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=-8.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT 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 7B114ECDE30 for ; Wed, 17 Oct 2018 14:29:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3B14A20658 for ; Wed, 17 Oct 2018 14:29:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B14A20658 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=embeddedor.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727665AbeJQWZR (ORCPT ); Wed, 17 Oct 2018 18:25:17 -0400 Received: from gateway30.websitewelcome.com ([192.185.145.3]:14997 "EHLO gateway30.websitewelcome.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726974AbeJQWZR (ORCPT ); Wed, 17 Oct 2018 18:25:17 -0400 Received: from cm14.websitewelcome.com (cm14.websitewelcome.com [100.42.49.7]) by gateway30.websitewelcome.com (Postfix) with ESMTP id 49E9D2ED00 for ; Wed, 17 Oct 2018 09:29:17 -0500 (CDT) Received: from gator4166.hostgator.com ([108.167.133.22]) by cmsmtp with SMTP id CmojgyllakBj6Cmotg39sN; Wed, 17 Oct 2018 09:29:16 -0500 X-Authority-Reason: nr=8 Received: from lfbn-1-466-13.w86-245.abo.wanadoo.fr ([86.245.173.13]:33436 helo=embeddedor) by gator4166.hostgator.com with esmtpa (Exim 4.91) (envelope-from ) id 1gCmoi-003KYO-AT; Wed, 17 Oct 2018 09:28:57 -0500 Date: Wed, 17 Oct 2018 16:28:51 +0200 From: "Gustavo A. R. Silva" To: Ben Skeggs , David Airlie Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-kernel@vger.kernel.org, Kees Cook , "Gustavo A. R. Silva" Subject: [PATCH] drm/nouveau/nvkm: mark expected switch fall-throughs Message-ID: <20181017142851.GA15329@embeddedor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 86.245.173.13 X-Source-L: No X-Exim-ID: 1gCmoi-003KYO-AT X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: lfbn-1-466-13.w86-245.abo.wanadoo.fr (embeddedor) [86.245.173.13]:33436 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 5 X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch aims to suppress 29 missing-break-in-switch false positives. Addresses-Coverity-ID: 1456891 ("Missing break in switch") Addresses-Coverity-ID: 1324063 ("Missing break in switch") Addresses-Coverity-ID: 1324063 ("Missing break in switch") Addresses-Coverity-ID: 141432 ("Missing break in switch") Addresses-Coverity-ID: 141433 ("Missing break in switch") Addresses-Coverity-ID: 141434 ("Missing break in switch") Addresses-Coverity-ID: 141435 ("Missing break in switch") Addresses-Coverity-ID: 141436 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva --- drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.c | 17 +++++++++++++++++ drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv04.c | 1 + drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c | 2 ++ drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv40.c | 1 + drivers/gpu/drm/nouveau/nvkm/subdev/bios/perf.c | 1 + drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c | 1 + drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c | 1 + drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c | 1 + drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv40.c | 2 ++ drivers/gpu/drm/nouveau/nvkm/subdev/mxm/nv50.c | 1 + 10 files changed, 28 insertions(+) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.c index d131cca..10f2aa9 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.c @@ -23,38 +23,55 @@ void pack_hdmi_infoframe(struct packed_hdmi_infoframe *packed_frame, */ case 17: subpack1_high = (raw_frame[16] << 16); + /* fall through */ case 16: subpack1_high |= (raw_frame[15] << 8); + /* fall through */ case 15: subpack1_high |= raw_frame[14]; + /* fall through */ case 14: subpack1_low = (raw_frame[13] << 24); + /* fall through */ case 13: subpack1_low |= (raw_frame[12] << 16); + /* fall through */ case 12: subpack1_low |= (raw_frame[11] << 8); + /* fall through */ case 11: subpack1_low |= raw_frame[10]; + /* fall through */ case 10: subpack0_high = (raw_frame[9] << 16); + /* fall through */ case 9: subpack0_high |= (raw_frame[8] << 8); + /* fall through */ case 8: subpack0_high |= raw_frame[7]; + /* fall through */ case 7: subpack0_low = (raw_frame[6] << 24); + /* fall through */ case 6: subpack0_low |= (raw_frame[5] << 16); + /* fall through */ case 5: subpack0_low |= (raw_frame[4] << 8); + /* fall through */ case 4: subpack0_low |= raw_frame[3]; + /* fall through */ case 3: header = (raw_frame[2] << 16); + /* fall through */ case 2: header |= (raw_frame[1] << 8); + /* fall through */ case 1: header |= raw_frame[0]; + /* fall through */ case 0: break; } diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv04.c index 49ef7e5..7f1adab 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv04.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv04.c @@ -122,6 +122,7 @@ nv04_dmaobj_new(struct nvkm_dma *dma, const struct nvkm_oclass *oclass, break; case NV_MEM_ACCESS_WO: dmaobj->flags0 |= 0x00008000; + /* fall through */ case NV_MEM_ACCESS_RW: dmaobj->flags2 |= 0x00000002; break; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c index ad707ff..93493b3 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c @@ -117,8 +117,10 @@ nv04_fifo_swmthd(struct nvkm_device *device, u32 chid, u32 addr, u32 data) switch (mthd) { case 0x0000 ... 0x0000: /* subchannel's engine -> software */ nvkm_wr32(device, 0x003280, (engine &= ~mask)); + /* fall through */ case 0x0180 ... 0x01fc: /* handle -> instance */ data = nvkm_rd32(device, 0x003258) & 0x0000ffff; + /* fall through */ case 0x0100 ... 0x017c: case 0x0200 ... 0x1ffc: /* pass method down to sw */ if (!(engine & mask) && sw) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv40.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv40.c index 8c7ba32..47c1682 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv40.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv40.c @@ -81,6 +81,7 @@ nv40_fifo_init(struct nvkm_fifo *base) case 0x49: case 0x4b: nvkm_wr32(device, 0x002230, 0x00000001); + /* fall through */ case 0x40: case 0x41: case 0x42: diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/perf.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/perf.c index c306835..7112992 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/perf.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/perf.c @@ -135,6 +135,7 @@ nvbios_perfEp(struct nvkm_bios *bios, int idx, break; case 0x30: info->script = nvbios_rd16(bios, perf + 0x02); + /* fall through */ case 0x35: info->fanspeed = nvbios_rd08(bios, perf + 0x06); info->voltage = nvbios_rd08(bios, perf + 0x07); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c index e6e804c..bda6cc9 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c @@ -134,6 +134,7 @@ pll_map(struct nvkm_bios *bios) device->chipset == 0xaa || device->chipset == 0xac) return g84_pll_mapping; + /* fall through */ default: return NULL; } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c index ba6a868d..40e5645 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c @@ -90,6 +90,7 @@ nvkm_cstate_valid(struct nvkm_clk *clk, struct nvkm_cstate *cstate, case NVKM_CLK_BOOST_NONE: if (clk->base_khz && freq > clk->base_khz) return false; + /* fall through */ case NVKM_CLK_BOOST_BIOS: if (clk->boost_khz && freq > clk->boost_khz) return false; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c index 1c21b8b..4f00023 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c @@ -363,6 +363,7 @@ mcp77_clk_prog(struct nvkm_clk *base) switch (clk->vsrc) { case nv_clk_src_cclk: mast |= 0x00400000; + /* fall through */ default: nvkm_wr32(device, 0x4600, clk->vdiv); } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv40.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv40.c index 2b12e38..5f4c287 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv40.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv40.c @@ -131,11 +131,13 @@ nv40_ram_prog(struct nvkm_ram *base) nvkm_mask(device, 0x00402c, 0xc0771100, ram->ctrl); nvkm_wr32(device, 0x004048, ram->coef); nvkm_wr32(device, 0x004030, ram->coef); + /* fall through */ case 0x43: case 0x49: case 0x4b: nvkm_mask(device, 0x004038, 0xc0771100, ram->ctrl); nvkm_wr32(device, 0x00403c, ram->coef); + /* fall through */ default: nvkm_mask(device, 0x004020, 0xc0771100, ram->ctrl); nvkm_wr32(device, 0x004024, ram->coef); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/nv50.c index 844971e..2a6150a 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/nv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/nv50.c @@ -159,6 +159,7 @@ mxm_dcb_sanitise_entry(struct nvkm_bios *bios, void *data, int idx, u16 pdcb) break; case 0x0e: /* eDP, falls through to DPint */ ctx.outp[1] |= 0x00010000; + /* fall through */ case 0x07: /* DP internal, wtf is this?? HP8670w */ ctx.outp[1] |= 0x00000004; /* use_power_scripts? */ type = DCB_CONNECTOR_eDP; -- 2.7.4