Re: memcpy in 2.2.19

Horst von Brand (vonbrand@inf.utfsm.cl)
Fri, 30 Mar 2001 16:01:22 -0400

Keith Owens <kaos@ocs.com.au> said:
> On Fri, 30 Mar 2001 08:04:17 +0100,
> "Chris Funderburg" <chris@directcommunications.net> wrote:
> >drivers/scsi/scsi.a(aic7xxx.o): In function `aic7xxx_load_seeprom':
> >aic7xxx.o(.text+0x116bf): undefined reference to `memcpy'

> Under some circumstances gcc will generate an internal call to
> memcpy(). Alas this bypasses the pre-processor so memcpy is not
> converted to the kernel's internal memcpy code. The cause is normally
> a structure assignment, probably this line.
>
> struct seeprom_config *sc = (struct seeprom_config *) scarray;

Just a pointer initialization.

[...]

> The other possibility I can see is
>
> p->sc = *sc;
>
> try
>
> memcpy(&(p->sc), sc, sizeof(*sc));

-- 
Dr. Horst H. von Brand                       mailto:vonbrand@inf.utfsm.cl
Departamento de Informatica                     Fono: +56 32 654431
Universidad Tecnica Federico Santa Maria              +56 32 654239
Casilla 110-V, Valparaiso, Chile                Fax:  +56 32 797513
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