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From: Keith Owens <kaos@ocs.com.au>
To: "Chris Funderburg" <chris@directcommunications.net>
Cc: "Linux-Kernel" <linux-kernel@vger.kernel.org>,
	"Justin T. Gibbs" <gibbs@scsiguy.com>
Subject: Re: memcpy in 2.2.19
Date: Thu, 29 Mar 2001 23:28:37 -0800	[thread overview]
Message-ID: <7717.985937317@ocs3.ocs-net> (raw)
In-Reply-To: Your message of "Fri, 30 Mar 2001 08:04:17 +0100." <CHEEIAEEAIFDOCGJIAKPOEDCCJAA.chris@directcommunications.net>

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;

Try this replacement

  struct seeprom_config *sc;
  memcpy(sc, scarray, sizeof(*sc));

The other possibility I can see is

    p->sc = *sc;

try

    memcpy(&(p->sc), sc, sizeof(*sc));


  reply	other threads:[~2001-03-30  7:29 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-03-30  7:04 memcpy in 2.2.19 Chris Funderburg
2001-03-30  7:28 ` Keith Owens [this message]
2001-03-30 20:01   ` Horst von Brand
2001-03-30 10:00 ` Jeff Garzik
2001-04-02  7:32   ` Chris Funderburg

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