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[PATCH net-next] net: dsa: LAN9303: add I2C dependency

Started byArnd Bergmann <arnd@arndb.de>
First post2017-04-21 20:30 +0200
Last post2017-04-21 21:40 +0200
Articles 2 — 2 participants

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  [PATCH net-next] net: dsa: LAN9303: add I2C dependency Arnd Bergmann <arnd@arndb.de> - 2017-04-21 20:30 +0200
    Re: [PATCH net-next] net: dsa: LAN9303: add I2C dependency David Miller <davem@davemloft.net> - 2017-04-21 21:40 +0200

#1628437 — [PATCH net-next] net: dsa: LAN9303: add I2C dependency

FromArnd Bergmann <arnd@arndb.de>
Date2017-04-21 20:30 +0200
Subject[PATCH net-next] net: dsa: LAN9303: add I2C dependency
Message-ID<tyLtF-Ix-37@gated-at.bofh.it>
With CONFIG_I2C=m and NET_DSA_SMSC_LAN9303=y, we run into a link error:

drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_byte_reg_read':
regmap-i2c.c:(.text.regmap_smbus_byte_reg_read+0x18): undefined reference to `i2c_smbus_read_byte_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_byte_reg_write':
regmap-i2c.c:(.text.regmap_smbus_byte_reg_write+0x18): undefined reference to `i2c_smbus_write_byte_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_reg_read':
regmap-i2c.c:(.text.regmap_smbus_word_reg_read+0x18): undefined reference to `i2c_smbus_read_word_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_read_swapped':
regmap-i2c.c:(.text.regmap_smbus_word_read_swapped+0x18): undefined reference to `i2c_smbus_read_word_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_write_swapped':

This adds a Kconfig dependency to avoid the broken configuration.

Fixes: be4e119f9914 ("net: dsa: LAN9303: add I2C managed mode support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/net/dsa/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index 131a5b1cbfc8..862ee22303c2 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -59,7 +59,7 @@ config NET_DSA_SMSC_LAN9303
 
 config NET_DSA_SMSC_LAN9303_I2C
 	tristate "SMSC/Microchip LAN9303 3-ports 10/100 ethernet switch in I2C managed mode"
-	depends on NET_DSA
+	depends on NET_DSA && I2C
 	select NET_DSA_SMSC_LAN9303
 	select REGMAP_I2C
 	---help---
-- 
2.9.0

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#1628553

FromDavid Miller <davem@davemloft.net>
Date2017-04-21 21:40 +0200
Message-ID<tyMzo-1ke-19@gated-at.bofh.it>
In reply to#1628437
From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 21 Apr 2017 18:22:40 +0200

> With CONFIG_I2C=m and NET_DSA_SMSC_LAN9303=y, we run into a link error:
> 
> drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_byte_reg_read':
> regmap-i2c.c:(.text.regmap_smbus_byte_reg_read+0x18): undefined reference to `i2c_smbus_read_byte_data'
> drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_byte_reg_write':
> regmap-i2c.c:(.text.regmap_smbus_byte_reg_write+0x18): undefined reference to `i2c_smbus_write_byte_data'
> drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_reg_read':
> regmap-i2c.c:(.text.regmap_smbus_word_reg_read+0x18): undefined reference to `i2c_smbus_read_word_data'
> drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_read_swapped':
> regmap-i2c.c:(.text.regmap_smbus_word_read_swapped+0x18): undefined reference to `i2c_smbus_read_word_data'
> drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_write_swapped':
> 
> This adds a Kconfig dependency to avoid the broken configuration.
> 
> Fixes: be4e119f9914 ("net: dsa: LAN9303: add I2C managed mode support")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Applied, thanks.

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