Re: [PATCH v1 1/5] seq_file: provide an analogue of print_hex_dump()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wednesday, July 09, 2014 at 11:21:08 PM, Joe Perches wrote:
> On Wed, 2014-07-09 at 22:39 +0200, Marek Vasut wrote:
> > The above function looks like almost verbatim copy of print_hex_dump().
> > The only difference I can spot is that it's calling seq_printf() instead
> > of printk(). Can you not instead generalize print_hex_dump() and based
> > on it's invocation, make it call either seq_printf() or printk() ?
> 
> How do you propose doing that given any seq_<foo> call
> requires a struct seq_file * and print_hex_dump needs
> a KERN_<LEVEL>.

I can imagine a rather nasty way, I can't say I would like it myself tho. The 
general idea would be to pull out the entire switch {} statement into a separate 
functions , one for printk() and one for seq_printf() cases. Then, have a 
generic do_hex_dump() call which would take as an argument a pointer to either 
of those functions and a void * to either the seq_file or level . Finally, there 
would have to be a wrapper to call the do_hex_dump() with the correct function 
pointer and it's associated arg.

Nasty? Yes ... Ineffective? Most likely.

> Is there an actual value to it?

Reducing the code duplication, but I wonder if there is a smarter solution than 
the horrid one above.

Best regards,
Marek Vasut
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux