[RFC PATCH v2 net-next] net: ethernet: ti: cpsw: drop TI_DAVINCI_CPDMA config option

From: Grygorii Strashko
Date: Fri Mar 29 2019 - 12:02:58 EST

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Both drivers CPSW and EMAC can't work without CPDMA, hence simplify build
of those drivers by always linking davinci_cpdma and drop TI_DAVINCI_CPDMA
config option.
Note. the davinci_emac driver module was changed to "ti_davinci_emac" to
make build work.

Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx>
---
It's been marked as RFC as I've had to change davinci_emac.c module name
to "ti_davinci_emac". if no objection - I'd like to do the same for ALE module also
and then resend.

v2:
- corrected patch - missed Kconfig changes

drivers/net/ethernet/ti/Kconfig | 12 ------------
drivers/net/ethernet/ti/Makefile | 6 +++---
drivers/net/ethernet/ti/davinci_cpdma.c | 26 -------------------------
3 files changed, 3 insertions(+), 41 deletions(-)

diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index 8b21b40a9fe5..46f253aadcdd 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -20,7 +20,6 @@ config TI_DAVINCI_EMAC
tristate "TI DaVinci EMAC Support"
depends on ARM && ( ARCH_DAVINCI || ARCH_OMAP3 ) || COMPILE_TEST
select TI_DAVINCI_MDIO
- select TI_DAVINCI_CPDMA
select PHYLIB
---help---
This driver supports TI's DaVinci Ethernet .
@@ -38,16 +37,6 @@ config TI_DAVINCI_MDIO
To compile this driver as a module, choose M here: the module
will be called davinci_mdio. This is recommended.

-config TI_DAVINCI_CPDMA
- tristate "TI DaVinci CPDMA Support"
- depends on ARCH_DAVINCI || ARCH_OMAP2PLUS || COMPILE_TEST
- select GENERIC_ALLOCATOR
- ---help---
- This driver supports TI's DaVinci CPDMA dma engine.
-
- To compile this driver as a module, choose M here: the module
- will be called davinci_cpdma. This is recommended.
-
config TI_CPSW_PHY_SEL
bool "TI CPSW Phy mode Selection (DEPRECATED)"
default n
@@ -63,7 +52,6 @@ config TI_CPSW_ALE
config TI_CPSW
tristate "TI CPSW Switch Support"
depends on ARCH_DAVINCI || ARCH_OMAP2PLUS || COMPILE_TEST
- select TI_DAVINCI_CPDMA
select TI_DAVINCI_MDIO
select TI_CPSW_ALE
select MFD_SYSCON
diff --git a/drivers/net/ethernet/ti/Makefile b/drivers/net/ethernet/ti/Makefile
index 0be551de821c..a763e1b27304 100644
--- a/drivers/net/ethernet/ti/Makefile
+++ b/drivers/net/ethernet/ti/Makefile
@@ -8,14 +8,14 @@ obj-$(CONFIG_TI_DAVINCI_EMAC) += cpsw-common.o

obj-$(CONFIG_TLAN) += tlan.o
obj-$(CONFIG_CPMAC) += cpmac.o
-obj-$(CONFIG_TI_DAVINCI_EMAC) += davinci_emac.o
+obj-$(CONFIG_TI_DAVINCI_EMAC) += ti_davinci_emac.o
+ti_davinci_emac-y := davinci_emac.o davinci_cpdma.o
obj-$(CONFIG_TI_DAVINCI_MDIO) += davinci_mdio.o
-obj-$(CONFIG_TI_DAVINCI_CPDMA) += davinci_cpdma.o
obj-$(CONFIG_TI_CPSW_PHY_SEL) += cpsw-phy-sel.o
obj-$(CONFIG_TI_CPSW_ALE) += cpsw_ale.o
obj-$(CONFIG_TI_CPTS_MOD) += cpts.o
obj-$(CONFIG_TI_CPSW) += ti_cpsw.o
-ti_cpsw-y := cpsw.o
+ti_cpsw-y := cpsw.o davinci_cpdma.o

obj-$(CONFIG_TI_KEYSTONE_NETCP) += keystone_netcp.o
keystone_netcp-y := netcp_core.o
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index 4236dcdd5634..b8df342ba217 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -527,7 +527,6 @@ struct cpdma_ctlr *cpdma_ctlr_create(struct cpdma_params *params)
ctlr->num_chan = CPDMA_MAX_CHANNELS;
return ctlr;
}
-EXPORT_SYMBOL_GPL(cpdma_ctlr_create);

int cpdma_ctlr_start(struct cpdma_ctlr *ctlr)
{
@@ -588,7 +587,6 @@ int cpdma_ctlr_start(struct cpdma_ctlr *ctlr)
spin_unlock_irqrestore(&ctlr->lock, flags);
return 0;
}
-EXPORT_SYMBOL_GPL(cpdma_ctlr_start);

int cpdma_ctlr_stop(struct cpdma_ctlr *ctlr)
{
@@ -621,7 +619,6 @@ int cpdma_ctlr_stop(struct cpdma_ctlr *ctlr)
spin_unlock_irqrestore(&ctlr->lock, flags);
return 0;
}
-EXPORT_SYMBOL_GPL(cpdma_ctlr_stop);

int cpdma_ctlr_destroy(struct cpdma_ctlr *ctlr)
{
@@ -639,7 +636,6 @@ int cpdma_ctlr_destroy(struct cpdma_ctlr *ctlr)
cpdma_desc_pool_destroy(ctlr);
return ret;
}
-EXPORT_SYMBOL_GPL(cpdma_ctlr_destroy);

int cpdma_ctlr_int_ctrl(struct cpdma_ctlr *ctlr, bool enable)
{
@@ -660,25 +656,21 @@ int cpdma_ctlr_int_ctrl(struct cpdma_ctlr *ctlr, bool enable)
spin_unlock_irqrestore(&ctlr->lock, flags);
return 0;
}
-EXPORT_SYMBOL_GPL(cpdma_ctlr_int_ctrl);

void cpdma_ctlr_eoi(struct cpdma_ctlr *ctlr, u32 value)
{
dma_reg_write(ctlr, CPDMA_MACEOIVECTOR, value);
}
-EXPORT_SYMBOL_GPL(cpdma_ctlr_eoi);

u32 cpdma_ctrl_rxchs_state(struct cpdma_ctlr *ctlr)
{
return dma_reg_read(ctlr, CPDMA_RXINTSTATMASKED);
}
-EXPORT_SYMBOL_GPL(cpdma_ctrl_rxchs_state);

u32 cpdma_ctrl_txchs_state(struct cpdma_ctlr *ctlr)
{
return dma_reg_read(ctlr, CPDMA_TXINTSTATMASKED);
}
-EXPORT_SYMBOL_GPL(cpdma_ctrl_txchs_state);

static void cpdma_chan_set_descs(struct cpdma_ctlr *ctlr,
int rx, int desc_num,
@@ -774,7 +766,6 @@ int cpdma_chan_split_pool(struct cpdma_ctlr *ctlr)

return 0;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_split_pool);

/* cpdma_chan_set_weight - set weight of a channel in percentage.
@@ -807,7 +798,6 @@ int cpdma_chan_set_weight(struct cpdma_chan *ch, int weight)
spin_unlock_irqrestore(&ctlr->lock, flags);
return ret;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_set_weight);

/* cpdma_chan_get_min_rate - get minimum allowed rate for channel
* Should be called before cpdma_chan_set_rate.
@@ -822,7 +812,6 @@ u32 cpdma_chan_get_min_rate(struct cpdma_ctlr *ctlr)

return DIV_ROUND_UP(divident, divisor);
}
-EXPORT_SYMBOL_GPL(cpdma_chan_get_min_rate);

/* cpdma_chan_set_rate - limits bandwidth for transmit channel.
* The bandwidth * limited channels have to be in order beginning from lowest.
@@ -867,7 +856,6 @@ int cpdma_chan_set_rate(struct cpdma_chan *ch, u32 rate)
spin_unlock_irqrestore(&ctlr->lock, flags);
return ret;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_set_rate);

u32 cpdma_chan_get_rate(struct cpdma_chan *ch)
{
@@ -880,7 +868,6 @@ u32 cpdma_chan_get_rate(struct cpdma_chan *ch)

return rate;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_get_rate);

struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num,
cpdma_handler_fn handler, int rx_type)
@@ -940,7 +927,6 @@ struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num,
spin_unlock_irqrestore(&ctlr->lock, flags);
return chan;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_create);

int cpdma_chan_get_rx_buf_num(struct cpdma_chan *chan)
{
@@ -953,7 +939,6 @@ int cpdma_chan_get_rx_buf_num(struct cpdma_chan *chan)

return desc_num;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_get_rx_buf_num);

int cpdma_chan_destroy(struct cpdma_chan *chan)
{
@@ -975,7 +960,6 @@ int cpdma_chan_destroy(struct cpdma_chan *chan)
spin_unlock_irqrestore(&ctlr->lock, flags);
return 0;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_destroy);

int cpdma_chan_get_stats(struct cpdma_chan *chan,
struct cpdma_chan_stats *stats)
@@ -988,7 +972,6 @@ int cpdma_chan_get_stats(struct cpdma_chan *chan,
spin_unlock_irqrestore(&chan->lock, flags);
return 0;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_get_stats);

static void __cpdma_chan_submit(struct cpdma_chan *chan,
struct cpdma_desc __iomem *desc)
@@ -1095,7 +1078,6 @@ int cpdma_chan_submit(struct cpdma_chan *chan, void *token, void *data,
spin_unlock_irqrestore(&chan->lock, flags);
return ret;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_submit);

bool cpdma_check_free_tx_desc(struct cpdma_chan *chan)
{
@@ -1110,7 +1092,6 @@ bool cpdma_check_free_tx_desc(struct cpdma_chan *chan)
spin_unlock_irqrestore(&chan->lock, flags);
return free_tx_desc;
}
-EXPORT_SYMBOL_GPL(cpdma_check_free_tx_desc);

static void __cpdma_chan_free(struct cpdma_chan *chan,
struct cpdma_desc __iomem *desc,
@@ -1204,7 +1185,6 @@ int cpdma_chan_process(struct cpdma_chan *chan, int quota)
}
return used;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_process);

int cpdma_chan_start(struct cpdma_chan *chan)
{
@@ -1224,7 +1204,6 @@ int cpdma_chan_start(struct cpdma_chan *chan)

return 0;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_start);

int cpdma_chan_stop(struct cpdma_chan *chan)
{
@@ -1287,7 +1266,6 @@ int cpdma_chan_stop(struct cpdma_chan *chan)
spin_unlock_irqrestore(&chan->lock, flags);
return 0;
}
-EXPORT_SYMBOL_GPL(cpdma_chan_stop);

int cpdma_chan_int_ctrl(struct cpdma_chan *chan, bool enable)
{
@@ -1329,25 +1307,21 @@ int cpdma_control_set(struct cpdma_ctlr *ctlr, int control, int value)

return ret;
}
-EXPORT_SYMBOL_GPL(cpdma_control_set);

int cpdma_get_num_rx_descs(struct cpdma_ctlr *ctlr)
{
return ctlr->num_rx_desc;
}
-EXPORT_SYMBOL_GPL(cpdma_get_num_rx_descs);

int cpdma_get_num_tx_descs(struct cpdma_ctlr *ctlr)
{
return ctlr->num_tx_desc;
}
-EXPORT_SYMBOL_GPL(cpdma_get_num_tx_descs);

void cpdma_set_num_rx_descs(struct cpdma_ctlr *ctlr, int num_rx_desc)
{
ctlr->num_rx_desc = num_rx_desc;
ctlr->num_tx_desc = ctlr->pool->num_desc - ctlr->num_rx_desc;
}
-EXPORT_SYMBOL_GPL(cpdma_set_num_rx_descs);

MODULE_LICENSE("GPL");
--
2.17.1

Next message: Greg Kroah-Hartman: "Re: [PATCH] staging: android: ion: refactory ion_alloc for kernel driver use"
Previous message: Jann Horn: "Re: [PATCH 2/2] x86: fix __user annotations"
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