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Subject[PATCH v3 5/7] fpga-mgr: wrap the state() op
Date
From: Tom Rix <trix@redhat.com>

An FPGA manager should not be required to provide a state() op.
Add a wrapper consistent with the other op wrappers.
Move op check to wrapper.
Default to FPGA_MGR_STATE_UNKNOWN, what noop state() ops use.
Remove unneeded noop state() ops

Signed-off-by: Tom Rix <trix@redhat.com>
---
drivers/fpga/dfl-fme-mgr.c | 6 ------
drivers/fpga/fpga-mgr.c | 11 +++++++++--
drivers/fpga/stratix10-soc.c | 6 ------
drivers/fpga/ts73xx-fpga.c | 6 ------
4 files changed, 9 insertions(+), 20 deletions(-)

diff --git a/drivers/fpga/dfl-fme-mgr.c b/drivers/fpga/dfl-fme-mgr.c
index d5861d13b3069..313420405d5e8 100644
--- a/drivers/fpga/dfl-fme-mgr.c
+++ b/drivers/fpga/dfl-fme-mgr.c
@@ -252,11 +252,6 @@ static int fme_mgr_write_complete(struct fpga_manager *mgr,
return 0;
}

-static enum fpga_mgr_states fme_mgr_state(struct fpga_manager *mgr)
-{
- return FPGA_MGR_STATE_UNKNOWN;
-}
-
static u64 fme_mgr_status(struct fpga_manager *mgr)
{
struct fme_mgr_priv *priv = mgr->priv;
@@ -268,7 +263,6 @@ static const struct fpga_manager_ops fme_mgr_ops = {
.write_init = fme_mgr_write_init,
.write = fme_mgr_write,
.write_complete = fme_mgr_write_complete,
- .state = fme_mgr_state,
.status = fme_mgr_status,
};

diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
index 6bfc4482abbf4..7d50ce26bf00c 100644
--- a/drivers/fpga/fpga-mgr.c
+++ b/drivers/fpga/fpga-mgr.c
@@ -589,7 +589,7 @@ struct fpga_manager *fpga_mgr_create(struct device *parent, const char *name,
struct fpga_manager *mgr;
int id, ret;

- if (!mops || !mops->state) {
+ if (!mops) {
dev_err(parent, "Attempt to register without fpga_manager_ops\n");
return NULL;
}
@@ -692,6 +692,13 @@ struct fpga_manager *devm_fpga_mgr_create(struct device *parent, const char *nam
}
EXPORT_SYMBOL_GPL(devm_fpga_mgr_create);

+static enum fpga_mgr_states fpga_mgr_state(struct fpga_manager *mgr)
+{
+ if (mgr->mops && mgr->mops->state)
+ return mgr->mops->state(mgr);
+ return FPGA_MGR_STATE_UNKNOWN;
+}
+
/**
* fpga_mgr_register - register an FPGA manager
* @mgr: fpga manager struct
@@ -707,7 +714,7 @@ int fpga_mgr_register(struct fpga_manager *mgr)
* from device. FPGA may be in reset mode or may have been programmed
* by bootloader or EEPROM.
*/
- mgr->state = mgr->mops->state(mgr);
+ mgr->state = fpga_mgr_state(mgr);

ret = device_add(&mgr->dev);
if (ret)
diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c
index a2cea500f7cc6..047fd7f237069 100644
--- a/drivers/fpga/stratix10-soc.c
+++ b/drivers/fpga/stratix10-soc.c
@@ -388,13 +388,7 @@ static int s10_ops_write_complete(struct fpga_manager *mgr,
return ret;
}

-static enum fpga_mgr_states s10_ops_state(struct fpga_manager *mgr)
-{
- return FPGA_MGR_STATE_UNKNOWN;
-}
-
static const struct fpga_manager_ops s10_ops = {
- .state = s10_ops_state,
.write_init = s10_ops_write_init,
.write = s10_ops_write,
.write_complete = s10_ops_write_complete,
diff --git a/drivers/fpga/ts73xx-fpga.c b/drivers/fpga/ts73xx-fpga.c
index 101f016c6ed8c..167abb0b08d40 100644
--- a/drivers/fpga/ts73xx-fpga.c
+++ b/drivers/fpga/ts73xx-fpga.c
@@ -32,11 +32,6 @@ struct ts73xx_fpga_priv {
struct device *dev;
};

-static enum fpga_mgr_states ts73xx_fpga_state(struct fpga_manager *mgr)
-{
- return FPGA_MGR_STATE_UNKNOWN;
-}
-
static int ts73xx_fpga_write_init(struct fpga_manager *mgr,
struct fpga_image_info *info,
const char *buf, size_t count)
@@ -98,7 +93,6 @@ static int ts73xx_fpga_write_complete(struct fpga_manager *mgr,
}

static const struct fpga_manager_ops ts73xx_fpga_ops = {
- .state = ts73xx_fpga_state,
.write_init = ts73xx_fpga_write_init,
.write = ts73xx_fpga_write,
.write_complete = ts73xx_fpga_write_complete,
--
2.26.3
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