Robert P. J. Day wrote:
[...]
>> > drivers/scsi/arm/acornscsi.c:70:#undef CONFIG_SCSI_ACORNSCSI_LINK
>> > drivers/scsi/arm/acornscsi.c:169:#ifdef CONFIG_SCSI_ACORNSCSI_LINK
[...]
> p.s. "CONFIG_" prefix aside, i would think it's also a bit yucky to
> be checking for the definition of a preprocessor symbol that you've
> already hardcoded out of existence in the same source file. :-)
These are basically #if 0 ... #endif blocks with an activation switch
conveniently placed at the top of the .c file. In the quoted example,
the effect of the activation switch is also documented by a comment.
Of course we should restrain ourselves WRT the use of #if 0 ... #endif
blocks in in-tree code, but sometimes they have sensible applications.
--
Stefan Richter
-=====-=-=== -=-= ---==
http://arcgraph.de/sr/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
