[PATCH 11/15] dmaengine: dw: platform: use field-by-field initialization

From: Mans Rullgard
Date: Sun Jan 24 2016 - 14:25:53 EST


From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

This is a simple stylish change that allows to use less lines of code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
I'm a little ambivalent on this one. While the patch is correct as such,
the change means that if struct dw_dma_slave gains new members in future,
these will not be initialised. This added fragility seems an unnecesary
price to pay for saving one line of code.
---
drivers/dma/dw/platform.c | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c
index 808bafdd7d48..0fd5a49311a2 100644
--- a/drivers/dma/dw/platform.c
+++ b/drivers/dma/dw/platform.c
@@ -32,14 +32,13 @@ static struct dma_chan *dw_dma_of_xlate(struct of_phandle_args *dma_spec,
struct of_dma *ofdma)
{
struct dw_dma *dw = ofdma->of_dma_data;
- struct dw_dma_slave slave = {
- .dma_dev = dw->dma.dev,
- };
+ struct dw_dma_slave slave;
dma_cap_mask_t cap;

if (dma_spec->args_count != 3)
return NULL;

+ slave.dma_dev = dw->dma.dev;
slave.src_id = dma_spec->args[0];
slave.dst_id = dma_spec->args[0];
slave.m_master = dma_spec->args[1];
@@ -62,13 +61,13 @@ static struct dma_chan *dw_dma_of_xlate(struct of_phandle_args *dma_spec,
static bool dw_dma_acpi_filter(struct dma_chan *chan, void *param)
{
struct acpi_dma_spec *dma_spec = param;
- struct dw_dma_slave slave = {
- .dma_dev = dma_spec->dev,
- .src_id = dma_spec->slave_id,
- .dst_id = dma_spec->slave_id,
- .m_master = 1,
- .p_master = 0,
- };
+ struct dw_dma_slave slave;
+
+ slave.dma_dev = dma_spec->dev;
+ slave.src_id = dma_spec->slave_id;
+ slave.dst_id = dma_spec->slave_id;
+ slave.m_master = 1;
+ slave.p_master = 0;

return dw_dma_filter(chan, &slave);
}
--
2.7.0