linux-kernel - Re: [PATCH v2] net/ena: Fix build warning in ena_xdp

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Message-Id: <20200428.135830.274833516409783023.davem@davemloft.net>
Date:   Tue, 28 Apr 2020 13:58:30 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     gshan@...hat.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        netanel@...zon.com, akiyano@...zon.com, gtzalik@...zon.com,
        shan.gavin@...il.com
Subject: Re: [PATCH v2] net/ena: Fix build warning in ena_xdp_set()

From: Gavin Shan <gshan@...hat.com>
Date: Tue, 28 Apr 2020 14:49:45 +1000

> This fixes the following build warning in ena_xdp_set(), which is
> observed on aarch64 with 64KB page size.
> 
>    In file included from ./include/net/inet_sock.h:19,
>       from ./include/net/ip.h:27,
>       from drivers/net/ethernet/amazon/ena/ena_netdev.c:46:
>    drivers/net/ethernet/amazon/ena/ena_netdev.c: In function         \
>    ‘ena_xdp_set’:                                                    \
>    drivers/net/ethernet/amazon/ena/ena_netdev.c:557:6: warning:      \
>    format ‘%lu’                                                      \
>    expects argument of type ‘long unsigned int’, but argument 4      \
>    has type ‘int’                                                    \
>    [-Wformat=] "Failed to set xdp program, the current MTU (%d) is   \
>    larger than the maximum allowed MTU (%lu) while xdp is on",
> 
> Signed-off-by: Gavin Shan <gshan@...hat.com>
> ---
> v2: Make ENA_PAGE_SIZE to be "unsigned long" and verify on aarch64
>     with 4KB or 64KB page size configuration

Applied, thank you.