ipa: libipa: pwl: Make the empty() function inline

The Pwl::empty() function is a one-liner that can be easily optimized by
the compiler given the chance. Make it inline.

While at it, move the function documentation block to match the class
declaration order.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ipa/libipa/pwl.h b/src/ipa/libipa/pwl.h
index 4cc257f9..b4de00cf 100644
--- a/src/ipa/libipa/pwl.h
+++ b/src/ipa/libipa/pwl.h
@@ -51,7 +51,7 @@ public:
 
 	void append(double x, double y, double eps = 1e-6);
 
-	bool empty() const;
+	bool empty() const { return points_.empty(); }
 	Interval domain() const;
 	Interval range() const;