[dpdk-dev] [PATCH v3 8/8] bus: remove useless plug parameter

[Gaetan Rivet]

The prior scan should link the relevant rte_devargs to the newly
allocated rte_device. As such, it is useless to pass device arguments to
the plug callback. Those arguments are available within the devargs
field of the rte_device structure.

Fixes: 7c8810f43f6e ("bus: introduce device plug/unplug")
Fixes: 00e62aae69c0 ("bus/pci: implement plug/unplug operations")
Fixes: a3ee360f4440 ("eal: add hotplug add/remove device")

Signed-off-by: Gaetan Rivet <gaetan.ri...@6wind.com>
---
 lib/librte_eal/common/eal_common_dev.c  | 2 +-
 lib/librte_eal/common/eal_common_pci.c  | 2 +-
 lib/librte_eal/common/eal_common_vdev.c | 2 +-
 lib/librte_eal/common/include/rte_bus.h | 6 +-----
 4 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/lib/librte_eal/common/eal_common_dev.c 
b/lib/librte_eal/common/eal_common_dev.c
index f5566a6..6fcbea4 100644
--- a/lib/librte_eal/common/eal_common_dev.c
+++ b/lib/librte_eal/common/eal_common_dev.c
@@ -188,7 +188,7 @@ int rte_eal_hotplug_add(const char *busname, const char 
*devname,
                goto err_devarg;
        }
 
-       ret = bus->plug(dev, devargs);
+       ret = bus->plug(dev);
        if (ret) {
                RTE_LOG(ERR, EAL, "Driver cannot attach the device (%s)\n",
                        dev->name);
diff --git a/lib/librte_eal/common/eal_common_pci.c 
b/lib/librte_eal/common/eal_common_pci.c
index cdd197a..9ad1bf1 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -541,7 +541,7 @@ pci_find_device(const struct rte_device *start, 
rte_dev_cmp_t cmp,
 }
 
 static int
-pci_plug(struct rte_device *dev, const char *devargs __rte_unused)
+pci_plug(struct rte_device *dev)
 {
        return pci_probe_all_drivers(RTE_DEV_TO_PCI(dev));
 }
diff --git a/lib/librte_eal/common/eal_common_vdev.c 
b/lib/librte_eal/common/eal_common_vdev.c
index 79bb795..0817573 100644
--- a/lib/librte_eal/common/eal_common_vdev.c
+++ b/lib/librte_eal/common/eal_common_vdev.c
@@ -316,7 +316,7 @@ vdev_find_device(const struct rte_device *start, 
rte_dev_cmp_t cmp,
 }
 
 static int
-vdev_plug(struct rte_device *dev, const char *args __rte_unused)
+vdev_plug(struct rte_device *dev)
 {
        return vdev_probe_all_drivers(RTE_DEV_TO_VDEV(dev));
 }
diff --git a/lib/librte_eal/common/include/rte_bus.h 
b/lib/librte_eal/common/include/rte_bus.h
index af9f0e1..c79368d 100644
--- a/lib/librte_eal/common/include/rte_bus.h
+++ b/lib/librte_eal/common/include/rte_bus.h
@@ -113,15 +113,11 @@ typedef struct rte_device *
  * @param dev
  *     Device pointer that was returned by a previous call to find_device.
  *
- * @param devargs
- *     Device declaration.
- *
  * @return
  *     0 on success.
  *     !0 on error.
  */
-typedef int (*rte_bus_plug_t)(struct rte_device *dev,
-                             const char *devargs);
+typedef int (*rte_bus_plug_t)(struct rte_device *dev);
 
 /**
  * Implementation specific remove function which is responsible for unlinking
-- 
2.1.4