netdev - Re: [PATCH net v2] ionic: fix 16bit math issue when PAGE

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Date: Sat, 16 Sep 2023 10:50:22 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: David Christensen <drc@....com>
Cc: shannon.nelson@....com, brett.creeley@....com, drivers@...sando.io,
 netdev@...r.kernel.org, drc@...ux.vnet.ibm.com
Subject: Re: [PATCH net v2] ionic: fix 16bit math issue when PAGE_SIZE >= 64KB

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@...emloft.net>:

On Thu, 14 Sep 2023 18:02:52 -0400 you wrote:
> From: David Christensen <drc@...ux.vnet.ibm.com>
> 
> The ionic device supports a maximum buffer length of 16 bits (see
> ionic_rxq_desc or ionic_rxq_sg_elem).  When adding new buffers to
> the receive rings, the function ionic_rx_fill() uses 16bit math when
> calculating the number of pages to allocate for an RX descriptor,
> given the interface's MTU setting. If the system PAGE_SIZE >= 64KB,
> and the buf_info->page_offset is 0, the remain_len value will never
> decrement from the original MTU value and the frag_len value will
> always be 0, causing additional pages to be allocated as scatter-
> gather elements unnecessarily.
> 
> [...]

Here is the summary with links:
  - [net,v2] ionic: fix 16bit math issue when PAGE_SIZE >= 64KB
    https://git.kernel.org/netdev/net/c/8f6b846b0a86

You are awesome, thank you!
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