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=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 0158FC5DF60 for ; Tue, 5 Nov 2019 19:28:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8966E217F5 for ; Tue, 5 Nov 2019 19:28:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="VErl8XtE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390445AbfKET2K (ORCPT ); Tue, 5 Nov 2019 14:28:10 -0500 Received: from mail-wr1-f73.google.com ([209.85.221.73]:45831 "EHLO mail-wr1-f73.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389691AbfKET2K (ORCPT ); Tue, 5 Nov 2019 14:28:10 -0500 Received: by mail-wr1-f73.google.com with SMTP id y3so5898886wrm.12 for ; Tue, 05 Nov 2019 11:28:06 -0800 (PST) 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=E+oDLnvIU7ENQAAPOrl1GRNeFvZb4Uwtj09d81ZI488=; b=VErl8XtEJEmYa0mmi0nMARpyworR+b/H1/iZm+TmNqbcDcZ+Rwdfs4986J141qrhsm G3orYKTxARu//JawK6hb4rgoFPjZsqj+Kdffe9VlPBP86gEIEcaY+b/k/u5eCd3YVJL+ OMuzT9ga5d1K7DgVyTqSThWNMa755G2mCbW2QvpfcHEOk9cSWRT10dI20dJj3ZWGpXIU BjFEeMiVhES9MzJiI7niINcwOhiTiVrxWbJn7qGdT69NOOs1c1mKUFUAvHYkwyoIe39r bkil/z7WXT6LH4uNNNaKtOs6GhdNTFbb1mDlktMxJvf5yacaAaHyzV3zCC5c3jmAkdyR rGpw== 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=E+oDLnvIU7ENQAAPOrl1GRNeFvZb4Uwtj09d81ZI488=; b=gUfMqcd19o96Omt5RrJBS3LRD3cA2yuoLfejM/MP8Fcqjw/vFK/uAVcorEqLzJcKyG ksObBarmezV4jc/vdjOnxbq1lQABiqk/fDh4eI+W8NKe3Pum31JetZYCsvefhk1y27mN zoD2EGUCnaTz6WAXtkZ68sBX667icJlrvSextQNTrYKiCdOhfPfYnjGAVdGHCy3xo9Xz 6ta/vQP2u0f00TeRjFbRiyWIWJNXv6izG29N8kAb9CeP1pmMp6002Vt6uPvDVkmVbM3o 08Ju6PQQ8gli48CzJOMXC2awxF3pX61lfsdr+13wFn/zdbB50jY6mrhg0U4ph8xcP4PD Vs3A== X-Gm-Message-State: APjAAAUstJpbZDeFSRbT7eD0GBjvDSSR9WhZWjeVKwX6oKZ4thcdapCd EtEC6PEyq1igkxejRuMTqcpOoX4J+ZvS X-Google-Smtp-Source: APXvYqxsgD3FEIfPCc7Ih+WXaIat3cU89p7LOm8i2xB6ZJoiozIfgzitb+ZL/xu0IcF3kRfh24HlkiAfkr0X X-Received: by 2002:a5d:5091:: with SMTP id a17mr28815974wrt.249.1572982085767; Tue, 05 Nov 2019 11:28:05 -0800 (PST) Date: Tue, 5 Nov 2019 19:27:49 +0000 In-Reply-To: Message-Id: <20191105192749.67533-1-pterjan@google.com> Mime-Version: 1.0 References: X-Mailer: git-send-email 2.24.0.rc1.363.gb1bccd3e3d-goog Subject: [PATCH v4] 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, Geert Uytterhoeven Content-Type: text/plain; charset="UTF-8" Sender: linux-m68k-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-m68k@vger.kernel.org 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. That code hasn't built at least since git. Removing the definition from the header is safe anyway as that code was from another driver and not including it. Signed-off-by: Pascal Terjan Reviewed-by: Geert Uytterhoeven --- v4 removes the now empty comment block listing configuration options as suggested. 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 | 84 ------------------- 5 files changed, 89 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..13f63c01c589 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -22,18 +22,8 @@ * */ -/* - * Serial driver configuration section. Here are the various options: - * - * 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 +122,6 @@ 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 +157,6 @@ 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 +174,6 @@ 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 +745,6 @@ 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 +767,6 @@ 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 +789,6 @@ 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 +831,6 @@ 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 +838,6 @@ 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 +846,6 @@ 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 +861,6 @@ 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 +896,6 @@ 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 +915,6 @@ 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 +1047,6 @@ 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 +1067,6 @@ 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 +1089,8 @@ 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 +1142,6 @@ 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 +1260,6 @@ 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 +1303,6 @@ 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 +1361,6 @@ 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 +1385,6 @@ 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; -- 2.24.0.rc1.363.gb1bccd3e3d-goog