[PATCH] net: NET_VENDOR_LITEX should depend on LITEX

LiteX Ethernet devices are only present on LiteX SoCs.  Hence add a
dependency on LITEX, to prevent asking the user about drivers for these
devices when configuring a kernel without LiteX SoC Builder support.

Fixes: ee7da21ac4c3be1f ("net: Add driver for LiteX's LiteETH network interface")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/net/ethernet/litex/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/litex/Kconfig b/drivers/net/ethernet/litex/Kconfig
index 265dba414b41ec22..bfad1df1368866d3 100644
--- a/drivers/net/ethernet/litex/Kconfig
+++ b/drivers/net/ethernet/litex/Kconfig

@@ -5,6 +5,7 @@
 config NET_VENDOR_LITEX
 	bool "LiteX devices"
 	default y
+	depends on LITEX || COMPILE_TEST
 	help
 	  If you have a network (Ethernet) card belonging to this class, say Y.
 

-- 
2.25.1

On Tue, 31 Aug 2021 at 13:21, Geert Uytterhoeven
[off-list ref] wrote:

LiteX Ethernet devices are only present on LiteX SoCs.  Hence add a
dependency on LITEX, to prevent asking the user about drivers for these
devices when configuring a kernel without LiteX SoC Builder support.

nak.

They can be present on any soc that uses them. We have an example in
mainline already; microwatt uses liteeth but is not a litex soc.

Cheers,

Joel

Hi Joel,

On Tue, Aug 31, 2021 at 3:37 PM Joel Stanley [off-list ref] wrote:

On Tue, 31 Aug 2021 at 13:21, Geert Uytterhoeven
[off-list ref] wrote:

quoted

LiteX Ethernet devices are only present on LiteX SoCs.  Hence add a
dependency on LITEX, to prevent asking the user about drivers for these
devices when configuring a kernel without LiteX SoC Builder support.

nak.

They can be present on any soc that uses them. We have an example in
mainline already; microwatt uses liteeth but is not a litex soc.

But liiteeth.c uses <linux/litex.h>?
And https://github.com/enjoy-digital/litex can be used with a microwatt
CPU core?

The idea behind the LITEX config symbol was to gate off any driver
using LiteX interfaces.

quoted

Fixes: ee7da21ac4c3be1f ("net: Add driver for LiteX's LiteETH network interface")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

quoted

--- a/drivers/net/ethernet/litex/Kconfig
+++ b/drivers/net/ethernet/litex/Kconfig

@@ -5,6 +5,7 @@
 config NET_VENDOR_LITEX
        bool "LiteX devices"
        default y
+       depends on LITEX || COMPILE_TEST
        help
          If you have a network (Ethernet) card belonging to this class, say Y.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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