linux-kernel - [PATCH] ASoC: ti: ams-delta: Fix cx81801

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Date:   Sat,  7 Oct 2023 23:38:18 +0200
From:   Janusz Krzysztofik <jmkrzyszt@...il.com>
To:     Peter Ujfalusi <peter.ujfalusi@...il.com>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        "Jiri Slaby (SUSE)" <jirislaby@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Janusz Krzysztofik <jmkrzyszt@...il.com>
Subject: [PATCH] ASoC: ti: ams-delta: Fix cx81801_receive() argument types

Since types of arguments accepted by tty_ldis_ops::receive_buf() have
changed, the driver no longer builds.

.../linux/sound/soc/ti/ams-delta.c:403:24: error: initialization of 'void (*)(struct tty_struct *, const u8 *, const u8 *, size_t)' {aka 'void (*)(struct tty_struct *, const unsigned char *, const unsigned char *, unsigned int)'} from incompatible pointer type 'void (*)(struct tty_struct *, const u8 *, const char *, int)' {aka 'void (*)(struct tty_struct *, const unsigned char *, const char *, int)'} [-Werror=incompatible-pointer-types]
  403 |         .receive_buf = cx81801_receive,

Fix it.

Fixes: e8161447bb0c ("tty: make tty_ldisc_ops::*buf*() hooks operate on size_t")
Fixes: 892bc209f250 ("tty: use u8 for flags")
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@...il.com>
---
 sound/soc/ti/ams-delta.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/ti/ams-delta.c b/sound/soc/ti/ams-delta.c
index 371943350fdf..666057d50ea0 100644
--- a/sound/soc/ti/ams-delta.c
+++ b/sound/soc/ti/ams-delta.c
@@ -336,8 +336,8 @@ static void cx81801_hangup(struct tty_struct *tty)
 }
 
 /* Line discipline .receive_buf() */
-static void cx81801_receive(struct tty_struct *tty, const u8 *cp,
-		const char *fp, int count)
+static void cx81801_receive(struct tty_struct *tty, const u8 *cp, const u8 *fp,
+			    size_t count)
 {
 	struct snd_soc_component *component = tty->disc_data;
 	const unsigned char *c;
-- 
2.42.0