mz->addr;					\
>  		phys = mz->phys_addr;					\
> +		handle = mz;						\
>  	} while (0)
>  #define ENA_MEM_FREE_COHERENT(dmadev, size, virt, phys, handle) 	\
>  		({ ENA_TOUCH(size); ENA_TOUCH(phys);			\
>  		   ENA_TOUCH(dmadev);					\
> -		   rte_free(virt); })
> +		   rte_memzone_free(handle); })
>  
>  #define ENA_MEM_ALLOC_COHERENT_NODE(dmadev, size, virt, phys, node, dev_node) \
>  	do {								\
> -- 
> 2.8.2
>