linux-kernel - [PATCH] ASoC: cs-amp-lib-test: Use flex_array

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Message-Id: <20250415131837.568750-1-rf@opensource.cirrus.com>
Date: Tue, 15 Apr 2025 14:18:37 +0100
From: Richard Fitzgerald <rf@...nsource.cirrus.com>
To: broonie@...nel.org
Cc: linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org,
        patches@...nsource.cirrus.com
Subject: [PATCH] ASoC: cs-amp-lib-test: Use flex_array_size()

Use flex_array_size() when calculating the number of bytes argument to
get_random_bytes(). This replaces a calculation based on passing sizeof()
the expected type of the destination.

Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
---
 sound/soc/codecs/cs-amp-lib-test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/cs-amp-lib-test.c b/sound/soc/codecs/cs-amp-lib-test.c
index 906a28bccad1..f53650128fc3 100644
--- a/sound/soc/codecs/cs-amp-lib-test.c
+++ b/sound/soc/codecs/cs-amp-lib-test.c
@@ -54,7 +54,7 @@ static void cs_amp_lib_test_init_dummy_cal_blob(struct kunit *test, int num_amps
 	priv->cal_blob->size = blob_size;
 	priv->cal_blob->count = num_amps;
 
-	get_random_bytes(priv->cal_blob->data, sizeof(struct cirrus_amp_cal_data) * num_amps);
+	get_random_bytes(priv->cal_blob->data, flex_array_size(priv->cal_blob, data, num_amps));
 
 	/* Ensure all timestamps are non-zero to mark the entry valid. */
 	for (i = 0; i < num_amps; i++)
-- 
2.39.5