PPP and kernel won't be friends

B. James Phillippe (bryan@terran.org)
Wed, 21 Oct 1998 12:33:50 -0700 (PDT)


Hello,

I've had some problems getting ppp-2.3.5 working with linux-2.0.35.
The "kinstall" script replaces most of the includes but skips the ppp.c
file (says it's newer). But when trying to compile with PPP as a module,
it dies with this:

gcc -D__KERNEL__ -I/home/bryan/work/imports/linux-2.0.35-ssl/include -Wall
-Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strength-reduce -pipe
-m486 -malign-loops=2 -malign-jumps=2 -malign-functions=2 -DCPU=586
-DMODULE -DMODVERSIONS -include
/home/bryan/work/imports/linux-2.0.35-ssl/include/linux/modversions.h
-DEXPORT_SYMTAB -c ppp.c
ppp.c: In function `ppp_init_ctrl_blk':
ppp.c:465: structure has no member named `ddinfo'
ppp.c:466: structure has no member named `ddinfo'
ppp.c: In function `ppp_changedmtu':
ppp.c:585: cannot convert to a pointer type
...

And dozens of other errors.

If, however, I replace the ppp.c with the one from ppp-2.3.5 by hand and
flip-flop the comparison below from lt to gt (in ppp.c, line 3076), I get a
clean compile:

/*
* Send a frame to the remote.
*/
#if LINUX_VERSION_CODE < VERSION(2,1,86)
#define FREE_SKB(skb) dev_kfree_skb(skb)
#else
#define FREE_SKB(skb) dev_kfree_skb(skb, FREE_WRITE)
#endif

I have not yet tried the stock 2.0.35 PPP. What is the current official
combination of files for PPP under 2.0.35?

IMHO I sincerely think the FILEVERSION/carbon-based-CVS idea needs to be
replaced with something that will better prevent this ppp vs. linux-kernel
skewage.

Comments?

-bp

--
B. James Phillippe	. bryan@terran.org
UNIX Software Engineer	. http://www.terran.org/~bryan
Member since 1.1.59	. finger:bryan@earth.terran.org
MOTM: Waiting for the DSL to go in :)

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