Re: [RFC PATCH] bgmac: Fix build error seen if BCM47XX is not configured

From: RafaÅ MiÅecki
Date: Wed Apr 15 2015 - 16:22:06 EST


On 15 April 2015 at 22:05, Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
> arm:allmodconfig fails to build as follows since ARCH_BCM_5301X
> is configured but not BCM47XX.
>
> drivers/net/ethernet/broadcom/bgmac.c: In function 'bgmac_probe':
> drivers/net/ethernet/broadcom/bgmac.c:1643:2: error:
> implicit declaration of function 'bcm47xx_nvram_getenv'
>
> Fixes: fc300dc3733f ("bgmac: allow enabling on ARCH_BCM_5301X")
> Cc: RafaÅ MiÅecki <zajec5@xxxxxxxxx>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> ---
> Seen in today's upstream kernel.
>
> I don't like this fix too much (I think it is quite kludgy),
> so I marked it RFC (and please don't beat the messenger ;-).

Ooh great, I totally forgot about this :|

The problem is that fc300dc (bgmac: allow enabling on ARCH_BCM_5301X)
[0] shouldn't really be sent (by me) in the first place. This is
because it depends on 138173d (MIPS: BCM47xx: Move NVRAM header to the
include/linux/.) [1] which isn't in Linus's tree yet.

So there are two solutions:
1) Revert fc300dc, wait for 138173d and re-apply fc300dc
2) Wait for 138173d with this build breakage

I guess the decisions depends on
a) time needed for David to revert fc300dc & send pull request
vs.
b) time needed for Ralf to send pull request

David, Ralf, what do you think about this?

Sorry for causing this problem :|

[0] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fc300dc3733fdc328e6e10c7b8379b60c26cd648
[1] http://git.linux-mips.org/cgit/ralf/upstream-sfr.git/commit/?id=138173d4e826587da66c7d321da1a91283222536
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