Re: [PATCH net-next V2] net: ks8851: Fix mixed module/builtin build

From
Arnd Bergmann <arnd@kernel.org>
Date
2021-01-16 19:27:46
Reply to
Marek Vasut, 2021-01-16
On Sat, Jan 16, 2021 at 6:56 PM Marek Vasut [off-list ref] wrote:
On 1/16/21 6:04 PM, Arnd Bergmann wrote:
quoted
On Sat, Jan 16, 2021 at 5:48 PM Marek Vasut [off-list ref] wrote:
quoted
I don't really like this version, as it does not actually solve the problem of
linking the same object file into both vmlinux and a loadable module, which
can have all kinds of side-effects besides that link failure you saw.

If you want to avoid exporting all those symbols, a simpler hack would
be to '#include "ks8851_common.c" from each of the two files, which
then always duplicates the contents (even when both are built-in), but
at least builds the file the correct way.
That's the same as V1, isn't it ?
Ah, I had not actually looked at the original submission, but yes, that
was slightly better than v2, provided you make all symbols static to
avoid the new link error.

I still think that having three modules and exporting the symbols from
the common part as Heiner Kallweit suggested would be the best
way to do it.

        Arnd
Thread (8 messages) 8 messages, 4 authors, last reply 2021-01-17
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