From: Richard Fitzgerald Date: Mon, 24 Nov 2025 17:15:35 +0000 (+0000) Subject: firmware: cs_dsp: Store control length as 32-bit X-Git-Tag: v6.19-rc1~156^2~3^2~20 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7584edf15892e29190b2145294cc1680aa142586;p=thirdparty%2Fkernel%2Flinux.git firmware: cs_dsp: Store control length as 32-bit The architectures supported by this driver have a maximum of 32-bits of address, so we don't need more than 32-bits to store the length of control data. Change the length in struct cs_dsp_coeff_ctl to an unsigned int instead of a size_t. Also make a corresponding trivial change to wm_adsp.c to prevent a compiler warning. Tested on x86_64 builds this saves at least 4 bytes per control (another 4 bytes might be saved if the compiler was inserting padding to align the size_t). Signed-off-by: Richard Fitzgerald Link: https://patch.msgid.link/20251124171536.78962-1-rf@opensource.cirrus.com Signed-off-by: Mark Brown --- diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c index 9acdcd75928a9..36a5aefa16e78 100644 --- a/drivers/firmware/cirrus/cs_dsp.c +++ b/drivers/firmware/cirrus/cs_dsp.c @@ -477,7 +477,7 @@ static int cs_dsp_debugfs_read_controls_show(struct seq_file *s, void *ignored) list_for_each_entry(ctl, &dsp->ctl_list, list) { cs_dsp_coeff_base_reg(ctl, ®, 0); - seq_printf(s, "%22.*s: %#8zx %s:%08x %#8x %s %#8x %#4x %c%c%c%c %s %s\n", + seq_printf(s, "%22.*s: %#8x %s:%08x %#8x %s %#8x %#4x %c%c%c%c %s %s\n", ctl->subname_len, ctl->subname, ctl->len, cs_dsp_mem_region_name(ctl->alg_region.type), ctl->offset, reg, ctl->fw_name, ctl->alg_region.alg, ctl->type, diff --git a/include/linux/firmware/cirrus/cs_dsp.h b/include/linux/firmware/cirrus/cs_dsp.h index 69959032f8f51..0ec1cdc5585d2 100644 --- a/include/linux/firmware/cirrus/cs_dsp.h +++ b/include/linux/firmware/cirrus/cs_dsp.h @@ -102,7 +102,7 @@ struct cs_dsp_coeff_ctl { const char *subname; unsigned int subname_len; unsigned int offset; - size_t len; + unsigned int len; unsigned int type; unsigned int flags; unsigned int set:1; diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index 172dcdd7dbca0..17cec79245d43 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -1561,7 +1561,7 @@ static int wm_adsp_buffer_parse_coeff(struct cs_dsp_coeff_ctl *cs_ctl) for (i = 0; i < 5; ++i) { ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, &coeff_v1, - min(cs_ctl->len, sizeof(coeff_v1))); + min((size_t)cs_ctl->len, sizeof(coeff_v1))); if (ret < 0) return ret;