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Date: Thu, 16 Mar 2017 20:13:23 -0700 (PDT) From: David Miller <davem@...emloft.net> To: arnd@...db.de Cc: grygorii.strashko@...com, tglx@...utronix.de, richardcochran@...il.com, w-kwok2@...com, nicolas.pitre@...aro.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [RESEND PATCH -net] cpsw/netcp: work around reverse cpts dependency From: Arnd Bergmann <arnd@...db.de> Date: Mon, 13 Mar 2017 17:59:04 +0100 > The dependency is reversed: cpsw and netcp call into cpts, > but cpts depends on the other two in Kconfig. This can lead > to cpts being a loadable module and its callers built-in: > > drivers/net/ethernet/ti/cpsw.o: In function `cpsw_remove': > cpsw.c:(.text.cpsw_remove+0xd0): undefined reference to `cpts_release' > drivers/net/ethernet/ti/cpsw.o: In function `cpsw_rx_handler': > cpsw.c:(.text.cpsw_rx_handler+0x2dc): undefined reference to `cpts_rx_timestamp' > drivers/net/ethernet/ti/cpsw.o: In function `cpsw_tx_handler': > cpsw.c:(.text.cpsw_tx_handler+0x7c): undefined reference to `cpts_tx_timestamp' > drivers/net/ethernet/ti/cpsw.o: In function `cpsw_ndo_stop': > > As a workaround, I'm introducing another Kconfig symbol to > control the compilation of cpts, while making the actual > module controlled by a silent symbol that is =y when necessary. > > Fixes: 6246168b4a38 ("net: ethernet: ti: netcp: add support of cpts") > Signed-off-by: Arnd Bergmann <arnd@...db.de> > Reviewed-by: Grygorii Strashko <grygorii.strashko@...com> > --- > Originally submitted on Dec 16, still needed for v4.10 and v4.11-rc2 I'm fine with this change, but please keep the user visible Kconfig symbol name the same, use the new name for the internal one. I know that this means you have to make more changes elsewhere in order to accomplish this.
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