strtobool() is the same as kstrtobool().
However, the latter is more used within the kernel.

In order to remove strtobool() and slightly simplify kstrtox.h, switch to
the other function name.

While at it, include the corresponding header file (<linux/kstrtox.h>)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
This patch was already sent as a part of a serie ([1]) that axed all usages
of strtobool().
Most of the patches have been merged in -next.

I synch'ed with latest -next and re-send the remaining ones as individual
patches.

Only 2 patches remain un-applied.

Changes in v3:
  - No change
  - Adding in cc: akpm@linux-foundation.org
  - Fix a duplicated Signed-off-by at the end of the "below --- section"

Changes in v2:
  - No change
  - https://lore.kernel.org/all/58207d5b81c5739c037c030893fb08ea3dbedc57.1673687451.git.christophe.jaillet@wanadoo.fr/

v1:  
[1]: https://lore.kernel.org/all/cover.1667336095.git.christophe.jaillet@wanadoo.fr/
---
 net/bluetooth/hci_debugfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index b7f682922a16..f1ef60ddd4a6 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -22,6 +22,7 @@
 */
 
 #include <linux/debugfs.h>
+#include <linux/kstrtox.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -1152,7 +1153,7 @@ static ssize_t force_no_mitm_write(struct file *file,
 		return -EFAULT;
 
 	buf[buf_size] = '\0';
-	if (strtobool(buf, &enable))
+	if (kstrtobool(buf, &enable))
 		return -EINVAL;
 
 	if (enable == hci_dev_test_flag(hdev, HCI_FORCE_NO_MITM))
-- 
2.34.1

Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@intel.com>:

On Tue, 11 Jul 2023 19:41:10 +0200 you wrote:
> strtobool() is the same as kstrtobool().
> However, the latter is more used within the kernel.
> 
> In order to remove strtobool() and slightly simplify kstrtox.h, switch to
> the other function name.
> 
> While at it, include the corresponding header file (<linux/kstrtox.h>)
> 
> [...]

Here is the summary with links:
  - [v3] Bluetooth: hci_debugfs: Use kstrtobool() instead of strtobool()
    https://git.kernel.org/bluetooth/bluetooth-next/c/34ffc92ed051

You are awesome, thank you!
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