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=-17.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=ham 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 8D83FC4360C for ; Fri, 4 Oct 2019 13:20:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 54D0321D81 for ; Fri, 4 Oct 2019 13:20:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="a+nH/Pu+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388186AbfJDNUK (ORCPT ); Fri, 4 Oct 2019 09:20:10 -0400 Received: from mail-wr1-f73.google.com ([209.85.221.73]:50507 "EHLO mail-wr1-f73.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388181AbfJDNUJ (ORCPT ); Fri, 4 Oct 2019 09:20:09 -0400 Received: by mail-wr1-f73.google.com with SMTP id m14so2709778wru.17 for ; Fri, 04 Oct 2019 06:20:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=73kqNCUANe+IRB8IL6K6Fklh6XcAl8GJ3OmZkTG4gbA=; b=a+nH/Pu+yxlMzQOnl2IkmolXZ2DAWhy11R6iA5Nfv3jNbajCXTCZ5i928RFFfcnBQX fARiZLYs4vI+sCiA5Ux27K2ynzdorUw3wyiZ8YaE2Yf+WcMTS9VtLn3oQI9o5cD+WMhJ Nyk6UtV0tFhIrS/PZpVE4KIIlc1Rr8o7iE1GSQBJ8ApMlGS6y7LWtw8BA1yxXsUm4e5w ll35dyhZ0cTVtgN1xuLw3qs/3LJkIgQ/EXjO/HsDBWP6nSoNrGUXu/7g4ndShtFNZZUf rTm8U6hLFdlj7Q8cAaUMk0Pi0ISLBdnslJ1ao8DMxrBmw5xS3oncMMpBw67MlJQk5aQ7 h1XA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=73kqNCUANe+IRB8IL6K6Fklh6XcAl8GJ3OmZkTG4gbA=; b=YvXUCRpRrr7Jnyd6zttqXWfGlJpJJXQHiymraDgBh+t9IQQ9z5ykCQiUZdW9dPKm9V gkf7p3uCeDd8irRwwAbnZCfVPUarJT6Iv2Fa+cPw62egV+PK/tapqXYE/F4rZBWZ0V8Y LvCfTq7TJl5ABWJeX8ddHLOoqIYb9mNMAhrW/v4tu5EVUQKx8nksdCbzTjy5FxSaAXIu mndz/1vIN58t9Fri4ObfSHRjMNXSVyyLbpmLJmIk1vR7O4EZLEAz50PUDDOy97nVIAu+ XAV16yzcVmRltciTiZAByQV76hXLePl5PkVz6dyGrYmEehTdwEKUADO9od0ePfDNgLoB q+hw== X-Gm-Message-State: APjAAAWqFxnDeOTiEK9Skvu4JDWnLptpEydoulgK8Oo3XhOjZYw2nNL2 BkUnlYXYVVzYfVZNSkJRgAvNlQTYn/iP X-Google-Smtp-Source: APXvYqxJUG03128tmYS9fAlN9uStoPojCLi6GBfemXm2cmL3+HIoOAvC4e5YCpNKKJiaQXC9CXOvoVFmsujC X-Received: by 2002:adf:eec5:: with SMTP id a5mr7450386wrp.191.1570195205815; Fri, 04 Oct 2019 06:20:05 -0700 (PDT) Date: Fri, 4 Oct 2019 14:20:01 +0100 In-Reply-To: <20191004124505.GA556034@kroah.com> Message-Id: <20191004132001.99027-1-pterjan@google.com> Mime-Version: 1.0 References: <20191004124505.GA556034@kroah.com> X-Mailer: git-send-email 2.23.0.581.g78d2f28ef7-goog Subject: [PATCH] Remove every trace of SERIAL_MAGIC From: Pascal Terjan To: Greg Kroah-Hartman , Jiri Slaby Cc: Pascal Terjan , linux-serial@vger.kernel.org, linux-m68k@lists.linux-m68k.org Content-Type: text/plain; charset="UTF-8" Sender: linux-serial-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org The only code mentioning it doesn't build (and hasn't at least since git) and doesn't include the header defining it. This means removing support for checking magic in amiserial.c (SERIAL_PARANOIA_CHECK option), which was checking a magic field which doesn't currently exist in the struct. Signed-off-by: Pascal Terjan --- Documentation/process/magic-number.rst | 1 - .../it_IT/process/magic-number.rst | 1 - .../zh_CN/process/magic-number.rst | 1 - drivers/net/wan/z85230.h | 2 - drivers/tty/amiserial.c | 81 +------------------ 5 files changed, 1 insertion(+), 85 deletions(-) diff --git a/Documentation/process/magic-number.rst b/Documentation/process/magic-number.rst index 547bbf28e615..eee9b44553b3 100644 --- a/Documentation/process/magic-number.rst +++ b/Documentation/process/magic-number.rst @@ -81,7 +81,6 @@ FF_MAGIC 0x4646 fc_info ``drivers/net/ip ISICOM_MAGIC 0x4d54 isi_port ``include/linux/isicom.h`` PTY_MAGIC 0x5001 ``drivers/char/pty.c`` PPP_MAGIC 0x5002 ppp ``include/linux/if_pppvar.h`` -SERIAL_MAGIC 0x5301 async_struct ``include/linux/serial.h`` SSTATE_MAGIC 0x5302 serial_state ``include/linux/serial.h`` SLIP_MAGIC 0x5302 slip ``drivers/net/slip.h`` STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c`` diff --git a/Documentation/translations/it_IT/process/magic-number.rst b/Documentation/translations/it_IT/process/magic-number.rst index ed1121d0ba84..783e0de314a0 100644 --- a/Documentation/translations/it_IT/process/magic-number.rst +++ b/Documentation/translations/it_IT/process/magic-number.rst @@ -87,7 +87,6 @@ FF_MAGIC 0x4646 fc_info ``drivers/net/ip ISICOM_MAGIC 0x4d54 isi_port ``include/linux/isicom.h`` PTY_MAGIC 0x5001 ``drivers/char/pty.c`` PPP_MAGIC 0x5002 ppp ``include/linux/if_pppvar.h`` -SERIAL_MAGIC 0x5301 async_struct ``include/linux/serial.h`` SSTATE_MAGIC 0x5302 serial_state ``include/linux/serial.h`` SLIP_MAGIC 0x5302 slip ``drivers/net/slip.h`` STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c`` diff --git a/Documentation/translations/zh_CN/process/magic-number.rst b/Documentation/translations/zh_CN/process/magic-number.rst index 15c592518194..e4c225996af0 100644 --- a/Documentation/translations/zh_CN/process/magic-number.rst +++ b/Documentation/translations/zh_CN/process/magic-number.rst @@ -70,7 +70,6 @@ FF_MAGIC 0x4646 fc_info ``drivers/net/ip ISICOM_MAGIC 0x4d54 isi_port ``include/linux/isicom.h`` PTY_MAGIC 0x5001 ``drivers/char/pty.c`` PPP_MAGIC 0x5002 ppp ``include/linux/if_pppvar.h`` -SERIAL_MAGIC 0x5301 async_struct ``include/linux/serial.h`` SSTATE_MAGIC 0x5302 serial_state ``include/linux/serial.h`` SLIP_MAGIC 0x5302 slip ``drivers/net/slip.h`` STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c`` diff --git a/drivers/net/wan/z85230.h b/drivers/net/wan/z85230.h index 32ae710d4f40..1081d171e477 100644 --- a/drivers/net/wan/z85230.h +++ b/drivers/net/wan/z85230.h @@ -421,8 +421,6 @@ extern struct z8530_irqhandler z8530_sync, z8530_async, z8530_nop; * Asynchronous Interfacing */ -#define SERIAL_MAGIC 0x5301 - /* * The size of the serial xmit buffer is 1 page, or 4096 bytes */ diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 8330fd809a05..0af81a82df8f 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -23,17 +23,12 @@ */ /* - * Serial driver configuration section. Here are the various options: + * Serial driver configuration section. * - * SERIAL_PARANOIA_CHECK - * Check the magic number for the async_structure where - * ever possible. */ #include -#undef SERIAL_PARANOIA_CHECK - /* Set of debugging defines */ #undef SERIAL_DEBUG_INTR @@ -132,28 +127,6 @@ static struct serial_state rs_table[1]; #define serial_isroot() (capable(CAP_SYS_ADMIN)) - -static inline int serial_paranoia_check(struct serial_state *info, - char *name, const char *routine) -{ -#ifdef SERIAL_PARANOIA_CHECK - static const char *badmagic = - "Warning: bad magic number for serial struct (%s) in %s\n"; - static const char *badinfo = - "Warning: null async_struct for (%s) in %s\n"; - - if (!info) { - printk(badinfo, name, routine); - return 1; - } - if (info->magic != SERIAL_MAGIC) { - printk(badmagic, name, routine); - return 1; - } -#endif - return 0; -} - /* some serial hardware definitions */ #define SDR_OVRUN (1<<15) #define SDR_RBF (1<<14) @@ -189,9 +162,6 @@ static void rs_stop(struct tty_struct *tty) struct serial_state *info = tty->driver_data; unsigned long flags; - if (serial_paranoia_check(info, tty->name, "rs_stop")) - return; - local_irq_save(flags); if (info->IER & UART_IER_THRI) { info->IER &= ~UART_IER_THRI; @@ -209,9 +179,6 @@ static void rs_start(struct tty_struct *tty) struct serial_state *info = tty->driver_data; unsigned long flags; - if (serial_paranoia_check(info, tty->name, "rs_start")) - return; - local_irq_save(flags); if (info->xmit.head != info->xmit.tail && info->xmit.buf @@ -783,9 +750,6 @@ static int rs_put_char(struct tty_struct *tty, unsigned char ch) info = tty->driver_data; - if (serial_paranoia_check(info, tty->name, "rs_put_char")) - return 0; - if (!info->xmit.buf) return 0; @@ -808,9 +772,6 @@ static void rs_flush_chars(struct tty_struct *tty) struct serial_state *info = tty->driver_data; unsigned long flags; - if (serial_paranoia_check(info, tty->name, "rs_flush_chars")) - return; - if (info->xmit.head == info->xmit.tail || tty->stopped || tty->hw_stopped @@ -833,9 +794,6 @@ static int rs_write(struct tty_struct * tty, const unsigned char *buf, int count struct serial_state *info = tty->driver_data; unsigned long flags; - if (serial_paranoia_check(info, tty->name, "rs_write")) - return 0; - if (!info->xmit.buf) return 0; @@ -878,8 +836,6 @@ static int rs_write_room(struct tty_struct *tty) { struct serial_state *info = tty->driver_data; - if (serial_paranoia_check(info, tty->name, "rs_write_room")) - return 0; return CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); } @@ -887,8 +843,6 @@ static int rs_chars_in_buffer(struct tty_struct *tty) { struct serial_state *info = tty->driver_data; - if (serial_paranoia_check(info, tty->name, "rs_chars_in_buffer")) - return 0; return CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); } @@ -897,8 +851,6 @@ static void rs_flush_buffer(struct tty_struct *tty) struct serial_state *info = tty->driver_data; unsigned long flags; - if (serial_paranoia_check(info, tty->name, "rs_flush_buffer")) - return; local_irq_save(flags); info->xmit.head = info->xmit.tail = 0; local_irq_restore(flags); @@ -914,9 +866,6 @@ static void rs_send_xchar(struct tty_struct *tty, char ch) struct serial_state *info = tty->driver_data; unsigned long flags; - if (serial_paranoia_check(info, tty->name, "rs_send_xchar")) - return; - info->x_char = ch; if (ch) { /* Make sure transmit interrupts are on */ @@ -952,9 +901,6 @@ static void rs_throttle(struct tty_struct * tty) printk("throttle %s ....\n", tty_name(tty)); #endif - if (serial_paranoia_check(info, tty->name, "rs_throttle")) - return; - if (I_IXOFF(tty)) rs_send_xchar(tty, STOP_CHAR(tty)); @@ -974,9 +920,6 @@ static void rs_unthrottle(struct tty_struct * tty) printk("unthrottle %s ....\n", tty_name(tty)); #endif - if (serial_paranoia_check(info, tty->name, "rs_unthrottle")) - return; - if (I_IXOFF(tty)) { if (info->x_char) info->x_char = 0; @@ -1109,8 +1052,6 @@ static int rs_tiocmget(struct tty_struct *tty) unsigned char control, status; unsigned long flags; - if (serial_paranoia_check(info, tty->name, "rs_ioctl")) - return -ENODEV; if (tty_io_error(tty)) return -EIO; @@ -1131,8 +1072,6 @@ static int rs_tiocmset(struct tty_struct *tty, unsigned int set, struct serial_state *info = tty->driver_data; unsigned long flags; - if (serial_paranoia_check(info, tty->name, "rs_ioctl")) - return -ENODEV; if (tty_io_error(tty)) return -EIO; @@ -1155,12 +1094,8 @@ static int rs_tiocmset(struct tty_struct *tty, unsigned int set, */ static int rs_break(struct tty_struct *tty, int break_state) { - struct serial_state *info = tty->driver_data; unsigned long flags; - if (serial_paranoia_check(info, tty->name, "rs_break")) - return -EINVAL; - local_irq_save(flags); if (break_state == -1) custom.adkcon = AC_SETCLR | AC_UARTBRK; @@ -1212,9 +1147,6 @@ static int rs_ioctl(struct tty_struct *tty, DEFINE_WAIT(wait); int ret; - if (serial_paranoia_check(info, tty->name, "rs_ioctl")) - return -ENODEV; - if ((cmd != TIOCSERCONFIG) && (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) { if (tty_io_error(tty)) @@ -1333,9 +1265,6 @@ static void rs_close(struct tty_struct *tty, struct file * filp) struct serial_state *state = tty->driver_data; struct tty_port *port = &state->tport; - if (serial_paranoia_check(state, tty->name, "rs_close")) - return; - if (tty_port_close_start(port, tty, filp) == 0) return; @@ -1379,9 +1308,6 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout) unsigned long orig_jiffies, char_time; int lsr; - if (serial_paranoia_check(info, tty->name, "rs_wait_until_sent")) - return; - if (info->xmit_fifo_size == 0) return; /* Just in case.... */ @@ -1440,9 +1366,6 @@ static void rs_hangup(struct tty_struct *tty) { struct serial_state *info = tty->driver_data; - if (serial_paranoia_check(info, tty->name, "rs_hangup")) - return; - rs_flush_buffer(tty); shutdown(tty, info); info->tport.count = 0; @@ -1467,8 +1390,6 @@ static int rs_open(struct tty_struct *tty, struct file * filp) port->tty = tty; tty->driver_data = info; tty->port = port; - if (serial_paranoia_check(info, tty->name, "rs_open")) - return -ENODEV; port->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0; -- 2.23.0.581.g78d2f28ef7-goog