firmware: cs_dsp: Avoid using a u32 as a __be32 in cs_dsp_mock_mem_maps.c

In cs_dsp_mock_xm_header_drop_from_regmap_cache() for the ADSP2 case read
the big-endian firmware word into a dedicated __be32 variable instead of
using the same u32 for both the big-endian and cpu-endian value.

Fixes: 41e78c0f44f9 ("firmware: cs_dsp: Add mock DSP memory map for KUnit testing")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20241217113127.186736-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/firmware/cirrus/test/cs_dsp_mock_mem_maps.c b/drivers/firmware/cirrus/test/cs_dsp_mock_mem_maps.c
index ae5d57bdcc2ffe91fb5c590807dde0a55e624a6d..161272e47bdabcc1fc9c63726035e9529b2cf434 100644 (file)
--- a/drivers/firmware/cirrus/test/cs_dsp_mock_mem_maps.c
+++ b/drivers/firmware/cirrus/test/cs_dsp_mock_mem_maps.c
@@ -526,7 +526,8 @@ void cs_dsp_mock_xm_header_drop_from_regmap_cache(struct cs_dsp_test *priv)
 {
        unsigned int xm = cs_dsp_mock_base_addr_for_mem(priv, WMFW_ADSP2_XM);
        unsigned int bytes;
-       u32 num_algs;
+       __be32 num_algs_be32;
+       unsigned int num_algs;
 
        switch (priv->dsp->type) {
        case WMFW_ADSP2:
@@ -536,8 +537,8 @@ void cs_dsp_mock_xm_header_drop_from_regmap_cache(struct cs_dsp_test *priv)
                 */
                regmap_raw_read(priv->dsp->regmap,
                                xm + (offsetof(struct wmfw_adsp2_id_hdr, n_algs) / 2),
-                               &num_algs, sizeof(num_algs));
-               num_algs = be32_to_cpu(num_algs);
+                               &num_algs_be32, sizeof(num_algs_be32));
+               num_algs = be32_to_cpu(num_algs_be32);
                bytes = sizeof(struct wmfw_adsp2_id_hdr) +
                        (num_algs * sizeof(struct wmfw_adsp2_alg_hdr)) +
                        4 /* terminator word */;