Re: [PATCH] staging: greybus: Remove usage of the deprecated ida_simple_xx() API

From: Alex Elder
Date: Fri Jan 26 2024 - 10:25:33 EST

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On 1/15/24 2:22 PM, Christophe JAILLET wrote:

ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

Note that the upper limit of ida_simple_get() is exclusive, buInputt the one of

Fix whatever it is you meant to say here. ^^^^^^^^

ida_alloc_range()/ida_alloc_max() is inclusive. So a -1 has been added when
needed.

Otherwise this looks good.

Reviewed-by: Alex Elder <elder@xxxxxxxxxx>

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
drivers/staging/greybus/audio_manager.c | 8 ++++----
drivers/staging/greybus/authentication.c | 6 +++---
drivers/staging/greybus/fw-download.c | 7 +++----
drivers/staging/greybus/fw-management.c | 20 +++++++++-----------
drivers/staging/greybus/gbphy.c | 6 +++---
drivers/staging/greybus/loopback.c | 6 +++---
drivers/staging/greybus/raw.c | 6 +++---
drivers/staging/greybus/vibrator.c | 6 +++---
8 files changed, 31 insertions(+), 34 deletions(-)

diff --git a/drivers/staging/greybus/audio_manager.c b/drivers/staging/greybus/audio_manager.c
index 9a3f7c034ab4..fa43d35bbcec 100644
--- a/drivers/staging/greybus/audio_manager.c
+++ b/drivers/staging/greybus/audio_manager.c
@@ -44,14 +44,14 @@ int gb_audio_manager_add(struct gb_audio_manager_module_descriptor *desc)
int id;
int err;
- id = ida_simple_get(&module_id, 0, 0, GFP_KERNEL);
+ id = ida_alloc(&module_id, GFP_KERNEL);
if (id < 0)
return id;
err = gb_audio_manager_module_create(&module, manager_kset,
id, desc);
if (err) {
- ida_simple_remove(&module_id, id);
+ ida_free(&module_id, id);
return err;
}
@@ -78,7 +78,7 @@ int gb_audio_manager_remove(int id)
list_del(&module->list);
kobject_put(&module->kobj);
up_write(&modules_rwsem);
- ida_simple_remove(&module_id, id);
+ ida_free(&module_id, id);
return 0;
}
EXPORT_SYMBOL_GPL(gb_audio_manager_remove);
@@ -92,7 +92,7 @@ void gb_audio_manager_remove_all(void)
list_for_each_entry_safe(module, next, &modules_list, list) {
list_del(&module->list);
- ida_simple_remove(&module_id, module->id);
+ ida_free(&module_id, module->id);
kobject_put(&module->kobj);
}
diff --git a/drivers/staging/greybus/authentication.c b/drivers/staging/greybus/authentication.c
index b67315641d18..d53e58f92e81 100644
--- a/drivers/staging/greybus/authentication.c
+++ b/drivers/staging/greybus/authentication.c
@@ -324,7 +324,7 @@ int gb_cap_connection_init(struct gb_connection *connection)
if (ret)
goto err_list_del;
- minor = ida_simple_get(&cap_minors_map, 0, NUM_MINORS, GFP_KERNEL);
+ minor = ida_alloc_max(&cap_minors_map, NUM_MINORS - 1, GFP_KERNEL);
if (minor < 0) {
ret = minor;
goto err_connection_disable;
@@ -351,7 +351,7 @@ int gb_cap_connection_init(struct gb_connection *connection)
err_del_cdev:
cdev_del(&cap->cdev);
err_remove_ida:
- ida_simple_remove(&cap_minors_map, minor);
+ ida_free(&cap_minors_map, minor);
err_connection_disable:
gb_connection_disable(connection);
err_list_del:
@@ -375,7 +375,7 @@ void gb_cap_connection_exit(struct gb_connection *connection)
device_destroy(&cap_class, cap->dev_num);
cdev_del(&cap->cdev);
- ida_simple_remove(&cap_minors_map, MINOR(cap->dev_num));
+ ida_free(&cap_minors_map, MINOR(cap->dev_num));
/*
* Disallow any new ioctl operations on the char device and wait for
diff --git a/drivers/staging/greybus/fw-download.c b/drivers/staging/greybus/fw-download.c
index 543692c567f9..2a5c6d1b049c 100644
--- a/drivers/staging/greybus/fw-download.c
+++ b/drivers/staging/greybus/fw-download.c
@@ -63,8 +63,7 @@ static void fw_req_release(struct kref *kref)
* just hope that it never happens.
*/
if (!fw_req->timedout)
- ida_simple_remove(&fw_req->fw_download->id_map,
- fw_req->firmware_id);
+ ida_free(&fw_req->fw_download->id_map, fw_req->firmware_id);
kfree(fw_req);
}
@@ -171,7 +170,7 @@ static struct fw_request *find_firmware(struct fw_download *fw_download,
return ERR_PTR(-ENOMEM);
/* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */
- ret = ida_simple_get(&fw_download->id_map, 1, 256, GFP_KERNEL);
+ ret = ida_alloc_range(&fw_download->id_map, 1, 255, GFP_KERNEL);
if (ret < 0) {
dev_err(fw_download->parent,
"failed to allocate firmware id (%d)\n", ret);
@@ -212,7 +211,7 @@ static struct fw_request *find_firmware(struct fw_download *fw_download,
return fw_req;
err_free_id:
- ida_simple_remove(&fw_download->id_map, fw_req->firmware_id);
+ ida_free(&fw_download->id_map, fw_req->firmware_id);
err_free_req:
kfree(fw_req);
diff --git a/drivers/staging/greybus/fw-management.c b/drivers/staging/greybus/fw-management.c
index 93137a3c4907..3054f084d777 100644
--- a/drivers/staging/greybus/fw-management.c
+++ b/drivers/staging/greybus/fw-management.c
@@ -165,7 +165,7 @@ static int fw_mgmt_load_and_validate_operation(struct fw_mgmt *fw_mgmt,
}
/* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */
- ret = ida_simple_get(&fw_mgmt->id_map, 1, 256, GFP_KERNEL);
+ ret = ida_alloc_range(&fw_mgmt->id_map, 1, 255, GFP_KERNEL);
if (ret < 0) {
dev_err(fw_mgmt->parent, "failed to allocate request id (%d)\n",
ret);
@@ -180,8 +180,7 @@ static int fw_mgmt_load_and_validate_operation(struct fw_mgmt *fw_mgmt,
GB_FW_MGMT_TYPE_LOAD_AND_VALIDATE_FW, &request,
sizeof(request), NULL, 0);
if (ret) {
- ida_simple_remove(&fw_mgmt->id_map,
- fw_mgmt->intf_fw_request_id);
+ ida_free(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id);
fw_mgmt->intf_fw_request_id = 0;
dev_err(fw_mgmt->parent,
"load and validate firmware request failed (%d)\n",
@@ -220,7 +219,7 @@ static int fw_mgmt_interface_fw_loaded_operation(struct gb_operation *op)
return -ENODEV;
}
- ida_simple_remove(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id);
+ ida_free(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id);
fw_mgmt->intf_fw_request_id = 0;
fw_mgmt->intf_fw_status = request->status;
fw_mgmt->intf_fw_major = le16_to_cpu(request->major);
@@ -316,7 +315,7 @@ static int fw_mgmt_backend_fw_update_operation(struct fw_mgmt *fw_mgmt,
}
/* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */
- ret = ida_simple_get(&fw_mgmt->id_map, 1, 256, GFP_KERNEL);
+ ret = ida_alloc_range(&fw_mgmt->id_map, 1, 255, GFP_KERNEL);
if (ret < 0) {
dev_err(fw_mgmt->parent, "failed to allocate request id (%d)\n",
ret);
@@ -330,8 +329,7 @@ static int fw_mgmt_backend_fw_update_operation(struct fw_mgmt *fw_mgmt,
GB_FW_MGMT_TYPE_BACKEND_FW_UPDATE, &request,
sizeof(request), NULL, 0);
if (ret) {
- ida_simple_remove(&fw_mgmt->id_map,
- fw_mgmt->backend_fw_request_id);
+ ida_free(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id);
fw_mgmt->backend_fw_request_id = 0;
dev_err(fw_mgmt->parent,
"backend %s firmware update request failed (%d)\n", tag,
@@ -369,7 +367,7 @@ static int fw_mgmt_backend_fw_updated_operation(struct gb_operation *op)
return -ENODEV;
}
- ida_simple_remove(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id);
+ ida_free(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id);
fw_mgmt->backend_fw_request_id = 0;
fw_mgmt->backend_fw_status = request->status;
@@ -617,7 +615,7 @@ int gb_fw_mgmt_connection_init(struct gb_connection *connection)
if (ret)
goto err_list_del;
- minor = ida_simple_get(&fw_mgmt_minors_map, 0, NUM_MINORS, GFP_KERNEL);
+ minor = ida_alloc_max(&fw_mgmt_minors_map, NUM_MINORS - 1, GFP_KERNEL);
if (minor < 0) {
ret = minor;
goto err_connection_disable;
@@ -645,7 +643,7 @@ int gb_fw_mgmt_connection_init(struct gb_connection *connection)
err_del_cdev:
cdev_del(&fw_mgmt->cdev);
err_remove_ida:
- ida_simple_remove(&fw_mgmt_minors_map, minor);
+ ida_free(&fw_mgmt_minors_map, minor);
err_connection_disable:
gb_connection_disable(connection);
err_list_del:
@@ -669,7 +667,7 @@ void gb_fw_mgmt_connection_exit(struct gb_connection *connection)
device_destroy(&fw_mgmt_class, fw_mgmt->dev_num);
cdev_del(&fw_mgmt->cdev);
- ida_simple_remove(&fw_mgmt_minors_map, MINOR(fw_mgmt->dev_num));
+ ida_free(&fw_mgmt_minors_map, MINOR(fw_mgmt->dev_num));
/*
* Disallow any new ioctl operations on the char device and wait for
diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c
index 6a7d8cf2a1eb..93b74a236ab1 100644
--- a/drivers/staging/greybus/gbphy.c
+++ b/drivers/staging/greybus/gbphy.c
@@ -46,7 +46,7 @@ static void gbphy_dev_release(struct device *dev)
{
struct gbphy_device *gbphy_dev = to_gbphy_dev(dev);
- ida_simple_remove(&gbphy_id, gbphy_dev->id);
+ ida_free(&gbphy_id, gbphy_dev->id);
kfree(gbphy_dev);
}
@@ -225,13 +225,13 @@ static struct gbphy_device *gb_gbphy_create_dev(struct gb_bundle *bundle,
int retval;
int id;
- id = ida_simple_get(&gbphy_id, 1, 0, GFP_KERNEL);
+ id = ida_alloc_min(&gbphy_id, 1, GFP_KERNEL);
if (id < 0)
return ERR_PTR(id);
gbphy_dev = kzalloc(sizeof(*gbphy_dev), GFP_KERNEL);
if (!gbphy_dev) {
- ida_simple_remove(&gbphy_id, id);
+ ida_free(&gbphy_id, id);
return ERR_PTR(-ENOMEM);
}
diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c
index d7b39f3bb652..bb33379b5297 100644
--- a/drivers/staging/greybus/loopback.c
+++ b/drivers/staging/greybus/loopback.c
@@ -1028,7 +1028,7 @@ static int gb_loopback_probe(struct gb_bundle *bundle,
gb->file = debugfs_create_file(name, S_IFREG | 0444, gb_dev.root, gb,
&gb_loopback_dbgfs_latency_fops);
- gb->id = ida_simple_get(&loopback_ida, 0, 0, GFP_KERNEL);
+ gb->id = ida_alloc(&loopback_ida, GFP_KERNEL);
if (gb->id < 0) {
retval = gb->id;
goto out_debugfs_remove;
@@ -1079,7 +1079,7 @@ static int gb_loopback_probe(struct gb_bundle *bundle,
out_connection_disable:
gb_connection_disable(connection);
out_ida_remove:
- ida_simple_remove(&loopback_ida, gb->id);
+ ida_free(&loopback_ida, gb->id);
out_debugfs_remove:
debugfs_remove(gb->file);
out_connection_destroy:
@@ -1121,7 +1121,7 @@ static void gb_loopback_disconnect(struct gb_bundle *bundle)
spin_unlock_irqrestore(&gb_dev.lock, flags);
device_unregister(gb->dev);
- ida_simple_remove(&loopback_ida, gb->id);
+ ida_free(&loopback_ida, gb->id);
gb_connection_destroy(gb->connection);
kfree(gb);
diff --git a/drivers/staging/greybus/raw.c b/drivers/staging/greybus/raw.c
index b9c6eff7cdc1..836d35e5fa85 100644
--- a/drivers/staging/greybus/raw.c
+++ b/drivers/staging/greybus/raw.c
@@ -181,7 +181,7 @@ static int gb_raw_probe(struct gb_bundle *bundle,
raw->connection = connection;
greybus_set_drvdata(bundle, raw);
- minor = ida_simple_get(&minors, 0, 0, GFP_KERNEL);
+ minor = ida_alloc(&minors, GFP_KERNEL);
if (minor < 0) {
retval = minor;
goto error_connection_destroy;
@@ -214,7 +214,7 @@ static int gb_raw_probe(struct gb_bundle *bundle,
gb_connection_disable(connection);
error_remove_ida:
- ida_simple_remove(&minors, minor);
+ ida_free(&minors, minor);
error_connection_destroy:
gb_connection_destroy(connection);
@@ -235,7 +235,7 @@ static void gb_raw_disconnect(struct gb_bundle *bundle)
device_destroy(&raw_class, raw->dev);
cdev_del(&raw->cdev);
gb_connection_disable(connection);
- ida_simple_remove(&minors, MINOR(raw->dev));
+ ida_free(&minors, MINOR(raw->dev));
gb_connection_destroy(connection);
mutex_lock(&raw->list_lock);
diff --git a/drivers/staging/greybus/vibrator.c b/drivers/staging/greybus/vibrator.c
index 227e18d92a95..89bef8045549 100644
--- a/drivers/staging/greybus/vibrator.c
+++ b/drivers/staging/greybus/vibrator.c
@@ -153,7 +153,7 @@ static int gb_vibrator_probe(struct gb_bundle *bundle,
* there is a "real" device somewhere in the kernel for this, but I
* can't find it at the moment...
*/
- vib->minor = ida_simple_get(&minors, 0, 0, GFP_KERNEL);
+ vib->minor = ida_alloc(&minors, GFP_KERNEL);
if (vib->minor < 0) {
retval = vib->minor;
goto err_connection_disable;
@@ -173,7 +173,7 @@ static int gb_vibrator_probe(struct gb_bundle *bundle,
return 0;
err_ida_remove:
- ida_simple_remove(&minors, vib->minor);
+ ida_free(&minors, vib->minor);
err_connection_disable:
gb_connection_disable(connection);
err_connection_destroy:
@@ -197,7 +197,7 @@ static void gb_vibrator_disconnect(struct gb_bundle *bundle)
turn_off(vib);
device_unregister(vib->dev);
- ida_simple_remove(&minors, vib->minor);
+ ida_free(&minors, vib->minor);
gb_connection_disable(vib->connection);
gb_connection_destroy(vib->connection);
kfree(vib);

Next message: Gang Li: "[PATCH v5 2/7] hugetlb: split hugetlb_hstate_alloc_pages"
Previous message: Gang Li: "[PATCH v5 1/7] hugetlb: code clean for hugetlb_hstate_alloc_pages"
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