[U-Boot] [PATCH] mtd: nand: revive "nand scrub" command

Scott Wood scottwood at freescale.com
Thu Dec 11 22:43:11 CET 2014


On Thu, 2014-12-11 at 22:37 +0100, Marek Vasut wrote:
> On Thursday, December 11, 2014 at 09:37:10 PM, Scott Wood wrote:
> > On Thu, 2014-12-11 at 19:49 +0900, Masahiro Yamada wrote:
> > > Since commit ff94bc40af34 (mtd, ubi, ubifs: resync with Linux-3.14),
> > > the "nand scrub" command has not been working.
> > > 
> > > The scrub is a U-Boot extension and we have to modify nand_base.c
> > > that originates in Linux.
> > > 
> > > Mark the code with #ifdef __UBOOT__ so we will never accidentally
> > > drop it when we re-sync the NAND framework with Linux in the future.
> > 
> > No more "#ifdef __UBOOT__" please.
> 
> Do you happen to have a helpful suggestion how to clearly mark those bits of 
> code then please ?

This was already discussed. :-)

See the archives for why I think this is bad.

> > Instead, never again do a "start
> > from scratch" resync the way that the above commit was done.
> 
> This was already discussed, no need to revive this topic here now.

Sorry, but these patches fixing breakages that resulted from that merge
demonstrate that there is a need to revive it, if there's anyone that
still thinks it's a good idea -- Heiko seemed to be in agreement that
there's no need to do that for future syncs:
http://lists.denx.de/pipermail/u-boot/2014-November/194256.html

-Scott




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