Re: [PATCH v2 net] ptp: netc: fix period truncation and potential divide-by-zero in PEROUT

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:

On Fri, 21 Aug 2026 11:24:49 +0800 you wrote:
> From: Wei Fang <wei.fang@xxxxxxx>
> 
> The max_period bound in net_timer_enable_perout() was computed as:
> 
>   max_period = (u64)NETC_TMR_DEFAULT_FIPER + integral_period;
> 
> which exceeds U32_MAX when integral_period > 0 (e.g. 0x100000002 for
> the default 333333333 Hz clock). A period_ns that passes this check but
> exceeds U32_MAX is then silently truncated when stored into the u32
> struct netc_pp::period field.
> 
> [...]

Here is the summary with links:
  - [v2,net] ptp: netc: fix period truncation and potential divide-by-zero in PEROUT
    https://git.kernel.org/netdev/net/c/777dbc9914b2

You are awesome, thank you!
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