linux-kernel - Re: [PATCH net-next] net: sunhme: move asm includes to below linux includes

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Date:   Wed, 5 Apr 2023 13:34:11 -0400
From:   Sean Anderson <seanga2@...il.com>
To:     Simon Horman <horms@...nel.org>, Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        kernel test robot <lkp@...el.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Linux Memory Management List <linux-mm@...ck.org>,
        linux-m68k@...ts.linux-m68k.org
Subject: Re: [PATCH net-next] net: sunhme: move asm includes to below linux
 includes

On 4/5/23 13:29, Simon Horman wrote:
> A recent rearrangement of includes has lead to a problem on m68k
> as flagged by the kernel test robot.
> 
> Resolve this by moving the block asm includes to below linux includes.
> A side effect i that non-Sparc asm includes are now immediately
> before Sparc asm includes, which seems nice.
> 
> Using sparse v0.6.4 I was able to reproduce this problem as follows
> using the config provided by the kernel test robot:
> 
> $ wget https://download.01.org/0day-ci/archive/20230404/202304041748.0sQc4K4l-lkp@intel.com/config
> $ cp config .config
> $ make ARCH=m68k oldconfig
> $ make ARCH=m68k C=2 M=drivers/net/ethernet/sun
>     CC [M]  drivers/net/ethernet/sun/sunhme.o
>   In file included from drivers/net/ethernet/sun/sunhme.c:19:
>   ./arch/m68k/include/asm/irq.h:78:11: error: expected ‘;’ before ‘void’
>      78 | asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
>         |           ^~~~~
>         |           ;
>   ./arch/m68k/include/asm/irq.h:78:40: warning: ‘struct pt_regs’ declared inside parameter list will not be visible outside of this definition or declaration
>      78 | asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
>         |                                        ^~~~~~~

This seems like a problem with the header. m68k's asm/irq.h should include linux/interrupt.h before its declarations.

--Sean

> Compile tested only.
> 
> Fixes: 1ff4f42aef60 ("net: sunhme: Alphabetize includes")
> Reported-by: kernel test robot <lkp@...el.com>
> Link: https://lore.kernel.org/oe-kbuild-all/202304041748.0sQc4K4l-lkp@intel.com/
> Signed-off-by: Simon Horman <horms@...nel.org>
> ---
>   drivers/net/ethernet/sun/sunhme.c | 7 ++++---
>   1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c
> index ec85aef35bf9..b93613cd1994 100644
> --- a/drivers/net/ethernet/sun/sunhme.c
> +++ b/drivers/net/ethernet/sun/sunhme.c
> @@ -14,9 +14,6 @@
>    *     argument : macaddr=0x00,0x10,0x20,0x30,0x40,0x50
>    */
>   
> -#include <asm/byteorder.h>
> -#include <asm/dma.h>
> -#include <asm/irq.h>
>   #include <linux/bitops.h>
>   #include <linux/crc32.h>
>   #include <linux/delay.h>
> @@ -45,6 +42,10 @@
>   #include <linux/types.h>
>   #include <linux/uaccess.h>
>   
> +#include <asm/byteorder.h>
> +#include <asm/dma.h>
> +#include <asm/irq.h>
> +
>   #ifdef CONFIG_SPARC
>   #include <asm/auxio.h>
>   #include <asm/idprom.h>
>