[Intel-gfx] [RFC PATCH 08/11] drm/i915/params: support bool values for int and uint params

[Jani Nikula]

It's not uncommon for us to switch param types between bools and ints,
often having otherwise bool semantics but -1 value for platform
default. Allow bool values for ints.

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 33375cf79713..c9e2cf8e071a 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -61,6 +61,13 @@ static ssize_t i915_param_int_write(struct file *file,
 	int ret;
 
 	ret = kstrtoint_from_user(ubuf, len, 0, value);
+	if (ret) {
+		/* support boolean values too */
+		bool b;
+		ret = kstrtobool_from_user(ubuf, len, &b);
+		if (!ret)
+			*value = b;
+	}
 
 	return ret ?: len;
 }
@@ -106,6 +113,13 @@ static ssize_t i915_param_uint_write(struct file *file,
 	int ret;
 
 	ret = kstrtouint_from_user(ubuf, len, 0, value);
+	if (ret) {
+		/* support boolean values too */
+		bool b;
+		ret = kstrtobool_from_user(ubuf, len, &b);
+		if (!ret)
+			*value = b;
+	}
 
 	return ret ?: len;
 }
-- 
2.11.0