staging: fsl-mc: remove some superfluous WARN_ONs

These WARN_ONs shouldn't trigger unless something went very wrong.
Since the driver is in a stable state let's remove these debug
WARN_ONs.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c
index 06df528..d6a84dd 100644 (file)
--- a/drivers/staging/fsl-mc/bus/dprc-driver.c
+++ b/drivers/staging/fsl-mc/bus/dprc-driver.c
@@ -39,8 +39,6 @@ static int __fsl_mc_device_remove_if_not_in_mc(struct device *dev, void *data)
        struct fsl_mc_child_objs *objs;
        struct fsl_mc_device *mc_dev;
 
-       WARN_ON(!dev);
-       WARN_ON(!data);
        mc_dev = to_fsl_mc_device(dev);
        objs = data;
 
@@ -60,8 +58,6 @@ static int __fsl_mc_device_remove_if_not_in_mc(struct device *dev, void *data)
 
 static int __fsl_mc_device_remove(struct device *dev, void *data)
 {
-       WARN_ON(!dev);
-       WARN_ON(data);
        fsl_mc_device_remove(to_fsl_mc_device(dev));
        return 0;
 }
@@ -453,8 +449,6 @@ static int disable_dprc_irq(struct fsl_mc_device *mc_dev)
        int error;
        struct fsl_mc_io *mc_io = mc_dev->mc_io;
 
-       WARN_ON(mc_dev->obj_desc.irq_count != 1);
-
        /*
         * Disable generation of interrupt, while we configure it:
         */
@@ -496,8 +490,6 @@ static int register_dprc_irq_handler(struct fsl_mc_device *mc_dev)
        int error;
        struct fsl_mc_device_irq *irq = mc_dev->irqs[0];
 
-       WARN_ON(mc_dev->obj_desc.irq_count != 1);
-
        /*
         * NOTE: devm_request_threaded_irq() invokes the device-specific
         * function that programs the MSI physically in the device

diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c b/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c
index 8ea3920..d472a85 100644 (file)
--- a/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c
@@ -199,7 +199,6 @@ int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus,
                                            struct fsl_mc_resource, node);
 
        if (!resource) {
-               WARN_ON(res_pool->free_count != 0);
                error = -ENXIO;
                dev_err(&mc_bus_dev->dev,
                        "No more resources of type %s left\n",
@@ -474,7 +473,6 @@ int __must_check fsl_mc_allocate_irqs(struct fsl_mc_device *mc_dev)
                irqs[i] = to_fsl_mc_irq(resource);
                res_allocated_count++;
 
-               WARN_ON(irqs[i]->mc_dev);
                irqs[i]->mc_dev = mc_dev;
                irqs[i]->dev_irq_index = i;
        }
@@ -516,7 +514,6 @@ void fsl_mc_free_irqs(struct fsl_mc_device *mc_dev)
                return;
 
        for (i = 0; i < irq_count; i++) {
-               WARN_ON(!irqs[i]->mc_dev);
                irqs[i]->mc_dev = NULL;
                fsl_mc_resource_free(&irqs[i]->resource);
        }
@@ -553,17 +550,10 @@ static void fsl_mc_cleanup_resource_pool(struct fsl_mc_device *mc_bus_dev,
                                        &mc_bus->resource_pools[pool_type];
        int free_count = 0;
 
-       WARN_ON(res_pool->type != pool_type);
-       WARN_ON(res_pool->free_count != res_pool->max_count);
-
        list_for_each_entry_safe(resource, next, &res_pool->free_list, node) {
                free_count++;
-               WARN_ON(resource->type != res_pool->type);
-               WARN_ON(resource->parent_pool != res_pool);
                devm_kfree(&mc_bus_dev->dev, resource);
        }
-
-       WARN_ON(free_count != res_pool->free_count);
 }
 
 void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev)

diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-bus.c b/drivers/staging/fsl-mc/bus/fsl-mc-bus.c
index 409f2b9..1c2fd8d 100644 (file)
--- a/drivers/staging/fsl-mc/bus/fsl-mc-bus.c
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-bus.c
@@ -162,12 +162,7 @@ static int fsl_mc_driver_probe(struct device *dev)
        struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
        int error;
 
-       if (WARN_ON(!dev->driver))
-               return -EINVAL;
-
        mc_drv = to_fsl_mc_driver(dev->driver);
-       if (WARN_ON(!mc_drv->probe))
-               return -EINVAL;
 
        error = mc_drv->probe(mc_dev);
        if (error < 0) {
@@ -184,9 +179,6 @@ static int fsl_mc_driver_remove(struct device *dev)
        struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
        int error;
 
-       if (WARN_ON(!dev->driver))
-               return -EINVAL;
-
        error = mc_drv->remove(mc_dev);
        if (error < 0) {
                dev_err(dev, "%s failed: %d\n", __func__, error);
@@ -352,8 +344,6 @@ static int translate_mc_addr(struct fsl_mc_device *mc_dev,
        struct fsl_mc *mc;
 
        fsl_mc_get_root_dprc(&mc_dev->dev, &root_dprc_dev);
-       if (WARN_ON(!root_dprc_dev))
-               return -EINVAL;
        mc = dev_get_drvdata(root_dprc_dev->parent);
 
        if (mc->num_translation_ranges == 0) {
@@ -401,7 +391,6 @@ static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev,
                 * type, as this object type is not supposed to have MMIO
                 * regions
                 */
-               WARN_ON(true);
                return -EINVAL;
        }
 
@@ -424,7 +413,6 @@ static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev,
                        goto error_cleanup_regions;
                }
 
-               WARN_ON(region_desc.size == 0);
                error = translate_mc_addr(mc_dev, mc_region_type,
                                          region_desc.base_offset,
                                          &regions[i].start);

diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-msi.c b/drivers/staging/fsl-mc/bus/fsl-mc-msi.c
index f74a6f1..0ce6117 100644 (file)
--- a/drivers/staging/fsl-mc/bus/fsl-mc-msi.c
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-msi.c
@@ -124,7 +124,6 @@ static void fsl_mc_msi_write_msg(struct irq_data *irq_data,
        struct fsl_mc_device_irq *mc_dev_irq =
                &mc_bus->irq_resources[msi_desc->fsl_mc.msi_index];
 
-       WARN_ON(mc_dev_irq->msi_desc != msi_desc);
        msi_desc->msg = *msg;
 
        /*

diff --git a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
index 123e4af..947378f 100644 (file)
--- a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
+++ b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
@@ -93,9 +93,6 @@ int __init its_fsl_mc_msi_init(void)
                        continue;
                }
 
-               WARN_ON(mc_msi_domain->host_data !=
-                       &its_fsl_mc_msi_domain_info);
-
                pr_info("fsl-mc MSI: %pOF domain created\n", np);
        }
 

diff --git a/drivers/staging/fsl-mc/bus/mc-io.c b/drivers/staging/fsl-mc/bus/mc-io.c
index f65c23c..5530856 100644 (file)
--- a/drivers/staging/fsl-mc/bus/mc-io.c
+++ b/drivers/staging/fsl-mc/bus/mc-io.c
@@ -68,12 +68,6 @@ static void fsl_mc_io_unset_dpmcp(struct fsl_mc_io *mc_io)
        int error;
        struct fsl_mc_device *dpmcp_dev = mc_io->dpmcp_dev;
 
-       if (WARN_ON(!dpmcp_dev))
-               return;
-
-       if (WARN_ON(dpmcp_dev->mc_io != mc_io))
-               return;
-
        error = dpmcp_close(mc_io,
                            0,
                            dpmcp_dev->mc_handle);
@@ -224,8 +218,6 @@ int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev,
 
        error = -EINVAL;
        dpmcp_dev = resource->data;
-       if (WARN_ON(!dpmcp_dev))
-               goto error_cleanup_resource;
 
        if (dpmcp_dev->obj_desc.ver_major < DPMCP_MIN_VER_MAJOR ||
            (dpmcp_dev->obj_desc.ver_major == DPMCP_MIN_VER_MAJOR &&
@@ -238,15 +230,9 @@ int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev,
                goto error_cleanup_resource;
        }
 
-       if (WARN_ON(dpmcp_dev->obj_desc.region_count == 0))
-               goto error_cleanup_resource;
-
        mc_portal_phys_addr = dpmcp_dev->regions[0].start;
        mc_portal_size = resource_size(dpmcp_dev->regions);
 
-       if (WARN_ON(mc_portal_size != mc_bus_dev->mc_io->portal_size))
-               goto error_cleanup_resource;
-
        error = fsl_create_mc_io(&mc_bus_dev->dev,
                                 mc_portal_phys_addr,
                                 mc_portal_size, dpmcp_dev,
@@ -279,8 +265,6 @@ void fsl_mc_portal_free(struct fsl_mc_io *mc_io)
         * to have a DPMCP object associated with.
         */
        dpmcp_dev = mc_io->dpmcp_dev;
-       if (WARN_ON(!dpmcp_dev))
-               return;
 
        resource = dpmcp_dev->resource;
        if (WARN_ON(!resource || resource->type != FSL_MC_POOL_DPMCP))
@@ -304,9 +288,6 @@ int fsl_mc_portal_reset(struct fsl_mc_io *mc_io)
        int error;
        struct fsl_mc_device *dpmcp_dev = mc_io->dpmcp_dev;
 
-       if (WARN_ON(!dpmcp_dev))
-               return -EINVAL;
-
        error = dpmcp_reset(mc_io, 0, dpmcp_dev->mc_handle);
        if (error < 0) {
                dev_err(&dpmcp_dev->dev, "dpmcp_reset() failed: %d\n", error);