Hi Paul,
On Mon, Sep 28, 2015 at 9:51 PM, Paul Gortmaker
<paul.gortmaker@xxxxxxxxxxxxx> wrote:
In a previous merge window, we made changes to allow better
delineation between modular and non-modular code in commit
0fd972a7d91d6e15393c449492a04d94c0b89351 ("module: relocate module_init
from init.h to module.h"). This allows us to now ensure module code
looks modular and non-modular code does not accidentally look modular
just to avoid suffering build breakage.
Here we target code that is, by nature of their Makefile and/or
Kconfig settings, only available to be built-in, but implicitly
presenting itself as being possibly modular by way of using modular
headers, macros, and functions.
The goal here is to remove that illusion of modularity from these
files, but in a way that leaves the actual runtime unchanged.
In doing so, we remove code that has never been tested and adds
no value to the tree. And we continue the process of expecting a
level of consistency between the Kconfig/Makefile of code and the
code in use itself.
Fortuntately the net subsystem has relatively few instances, given
the overall amount of code and drivers it contains. For comparison
there are over 300 instances tree wide, resulting in a possible net
removal of on the order of 5000 lines of unused code.
Build tested on net-next 34c2d9fb0498 on m68k, since that is the arch
where the three ethernet drivers changed here are available.
net/ethernet: make amd/hplance.c driver explicitly non-modular
net/ethernet: make 8390/mac8390.c driver explicitly non-modular
net/ethernet: make apple/macmace.c driver explicitly non-modular
Why did you choose this approach?
What about changing the "bool"s to "tristate"s in Kconfig instead?
I gave it a try, and with some small changes the three m68k ethernet drivers
build fine as modular drivers. I can send patches if you like it.
Thanks!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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