linux-kernel - Re: [PATCH 08/11] ARM: ixp4xx: fix {in,out}s{bwl} data types

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Date:	Mon, 16 Feb 2015 15:16:46 +0100
From:	khalasa@...p.pl (Krzysztof Hałasa)
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	arm@...nel.org, Imre Kaloz <kaloz@...nwrt.org>
Subject: Re: [PATCH 08/11] ARM: ixp4xx: fix {in,out}s{bwl} data types

Arnd Bergmann <arnd@...db.de> writes:

> Most platforms use void pointer arguments in these functions, but
> ixp4xx does not, which triggers lots of warnings in device drivers like:
>
> net/ethernet/8390/ne2k-pci.c: In function 'ne2k_pci_get_8390_hdr':
> net/ethernet/8390/ne2k-pci.c:503:3: warning: passing argument 2 of 'insw' from incompatible pointer type
>    insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1);
>    ^
> In file included from include/asm/io.h:214:0,
>                  from /git/arm-soc/include/linux/io.h:22,
>                  from /git/arm-soc/include/linux/pci.h:31,
>                  from net/ethernet/8390/ne2k-pci.c:48:
> mach-ixp4xx/include/mach/io.h:316:91: note: expected 'u16 *' but argument is of type 'struct e8390_pkt_hdr *'
>  static inline void insw(u32 io_addr, u16 *vaddr, u32 count)
>
> Fixing the drivers seems hopeless, so this changes the ixp4xx code
> to do the same as the others to avoid the warnings.

Acked-by: Krzysztof Halasa <khalasa@...p.pl>
-- 
Krzysztof Halasa

Research Institute for Automation and Measurements PIAP
Al. Jerozolimskie 202, 02-486 Warsaw, Poland
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