From patchwork Sat May 16 17:39:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oscar Carter X-Patchwork-Id: 11553615 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D5166913 for ; Sat, 16 May 2020 17:40:38 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 9B3F2206D8 for ; Sat, 16 May 2020 17:40:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="FXjHxhzY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9B3F2206D8 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gmx.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-18823-patchwork-kernel-hardening=patchwork.kernel.org@lists.openwall.com Received: (qmail 31756 invoked by uid 550); 16 May 2020 17:40:34 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Delivered-To: mailing list kernel-hardening@lists.openwall.com Received: (qmail 30694 invoked from network); 16 May 2020 17:40:34 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1589650815; bh=svKHqIihi2LkFyIclqBrhHmmZ5pFgZhV4k/M5HUfvYU=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date; b=FXjHxhzYuLfDPeHoOSl8KdP/2H/oEV1gx2+L9gpUXLjLGjxWkccTx9/mx26V9FEYa cfSZoisNDFsngWkijMGJlyl5OCrdmpoFKraPFP1wrR0t1Mo0Ee3Utva0bju2q6o3g/ tmNEadccqmsCVV0M24D2eBhu72QkC/OHBbIJQytc= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c From: Oscar Carter To: Kees Cook , Stefan Richter , Mauro Carvalho Chehab , Clemens Ladisch , Takashi Sakamoto , Jaroslav Kysela , Takashi Iwai Cc: kernel-hardening@lists.openwall.com, linux1394-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, alsa-devel@alsa-project.org, Oscar Carter Subject: [PATCH] firewire: Remove function callback casts Date: Sat, 16 May 2020 19:39:34 +0200 Message-Id: <20200516173934.31527-1-oscar.carter@gmx.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Provags-ID: V03:K1:Z020tf5rikbggnvyzosr6a5IroYYLf6i6PImziyyhMDKJreRBv3 J6x+WEMYBuxsPg+zaxBztvueMsWrrxOb6z9Rl5cWZZ6k9S3L1BanWm5EYrdWJnbDu/OpuLr 5WoAfBWfS7ZYrKSz/olxYdYvmhM5Rj2n8pTBsAwKmVdvQlAuXT/SspC41BOVZKDWHX3MdA7 J+3U+3IOiEw268GJbmSzw== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:mYbgd0+L8Xc=:YQl0HwCgvkxUMu9varvTRd u2RfVdPLHpnzJXIOSiAHRqeJDCG60SEuLvrsNxiAQj7Y425W8k7uMc5Mm+YCrX6yZ/cocchmJ HGcVX6fND2Z+4+KJN063+pzY+rVK3K49N2SJTDpvE3Au4fhkJhhtIQf9vSLk5WrT0rUaRYcNQ DgML1I82o4GZ48Ju8XDbdKJY7fiaCx8SaJj5nHUjujGQssZ5PwgcGZmoViBv2z/vZDleydOuS eoWK5ygziYB9Xk8RNMLz2vS2aA41NqCkwkiqHtPzfA0Hx4o0+dUUySgR54bJI6kImhow9EAqt G0ZE8EdouUvXcO2w9akffLmTksTkYY4GD8FjuFHi1hpXtq8pib9Qp6cme8vYYfqA7KSUHYwjC Np2zIIduA4SEQdiZBVLzHOUA0ECRAs3WC3ucmGjfqHw+9L8U0foLmF0fQ/wORUKqsj5oKlfV+ /N/3mCIvvnV4putlQkIrRYXSnlhlc4rLs/tUFvH6q2IhMtzDMhbZi5xE7mv/rQ/mrl0XtSw8q JqSc3px/bHicpR0zAjMZ3jH1V/ZzCPSWaUwFQrdHye84r15z4TwAYjKnVElWoqkWDB57RjJ09 0O0pWjxTn5LNiUDfiRtjju/xDmQaI7tVC8w+jDXvRidj5fkxGKLWS32rvaCQ5uSeT+oHFRuhS 0wC/MOCwiMU+78UJhVjXoxuxI9NUZopY/PTCLuGSrlCJfrW5JbTG5mTTnQGLNnYASqrMt7x9W olpJc+Bvok5ulc8jZ+hqIxTDeRXXPal/Xb5KsssA4m+gTCtRjtjzk5G0WlgyclzRohht6e5D+ Ut2+ZbT2is3OBWavvhP6eLIV3VSdRr9yRygEV/I9LhvVL+Q24ZUbCRLLcnTZeiHNAfUHdiWKj hgPISRPnTZFybcW+eyCIuOT1E71yu3PPCfwQ+0RPYQge5rUc0o6kHshI7Rj/7RJmTyj38HCHn 9QhW8hKVchkuk8MXQxR3D2D51JhJ//uGzAzYN+SuIJrBZsdkLi/47icuTlCBIE6WwPHiM+TVP 6bdp6Am9h+gN7QxMK8YTC5S2lKjBB/LfNgqPie1aSfYWeDn43Qlm5/1FRFp+HsK6npPDAScrS /V3MxT8VWchryli2IlfKRW6WrAOo0oYPuEv28KGxIwdjl5SUSSj2SHznrOetBz4TrgY0CG3Yh mTCQubmLj/3ycoNnEfqEshwy/NCYlnB47LiZrBd07q/Sa2ayuQyvYkx4p3/Q9E++07q0YCh3b 1ERrb8OOhuGpJJ+5O In an effort to enable -Wcast-function-type in the top-level Makefile to support Control Flow Integrity builds, remove all the function callback casts. To do this, modify the "fw_iso_context_create" function prototype adding a new parameter for the multichannel callback. Also, fix all the function calls accordingly. Signed-off-by: Oscar Carter --- drivers/firewire/core-cdev.c | 12 +++++++----- drivers/firewire/core-iso.c | 10 ++++++++-- drivers/firewire/net.c | 2 +- drivers/media/firewire/firedtv-fw.c | 3 ++- include/linux/firewire.h | 3 ++- sound/firewire/amdtp-stream.c | 2 +- sound/firewire/isight.c | 4 ++-- 7 files changed, 23 insertions(+), 13 deletions(-) -- 2.20.1 diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c index 6e291d8f3a27..cc368b35be2e 100644 --- a/drivers/firewire/core-cdev.c +++ b/drivers/firewire/core-cdev.c @@ -957,7 +957,8 @@ static int ioctl_create_iso_context(struct client *client, union ioctl_arg *arg) { struct fw_cdev_create_iso_context *a = &arg->create_iso_context; struct fw_iso_context *context; - fw_iso_callback_t cb; + fw_iso_callback_t cb_sc = NULL; + fw_iso_mc_callback_t cb_mc = NULL; int ret; BUILD_BUG_ON(FW_CDEV_ISO_CONTEXT_TRANSMIT != FW_ISO_CONTEXT_TRANSMIT || @@ -970,7 +971,7 @@ static int ioctl_create_iso_context(struct client *client, union ioctl_arg *arg) if (a->speed > SCODE_3200 || a->channel > 63) return -EINVAL; - cb = iso_callback; + cb_sc = iso_callback; break; case FW_ISO_CONTEXT_RECEIVE: @@ -978,11 +979,11 @@ static int ioctl_create_iso_context(struct client *client, union ioctl_arg *arg) a->channel > 63) return -EINVAL; - cb = iso_callback; + cb_sc = iso_callback; break; case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL: - cb = (fw_iso_callback_t)iso_mc_callback; + cb_mc = iso_mc_callback; break; default: @@ -990,7 +991,8 @@ static int ioctl_create_iso_context(struct client *client, union ioctl_arg *arg) } context = fw_iso_context_create(client->device->card, a->type, - a->channel, a->speed, a->header_size, cb, client); + a->channel, a->speed, a->header_size, cb_sc, cb_mc, + client); if (IS_ERR(context)) return PTR_ERR(context); if (client->version < FW_CDEV_VERSION_AUTO_FLUSH_ISO_OVERFLOW) diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c index 185b0b78b3d6..3b8e349704f8 100644 --- a/drivers/firewire/core-iso.c +++ b/drivers/firewire/core-iso.c @@ -131,7 +131,8 @@ size_t fw_iso_buffer_lookup(struct fw_iso_buffer *buffer, dma_addr_t completed) struct fw_iso_context *fw_iso_context_create(struct fw_card *card, int type, int channel, int speed, size_t header_size, - fw_iso_callback_t callback, void *callback_data) + fw_iso_callback_t cb_sc, fw_iso_mc_callback_t cb_mc, + void *callback_data) { struct fw_iso_context *ctx; @@ -145,7 +146,12 @@ struct fw_iso_context *fw_iso_context_create(struct fw_card *card, ctx->channel = channel; ctx->speed = speed; ctx->header_size = header_size; - ctx->callback.sc = callback; + + if (cb_sc) + ctx->callback.sc = cb_sc; + else + ctx->callback.mc = cb_mc; + ctx->callback_data = callback_data; return ctx; diff --git a/drivers/firewire/net.c b/drivers/firewire/net.c index 715e491dfbc3..c5cc0a311aa0 100644 --- a/drivers/firewire/net.c +++ b/drivers/firewire/net.c @@ -1136,7 +1136,7 @@ static int fwnet_broadcast_start(struct fwnet_device *dev) context = fw_iso_context_create(dev->card, FW_ISO_CONTEXT_RECEIVE, IEEE1394_BROADCAST_CHANNEL, dev->card->link_speed, 8, - fwnet_receive_broadcast, dev); + fwnet_receive_broadcast, NULL, dev); if (IS_ERR(context)) { retval = PTR_ERR(context); goto failed; diff --git a/drivers/media/firewire/firedtv-fw.c b/drivers/media/firewire/firedtv-fw.c index 97144734eb05..d2940adefd8c 100644 --- a/drivers/media/firewire/firedtv-fw.c +++ b/drivers/media/firewire/firedtv-fw.c @@ -141,7 +141,8 @@ int fdtv_start_iso(struct firedtv *fdtv) ctx->context = fw_iso_context_create(device->card, FW_ISO_CONTEXT_RECEIVE, fdtv->isochannel, - device->max_speed, ISO_HEADER_SIZE, handle_iso, fdtv); + device->max_speed, ISO_HEADER_SIZE, + handle_iso, NULL, fdtv); if (IS_ERR(ctx->context)) { err = PTR_ERR(ctx->context); goto fail_free; diff --git a/include/linux/firewire.h b/include/linux/firewire.h index aec8f30ab200..3a0b5e18e140 100644 --- a/include/linux/firewire.h +++ b/include/linux/firewire.h @@ -452,7 +452,8 @@ struct fw_iso_context { struct fw_iso_context *fw_iso_context_create(struct fw_card *card, int type, int channel, int speed, size_t header_size, - fw_iso_callback_t callback, void *callback_data); + fw_iso_callback_t cb_sc, fw_iso_mc_callback_t cb_mc, + void *callback_data); int fw_iso_context_set_channels(struct fw_iso_context *ctx, u64 *channels); int fw_iso_context_queue(struct fw_iso_context *ctx, struct fw_iso_packet *packet, diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c index 37d38efb4c87..8629ab3e2c64 100644 --- a/sound/firewire/amdtp-stream.c +++ b/sound/firewire/amdtp-stream.c @@ -1093,7 +1093,7 @@ static int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed, s->context = fw_iso_context_create(fw_parent_device(s->unit)->card, type, channel, speed, ctx_header_size, - ctx_cb, ctx_data); + ctx_cb, NULL, ctx_data); if (IS_ERR(s->context)) { err = PTR_ERR(s->context); if (err == -EBUSY) diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c index 6655af53b367..51cc37fca736 100644 --- a/sound/firewire/isight.c +++ b/sound/firewire/isight.c @@ -361,8 +361,8 @@ static int isight_start_streaming(struct isight *isight) isight->context = fw_iso_context_create(isight->device->card, FW_ISO_CONTEXT_RECEIVE, isight->resources.channel, - isight->device->max_speed, - 4, isight_packet, isight); + isight->device->max_speed, 4, + isight_packet, NULL, isight); if (IS_ERR(isight->context)) { err = PTR_ERR(isight->context); isight->context = NULL;