Re: [PATCH 09/10] netfilter: Add message pragma for deprecated xt_*.h, ipt_*.h.

[Jozsef Kadlecsik]

On Tue, 7 Jan 2025, Szőke Benjamin wrote:

> 2025. 01. 07. 20:39 keltezéssel, Jozsef Kadlecsik írta:
> > On Tue, 7 Jan 2025, egyszeregy@xxxxxxxxxxx wrote:
> > 
> > > From: Benjamin Szőke <egyszeregy@xxxxxxxxxxx>
> > > 
> > > Display information about deprecated xt_*.h, ipt_*.h files
> > > at compile time. Recommended to use header files with
> > > lowercase name format in the future.
> > 
> > I still don't know whether adding the pragmas to notify about header 
> > file deprecation is a good idea.
> 
> Do you have any other ideas how can you display this information to the 
> users/customers, that it is time to stop using the uppercase header 
> files then they shall to use its merged lowercase named files instead in 
> their userspace SW?

Honestly, I don't know. What about Jan's clever idea of having the 
clashing filenames with identical content, i.e.

ipt_ttl.h:
#ifndef _IPT_TTL_H
#define _IPT_TTL_H
#include <linux/netfilter_ipv4/ipt_ttl_common.h>
#endif _IPT_TTL_H

ipt_TTL.h:
#ifndef _IPT_TTL_H
#define _IPT_TTL_H
#include <linux/netfilter_ipv4/ipt_ttl_common.h>
#endif _IPT_TTL_H

Would cloning such a repo on a case-insensitive filesystem produce errors 
or would work just fine?

Best regards,
Jozsef
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