linux-kernel - Re: [PATCH net-next v2 2/3] net: ethernet: rmnet: Support for downlink MAPv5 checksum offload

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Message-ID: <CAMuHMdUTVaRSEt2a_sJSEYX0TCH73xspSXkd--=913dpeSzv0Q@mail.gmail.com>
Date:   Tue, 23 Feb 2021 11:52:24 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     kernel test robot <lkp@...el.com>
Cc:     Sharath Chandra Vurukala <sharathv@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, elder@...nel.org,
        cpratapa@...eaurora.org, subashab@...eaurora.org,
        netdev <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        kbuild-all@...ts.01.org
Subject: Re: [PATCH net-next v2 2/3] net: ethernet: rmnet: Support for
 downlink MAPv5 checksum offload

Hi Kernel Test Robot,

On Mon, Feb 22, 2021 at 10:02 PM kernel test robot <lkp@...el.com> wrote:
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on net-next/master]
>
> url:    https://github.com/0day-ci/linux/commits/Sharath-Chandra-Vurukala/net-qualcomm-rmnet-Enable-Mapv5/20210223-010109
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git d310ec03a34e92a77302edb804f7d68ee4f01ba0
> config: m68k-allmodconfig (attached as .config)
> compiler: m68k-linux-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://github.com/0day-ci/linux/commit/a96da20e1028049cc3824b52bb5293376c0868ce
>         git remote add linux-review https://github.com/0day-ci/linux
>         git fetch --no-tags linux-review Sharath-Chandra-Vurukala/net-qualcomm-rmnet-Enable-Mapv5/20210223-010109
>         git checkout a96da20e1028049cc3824b52bb5293376c0868ce
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
>
> All errors (new ones prefixed by >>):
>
>    In file included from include/linux/kernel.h:10,
>                     from include/linux/list.h:9,
>                     from include/linux/timer.h:5,
>                     from include/linux/netdevice.h:24,
>                     from drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c:7:
>    include/linux/scatterlist.h: In function 'sg_set_buf':
>    arch/m68k/include/asm/page_mm.h:174:49: warning: ordered comparison of pointer with null pointer [-Wextra]
>      174 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
>          |                                                 ^~
>    include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
>       78 | # define unlikely(x) __builtin_expect(!!(x), 0)
>          |                                          ^
>    include/linux/scatterlist.h:137:2: note: in expansion of macro 'BUG_ON'
>      137 |  BUG_ON(!virt_addr_valid(buf));
>          |  ^~~~~~
>    include/linux/scatterlist.h:137:10: note: in expansion of macro 'virt_addr_valid'
>      137 |  BUG_ON(!virt_addr_valid(buf));
>          |          ^~~~~~~~~~~~~~~

Note that the warning is unrelated. I've sent a patch to quiten it.
[PATCH] m68k: Fix virt_addr_valid() W=1 compiler warnings
https://lore.kernel.org/linux-m68k/20210223104957.2209219-1-geert@linux-m68k.org/

>    In file included from drivers/net/ethernet/qualcomm/rmnet/rmnet_map.h:7,
>                     from drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c:14:
>    include/linux/if_rmnet.h: At top level:
> >> include/linux/if_rmnet.h:66:2: error: expected ',', ';' or '}' before 'u8'
>       66 |  u8  hw_reserved:7;
>          |  ^~

That's a real one, though.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds