linux-kernel - Re: [PATCH] RDMA/irdma: Use kvzalloc for paged memory DMA address array

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <a3bd35b1-b99e-4936-afca-b9fb6d03de0f@lambdal.com>
Date: Wed, 21 Jan 2026 11:00:33 -0800
From: Carlos Bilbao <carlos.bilbao@...bdal.com>
To: jgg@...pe.ca, leon@...nel.org, akpm@...ux-foundation.org
Cc: bilbao@...edu, linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
 carlos.bilbao@...nel.org
Subject: Re: [PATCH] RDMA/irdma: Use kvzalloc for paged memory DMA address
 array

Looks like Mustafa is no longer at Intel [1]. Does anyone know how
to reach them, or Shiraz? Their email addresses appear to be
bouncing as well.

Maybe you do, Andrew? 

[1] https://www.phoronix.com/news/Intel-More-Orphans-Maintainers

On 1/21/26 10:54 AM, Carlos Bilbao wrote:
> Allocate array chunk->dmainfo.dmaaddrs using kvzalloc() to allow the
> allocation to fall back to vmalloc when contiguous memory is unavailable
> (instead of failing and logging page allocation warnings).
>
> Signed-off-by: Carlos Bilbao (Lambda) <carlos.bilbao@...nel.org>
> ---
>  drivers/infiniband/hw/irdma/utils.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/infiniband/hw/irdma/utils.c
> b/drivers/infiniband/hw/irdma/utils.c
> index 0422787592d8..59ef9856fd25 100644
> --- a/drivers/infiniband/hw/irdma/utils.c
> +++ b/drivers/infiniband/hw/irdma/utils.c
> @@ -2257,7 +2257,7 @@ void irdma_pble_free_paged_mem(struct irdma_chunk
> *chunk)
>                                  chunk->pg_cnt);
>
>  done:
> -       kfree(chunk->dmainfo.dmaaddrs);
> +       kvfree(chunk->dmainfo.dmaaddrs);
>         chunk->dmainfo.dmaaddrs = NULL;
>         vfree(chunk->vaddr);
>         chunk->vaddr = NULL;
> @@ -2274,7 +2274,7 @@ int irdma_pble_get_paged_mem(struct irdma_chunk
> *chunk, u32 pg_cnt)
>         u32 size;
>         void *va;
>
> -       chunk->dmainfo.dmaaddrs = kzalloc(pg_cnt << 3, GFP_KERNEL);
> +       chunk->dmainfo.dmaaddrs = kvzalloc(pg_cnt << 3, GFP_KERNEL);
>         if (!chunk->dmainfo.dmaaddrs)
>                 return -ENOMEM;
>
> @@ -2295,7 +2295,7 @@ int irdma_pble_get_paged_mem(struct irdma_chunk
> *chunk, u32 pg_cnt)
>
>         return 0;
>  err:
> -       kfree(chunk->dmainfo.dmaaddrs);
> +       kvfree(chunk->dmainfo.dmaaddrs);
>         chunk->dmainfo.dmaaddrs = NULL;
>
>         return -ENOMEM;
> -- 2.50.1 (Apple Git-155)
>
>