[PATCH 2.6.13-rc1 01/10] IOCHK interface for I/O error handling/detecting

[YOSHIFUJI Hideaki / 吉藤英明]

In article <42CB63B2.6000505 at jp.fujitsu.com> (at Wed, 06 Jul 2005 13:53:06 +0900), Hidetoshi Seto <seto.hidetoshi at jp.fujitsu.com> says:

> Index: linux-2.6.13-rc1/lib/iomap.c
> ===================================================================
> --- linux-2.6.13-rc1.orig/lib/iomap.c
> +++ linux-2.6.13-rc1/lib/iomap.c
> @@ -230,3 +230,9 @@ void pci_iounmap(struct pci_dev *dev, vo
>   }
>   EXPORT_SYMBOL(pci_iomap);
>   EXPORT_SYMBOL(pci_iounmap);
> +
> +#ifndef HAVE_ARCH_IOMAP_CHECK
> +/* Since generic funcs are inlined and defined in header, just export */
> +EXPORT_SYMBOL(iochk_clear);
> +EXPORT_SYMBOL(iochk_read);
> +#endif
> Index: linux-2.6.13-rc1/include/asm-generic/iomap.h
> ===================================================================
> --- linux-2.6.13-rc1.orig/include/asm-generic/iomap.h
> +++ linux-2.6.13-rc1/include/asm-generic/iomap.h
:
> + */
> +#ifdef HAVE_ARCH_IOMAP_CHECK
> +extern void iochk_init(void);
> +extern void iochk_clear(iocookie *cookie, struct pci_dev *dev);
> +extern int iochk_read(iocookie *cookie);
> +#else
> +static inline void iochk_init(void) {}
> +static inline void iochk_clear(iocookie *cookie, struct pci_dev *dev) {}
> +static inline int iochk_read(iocookie *cookie) { return 0; }
> +#endif
> +
>   #endif

It looks strange to me.
You cannot export "static inline" functions.
You can export iochk_{init,clear,read} only
if HAVE_ARCH_IOMAP_CHECK is defined.

--yoshfuji