From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B561AC4361A for ; Wed, 5 May 2021 09:20:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F0F8613F5 for ; Wed, 5 May 2021 09:20:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232834AbhEEJVE (ORCPT ); Wed, 5 May 2021 05:21:04 -0400 Received: from mx2.suse.de ([195.135.220.15]:41422 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232359AbhEEJUa (ORCPT ); Wed, 5 May 2021 05:20:30 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id BCA68B25B; Wed, 5 May 2021 09:19:32 +0000 (UTC) From: Jiri Slaby To: gregkh@linuxfoundation.org Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Jiri Slaby , William Hubbs , Chris Brannon , Kirk Reiser , Samuel Thibault , Marcel Holtmann , Johan Hedberg , Luiz Augusto von Dentz , Dmitry Torokhov , Arnd Bergmann , "David S. Miller" , Jakub Kicinski , Wolfgang Grandegger , Marc Kleine-Budde , Andreas Koensgen , Paul Mackerras , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Peter Ujfalusi Subject: [PATCH 11/35] tty: make fp of tty_ldisc_ops::receive_buf{,2} const Date: Wed, 5 May 2021 11:19:04 +0200 Message-Id: <20210505091928.22010-12-jslaby@suse.cz> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210505091928.22010-1-jslaby@suse.cz> References: <20210505091928.22010-1-jslaby@suse.cz> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Char pointer (cp) passed to tty_ldisc_ops::receive_buf{,2} is const. There is no reason for flag pointer (fp) not to be too. So switch it in the definition and all uses. Signed-off-by: Jiri Slaby Cc: William Hubbs Cc: Chris Brannon Cc: Kirk Reiser Cc: Samuel Thibault Cc: Marcel Holtmann Cc: Johan Hedberg Cc: Luiz Augusto von Dentz Cc: Dmitry Torokhov Cc: Arnd Bergmann Cc: "David S. Miller" Cc: Jakub Kicinski Cc: Wolfgang Grandegger Cc: Marc Kleine-Budde Cc: Andreas Koensgen Cc: Paul Mackerras Cc: Liam Girdwood Cc: Mark Brown Cc: Jaroslav Kysela Cc: Takashi Iwai Cc: Peter Ujfalusi --- drivers/accessibility/speakup/spk_ttyio.c | 3 ++- drivers/bluetooth/hci_ldisc.c | 2 +- drivers/input/serio/serport.c | 3 ++- drivers/misc/ti-st/st_core.c | 2 +- drivers/net/caif/caif_serial.c | 2 +- drivers/net/can/slcan.c | 3 ++- drivers/net/hamradio/6pack.c | 2 +- drivers/net/hamradio/mkiss.c | 2 +- drivers/net/ppp/ppp_async.c | 6 +++--- drivers/net/ppp/ppp_synctty.c | 6 +++--- drivers/net/slip/slip.c | 2 +- drivers/tty/n_gsm.c | 2 +- drivers/tty/n_hdlc.c | 2 +- drivers/tty/n_null.c | 2 +- drivers/tty/n_tty.c | 16 ++++++++-------- drivers/tty/tty_buffer.c | 4 ++-- include/linux/tty.h | 2 +- include/linux/tty_ldisc.h | 4 ++-- net/nfc/nci/uart.c | 2 +- sound/soc/codecs/cx20442.c | 4 ++-- sound/soc/ti/ams-delta.c | 4 ++-- 21 files changed, 39 insertions(+), 36 deletions(-) diff --git a/drivers/accessibility/speakup/spk_ttyio.c b/drivers/accessibility/speakup/spk_ttyio.c index 2e39fcf492d8..b7fd094700d9 100644 --- a/drivers/accessibility/speakup/spk_ttyio.c +++ b/drivers/accessibility/speakup/spk_ttyio.c @@ -72,7 +72,8 @@ static void spk_ttyio_ldisc_close(struct tty_struct *tty) } static int spk_ttyio_receive_buf2(struct tty_struct *tty, - const unsigned char *cp, char *fp, int count) + const unsigned char *cp, + const char *fp, int count) { struct spk_ldisc_data *ldisc_data = tty->disc_data; struct spk_synth *synth = ldisc_data->synth; diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c index 71a4ca505e09..e785851a92c1 100644 --- a/drivers/bluetooth/hci_ldisc.c +++ b/drivers/bluetooth/hci_ldisc.c @@ -593,7 +593,7 @@ static void hci_uart_tty_wakeup(struct tty_struct *tty) * Return Value: None */ static void hci_uart_tty_receive(struct tty_struct *tty, const u8 *data, - char *flags, int count) + const char *flags, int count) { struct hci_uart *hu = tty->disc_data; diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c index 33e9d9bfd036..ff3715315592 100644 --- a/drivers/input/serio/serport.c +++ b/drivers/input/serio/serport.c @@ -114,7 +114,8 @@ static void serport_ldisc_close(struct tty_struct *tty) * 'interrupt' routine. */ -static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count) +static void serport_ldisc_receive(struct tty_struct *tty, + const unsigned char *cp, const char *fp, int count) { struct serport *serport = (struct serport*) tty->disc_data; unsigned long flags; diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c index 071844b58073..239a75502cd6 100644 --- a/drivers/misc/ti-st/st_core.c +++ b/drivers/misc/ti-st/st_core.c @@ -798,7 +798,7 @@ static void st_tty_close(struct tty_struct *tty) } static void st_tty_receive(struct tty_struct *tty, const unsigned char *data, - char *tty_flags, int count) + const char *tty_flags, int count) { #ifdef VERBOSE print_hex_dump(KERN_DEBUG, ">in>", DUMP_PREFIX_NONE, diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c index da6fffb4d5a8..fb3ca4e11fe5 100644 --- a/drivers/net/caif/caif_serial.c +++ b/drivers/net/caif/caif_serial.c @@ -159,7 +159,7 @@ static inline void debugfs_tx(struct ser_device *ser, const u8 *data, int size) #endif static void ldisc_receive(struct tty_struct *tty, const u8 *data, - char *flags, int count) + const char *flags, int count) { struct sk_buff *skb = NULL; struct ser_device *ser; diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c index 31ba6664503d..7dc3e79cb5c4 100644 --- a/drivers/net/can/slcan.c +++ b/drivers/net/can/slcan.c @@ -467,7 +467,8 @@ static void slc_setup(struct net_device *dev) */ static void slcan_receive_buf(struct tty_struct *tty, - const unsigned char *cp, char *fp, int count) + const unsigned char *cp, const char *fp, + int count) { struct slcan *sl = (struct slcan *) tty->disc_data; diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c index 80f41945709f..c0a80f04dd8e 100644 --- a/drivers/net/hamradio/6pack.c +++ b/drivers/net/hamradio/6pack.c @@ -428,7 +428,7 @@ static void sixpack_write_wakeup(struct tty_struct *tty) * and sent on to some IP layer for further processing. */ static void sixpack_receive_buf(struct tty_struct *tty, - const unsigned char *cp, char *fp, int count) + const unsigned char *cp, const char *fp, int count) { struct sixpack *sp; int count1; diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c index 65154224d5b8..fc05ded48178 100644 --- a/drivers/net/hamradio/mkiss.c +++ b/drivers/net/hamradio/mkiss.c @@ -871,7 +871,7 @@ static int mkiss_ioctl(struct tty_struct *tty, struct file *file, * and sent on to the AX.25 layer for further processing. */ static void mkiss_receive_buf(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count) + const char *fp, int count) { struct mkiss *ax = mkiss_get(tty); diff --git a/drivers/net/ppp/ppp_async.c b/drivers/net/ppp/ppp_async.c index 8b41aa3fb64e..9f08bd19551f 100644 --- a/drivers/net/ppp/ppp_async.c +++ b/drivers/net/ppp/ppp_async.c @@ -98,7 +98,7 @@ static int ppp_async_send(struct ppp_channel *chan, struct sk_buff *skb); static int ppp_async_push(struct asyncppp *ap); static void ppp_async_flush_output(struct asyncppp *ap); static void ppp_async_input(struct asyncppp *ap, const unsigned char *buf, - char *flags, int count); + const char *flags, int count); static int ppp_async_ioctl(struct ppp_channel *chan, unsigned int cmd, unsigned long arg); static void ppp_async_process(struct tasklet_struct *t); @@ -340,7 +340,7 @@ ppp_asynctty_poll(struct tty_struct *tty, struct file *file, poll_table *wait) /* May sleep, don't call from interrupt level or with interrupts disabled */ static void ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf, - char *cflags, int count) + const char *cflags, int count) { struct asyncppp *ap = ap_get(tty); unsigned long flags; @@ -829,7 +829,7 @@ process_input_packet(struct asyncppp *ap) static void ppp_async_input(struct asyncppp *ap, const unsigned char *buf, - char *flags, int count) + const char *flags, int count) { struct sk_buff *skb; int c, i, j, n, s, f; diff --git a/drivers/net/ppp/ppp_synctty.c b/drivers/net/ppp/ppp_synctty.c index 576b6a93bf23..c82c4e6df4cb 100644 --- a/drivers/net/ppp/ppp_synctty.c +++ b/drivers/net/ppp/ppp_synctty.c @@ -94,7 +94,7 @@ static void ppp_sync_process(struct tasklet_struct *t); static int ppp_sync_push(struct syncppp *ap); static void ppp_sync_flush_output(struct syncppp *ap); static void ppp_sync_input(struct syncppp *ap, const unsigned char *buf, - char *flags, int count); + const char *flags, int count); static const struct ppp_channel_ops sync_ops = { .start_xmit = ppp_sync_send, @@ -333,7 +333,7 @@ ppp_sync_poll(struct tty_struct *tty, struct file *file, poll_table *wait) /* May sleep, don't call from interrupt level or with interrupts disabled */ static void ppp_sync_receive(struct tty_struct *tty, const unsigned char *buf, - char *cflags, int count) + const char *cflags, int count) { struct syncppp *ap = sp_get(tty); unsigned long flags; @@ -665,7 +665,7 @@ ppp_sync_flush_output(struct syncppp *ap) */ static void ppp_sync_input(struct syncppp *ap, const unsigned char *buf, - char *flags, int count) + const char *flags, int count) { struct sk_buff *skb; unsigned char *p; diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c index 1ab124eba8eb..4dda49e61745 100644 --- a/drivers/net/slip/slip.c +++ b/drivers/net/slip/slip.c @@ -685,7 +685,7 @@ static void sl_setup(struct net_device *dev) */ static void slip_receive_buf(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count) + const char *fp, int count) { struct slip *sl = tty->disc_data; diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 5fea02cfb0cc..477403ecc445 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2424,7 +2424,7 @@ static void gsmld_detach_gsm(struct tty_struct *tty, struct gsm_mux *gsm) } static void gsmld_receive_buf(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count) + const char *fp, int count) { struct gsm_mux *gsm = tty->disc_data; char flags = TTY_NORMAL; diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c index b0f33e8ac819..62b1d1a6e0f1 100644 --- a/drivers/tty/n_hdlc.c +++ b/drivers/tty/n_hdlc.c @@ -358,7 +358,7 @@ static void n_hdlc_tty_wakeup(struct tty_struct *tty) * interpreted as one HDLC frame. */ static void n_hdlc_tty_receive(struct tty_struct *tty, const __u8 *data, - char *flags, int count) + const char *flags, int count) { register struct n_hdlc *n_hdlc = tty->disc_data; register struct n_hdlc_buf *buf; diff --git a/drivers/tty/n_null.c b/drivers/tty/n_null.c index b8f67b5f1ef8..2ff373d2f98d 100644 --- a/drivers/tty/n_null.c +++ b/drivers/tty/n_null.c @@ -33,7 +33,7 @@ static ssize_t n_null_write(struct tty_struct *tty, struct file *file, } static void n_null_receivebuf(struct tty_struct *tty, - const unsigned char *cp, char *fp, + const unsigned char *cp, const char *fp, int cnt) { } diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 0d93be26c678..c32318da5190 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1474,7 +1474,7 @@ n_tty_receive_char_lnext(struct tty_struct *tty, unsigned char c, char flag) static void n_tty_receive_buf_real_raw(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count) + const char *fp, int count) { struct n_tty_data *ldata = tty->disc_data; size_t n, head; @@ -1494,7 +1494,7 @@ n_tty_receive_buf_real_raw(struct tty_struct *tty, const unsigned char *cp, static void n_tty_receive_buf_raw(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count) + const char *fp, int count) { struct n_tty_data *ldata = tty->disc_data; char flag = TTY_NORMAL; @@ -1511,7 +1511,7 @@ n_tty_receive_buf_raw(struct tty_struct *tty, const unsigned char *cp, static void n_tty_receive_buf_closing(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count) + const char *fp, int count) { char flag = TTY_NORMAL; @@ -1524,7 +1524,7 @@ n_tty_receive_buf_closing(struct tty_struct *tty, const unsigned char *cp, } static void n_tty_receive_buf_standard(struct tty_struct *tty, - const unsigned char *cp, char *fp, int count) + const unsigned char *cp, const char *fp, int count) { struct n_tty_data *ldata = tty->disc_data; char flag = TTY_NORMAL; @@ -1562,7 +1562,7 @@ static void n_tty_receive_buf_standard(struct tty_struct *tty, } static void __receive_buf(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count) + const char *fp, int count) { struct n_tty_data *ldata = tty->disc_data; bool preops = I_ISTRIP(tty) || (I_IUCLC(tty) && L_IEXTEN(tty)); @@ -1629,7 +1629,7 @@ static void __receive_buf(struct tty_struct *tty, const unsigned char *cp, */ static int n_tty_receive_buf_common(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count, int flow) + const char *fp, int count, int flow) { struct n_tty_data *ldata = tty->disc_data; int room, n, rcvd = 0, overflow; @@ -1698,13 +1698,13 @@ n_tty_receive_buf_common(struct tty_struct *tty, const unsigned char *cp, } static void n_tty_receive_buf(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count) + const char *fp, int count) { n_tty_receive_buf_common(tty, cp, fp, count, 0); } static int n_tty_receive_buf2(struct tty_struct *tty, const unsigned char *cp, - char *fp, int count) + const char *fp, int count) { return n_tty_receive_buf_common(tty, cp, fp, count, 1); } diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index 9733469a14b2..55b1f1711341 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -455,7 +455,7 @@ EXPORT_SYMBOL_GPL(tty_prepare_flip_string); * Returns the number of bytes processed */ int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p, - char *f, int count) + const char *f, int count) { if (ld->ops->receive_buf2) count = ld->ops->receive_buf2(ld->tty, p, f, count); @@ -472,7 +472,7 @@ static int receive_buf(struct tty_port *port, struct tty_buffer *head, int count) { unsigned char *p = char_buf_ptr(head, head->read); - char *f = NULL; + const char *f = NULL; int n; if (~head->flags & TTYB_NORMAL) diff --git a/include/linux/tty.h b/include/linux/tty.h index e5d6b1f28823..5aad2220266c 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -628,7 +628,7 @@ extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc); extern int tty_unregister_ldisc(int disc); extern int tty_set_ldisc(struct tty_struct *tty, int disc); extern int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p, - char *f, int count); + const char *f, int count); /* n_tty.c */ extern void n_tty_inherit_ops(struct tty_ldisc_ops *ops); diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h index 31284b55bd4f..c20ca6a75b4c 100644 --- a/include/linux/tty_ldisc.h +++ b/include/linux/tty_ldisc.h @@ -201,11 +201,11 @@ struct tty_ldisc_ops { * The following routines are called from below. */ void (*receive_buf)(struct tty_struct *, const unsigned char *cp, - char *fp, int count); + const char *fp, int count); void (*write_wakeup)(struct tty_struct *); void (*dcd_change)(struct tty_struct *, unsigned int); int (*receive_buf2)(struct tty_struct *, const unsigned char *cp, - char *fp, int count); + const char *fp, int count); struct module *owner; diff --git a/net/nfc/nci/uart.c b/net/nfc/nci/uart.c index 1248faf4d6df..98102ef64004 100644 --- a/net/nfc/nci/uart.c +++ b/net/nfc/nci/uart.c @@ -308,7 +308,7 @@ static int nci_uart_default_recv_buf(struct nci_uart *nu, const u8 *data, * Return Value: None */ static void nci_uart_tty_receive(struct tty_struct *tty, const u8 *data, - char *flags, int count) + const char *flags, int count) { struct nci_uart *nu = (void *)tty->disc_data; diff --git a/sound/soc/codecs/cx20442.c b/sound/soc/codecs/cx20442.c index 61dfa86d444d..ec8d6e74b467 100644 --- a/sound/soc/codecs/cx20442.c +++ b/sound/soc/codecs/cx20442.c @@ -259,8 +259,8 @@ static int v253_hangup(struct tty_struct *tty) } /* Line discipline .receive_buf() */ -static void v253_receive(struct tty_struct *tty, - const unsigned char *cp, char *fp, int count) +static void v253_receive(struct tty_struct *tty, const unsigned char *cp, + const char *fp, int count) { struct snd_soc_component *component = tty->disc_data; struct cx20442_priv *cx20442; diff --git a/sound/soc/ti/ams-delta.c b/sound/soc/ti/ams-delta.c index aba0017e870b..55a6736a378e 100644 --- a/sound/soc/ti/ams-delta.c +++ b/sound/soc/ti/ams-delta.c @@ -337,8 +337,8 @@ static int cx81801_hangup(struct tty_struct *tty) } /* Line discipline .receive_buf() */ -static void cx81801_receive(struct tty_struct *tty, - const unsigned char *cp, char *fp, int count) +static void cx81801_receive(struct tty_struct *tty, const unsigned char *cp, + const char *fp, int count) { struct snd_soc_component *component = tty->disc_data; const unsigned char *c; -- 2.31.1