linux-kernel - [PATCH] platform-msi: Remove usage of the deprecated ida_simple

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Date: Sat, 20 Jan 2024 07:58:46 +0100
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>
Cc: linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] platform-msi: Remove usage of the deprecated ida_simple_xx() API

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, but the one of
ida_alloc_max() is inclusive. So a -1 has been added when needed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/base/platform-msi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
index f37ad34c80ec..ca48d1f60865 100644
--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c
@@ -172,8 +172,8 @@ static int platform_msi_alloc_priv_data(struct device *dev, unsigned int nvec,
 	if (!datap)
 		return -ENOMEM;
 
-	datap->devid = ida_simple_get(&platform_msi_devid_ida,
-				      0, 1 << DEV_ID_SHIFT, GFP_KERNEL);
+	datap->devid = ida_alloc_max(&platform_msi_devid_ida,
+				     (1 << DEV_ID_SHIFT) - 1, GFP_KERNEL);
 	if (datap->devid < 0) {
 		err = datap->devid;
 		kfree(datap);
@@ -191,7 +191,7 @@ static void platform_msi_free_priv_data(struct device *dev)
 	struct platform_msi_priv_data *data = dev->msi.data->platform_data;
 
 	dev->msi.data->platform_data = NULL;
-	ida_simple_remove(&platform_msi_devid_ida, data->devid);
+	ida_free(&platform_msi_devid_ida, data->devid);
 	kfree(data);
 }
 
-- 
2.43.0