linux-kernel - [PATCH 09/10] misc: ti-st: remove ptr from recv functions

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Date:   Mon, 31 Jul 2023 10:02:43 +0200
From:   "Jiri Slaby (SUSE)" <jirislaby@...nel.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Jiri Slaby (SUSE)" <jirislaby@...nel.org>,
        Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 09/10] misc: ti-st: remove ptr from recv functions

ptr is the same as data, so use ptr directly as a parameter and drop the
useless local variable.

Likely, the two were introduced to have a different type. But 'char' and
'unsigned char' are the same in the kernel for a long time.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>
---
 drivers/misc/ti-st/st_core.c | 4 +---
 drivers/misc/ti-st/st_kim.c  | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index 389901276ce3..e2add50b191c 100644
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -224,9 +224,8 @@ static inline void st_wakeup_ack(struct st_data_s *st_gdata,
  *	CH-8 packets from FM, CH-9 packets from GPS cores.
  */
 static void st_int_recv(void *disc_data,
-	const unsigned char *data, long count)
+	const unsigned char *ptr, long count)
 {
-	char *ptr;
 	struct st_proto_s *proto;
 	unsigned short payload_len = 0;
 	int len = 0;
@@ -235,7 +234,6 @@ static void st_int_recv(void *disc_data,
 	struct st_data_s *st_gdata = (struct st_data_s *)disc_data;
 	unsigned long flags;
 
-	ptr = (char *)data;
 	/* tty_receive sent null ? */
 	if (unlikely(ptr == NULL) || (st_gdata == NULL)) {
 		pr_err(" received null from TTY ");
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index f2f6cab97c08..8c801897ffa2 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -128,15 +128,13 @@ static inline int kim_check_data_len(struct kim_data_s *kim_gdata, int len)
  *	tty_receive and hence the logic
  */
 static void kim_int_recv(struct kim_data_s *kim_gdata,
-	const unsigned char *data, long count)
+	const unsigned char *ptr, long count)
 {
-	const unsigned char *ptr;
 	int len = 0;
 	unsigned char *plen;
 
 	pr_debug("%s", __func__);
 	/* Decode received bytes here */
-	ptr = data;
 	if (unlikely(ptr == NULL)) {
 		pr_err(" received null from TTY ");
 		return;
-- 
2.41.0