[U-Boot-Users] Should CRC32 be changed to work against address 0 ?
wd at denx.de
Fri Jul 25 18:08:29 CEST 2003
in message <FD2AC9A020DDD51194710008C7089B200BEE221C at dlee17.itg.ti.com> you wrote:
> CRC32 currently will return 0 if its sent buf address of zero. Is this
> proper? My ROM is at zero, so running a CRC32 over it might be a useful
> thing, however, CRC 32 always returns 0 for a start address of zero. Is
> there some reason this needs to be this way? It doesn't seem right to me at
> first glance.
The reason is that the CRC32 code was designed to be used with
user-land applications in a standard OS, where a NULL buffer pointer
is always an indication of some problem.
With U-Boot, this is just a bug. Thanks for pointing it out.
Fixed in my local tree. Will push it to CVS later today.
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
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