[v3] Strict disable implicit fallthrough

[RFC PATCH v3 15/78] accel/tcg: add fallthrough pseudo-keyword

Emmanouil Pitsidianakis posted 78 patches 2 years, 3 months ago

Diff against v1 v2
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Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, Gerd Hoffmann <kraxel@redhat.com>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, Christian Schoenebeck <qemu_oss@crudebyte.com>, John Snow <jsnow@redhat.com>, Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Fam Zheng <fam@euphon.net>, Ronnie Sahlberg <ronniesahlberg@gmail.com>, Peter Lieven <pl@kamp.de>, Jeff Cody <codyprime@gmail.com>, Yuval Shaia <yuval.shaia.ml@gmail.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Michael S. Tsirkin" <mst@redhat.com>, Raphael Norwitz <raphael.norwitz@nutanix.com>, Laurent Vivier <laurent@vivier.eu>, Yoshinori Sato <ysato@users.sourceforge.jp>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, "Alex Bennée" <alex.bennee@linaro.org>, "Daniel P. Berrangé" <berrange@redhat.com>, Thomas Huth <thuth@redhat.com>, Markus Armbruster <armbru@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Juan Quintela <quintela@redhat.com>, Aurelien Jarno <aurelien@aurel32.net>, Peter Maydell <peter.maydell@linaro.org>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, "Cédric Le Goater" <clg@kaod.org>, Andrew Jeffery <andrew@aj.id.au>, Joel Stanley <joel@jms.id.au>, Alistair Francis <alistair@alistair23.me>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Eric Auger <eric.auger@redhat.com>, Stefano Stabellini <sstabellini@kernel.org>, Anthony Perard <anthony.perard@citrix.com>, Paul Durrant <paul@xen.org>, Jonathan Cameron <jonathan.cameron@huawei.com>, Fan Ni <fan.ni@samsung.com>, Peter Xu <peterx@redhat.com>, Jason Wang <jasowang@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, David Woodhouse <dwmw2@infradead.org>, Corey Minyard <minyard@acm.org>, Paul Burton <paulburton@kernel.org>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Pavel Pisa <pisa@cmp.felk.cvut.cz>, Vikram Garhwal <fnu.vikram@xilinx.com>, Akihiko Odaki <akihiko.odaki@daynix.com>, Sriram Yagnaraman <sriram.yagnaraman@est.tech>, Dmitry Fleytman <dmitry.fleytman@gmail.com>, Keith Busch <kbusch@kernel.org>, Klaus Jensen <its@irrelevant.dk>, Nicholas Piggin <npiggin@gmail.com>, "Frédéric Barrat" <fbarrat@linux.ibm.com>, Huai-Cheng Kuo <hchkuo@avery-design.com.tw>, Chris Browy <cbrowy@avery-design.com>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Harsh Prateek Bora <harshpb@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Matthew Rosato <mjrosato@linux.ibm.com>, Hannes Reinecke <hare@suse.com>, Bin Meng <bin.meng@windriver.com>, Tyrone Ting <kfting@nuvoton.com>, Hao Wu <wuhaotsh@google.com>, Magnus Damm <magnus.damm@gmail.com>, Fabiano Rosas <farosas@suse.de>, Leonardo Bras <leobras@redhat.com>, Eric Blake <eblake@redhat.com>, Michael Roth <michael.roth@amd.com>, Konstantin Kostiuk <kkostiuk@redhat.com>, Michael Rolnik <mrolnik@gmail.com>, Alessandro Di Federico <ale@rev.ng>, Anton Johansson <anjo@rev.ng>, Cameron Esfahani <dirty@apple.com>, Roman Bolshakov <rbolshakov@ddn.com>, Marcelo Tosatti <mtosatti@redhat.com>, Song Gao <gaosong@loongson.cn>, Huacai Chen <chenhuacai@kernel.org>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Chris Wulff <crwulff@gmail.com>, Marek Vasut <marex@denx.de>, Stafford Horne <shorne@gmail.com>, Palmer Dabbelt <palmer@dabbelt.com>, Weiwei Li <liweiwei@iscas.ac.cn>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Max Filippov <jcmvbkbc@gmail.com>, WANG Xuerui <git@xen0n.name>, Stefan Weil <sw@weilnetz.de>

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[RFC PATCH v3 15/78] accel/tcg: add fallthrough pseudo-keyword

Posted by Emmanouil Pitsidianakis 2 years, 3 months ago

In preparation of raising -Wimplicit-fallthrough to 5, replace all
fall-through comments with the fallthrough attribute pseudo-keyword.

Signed-off-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
---
 accel/tcg/cputlb.c             | 4 ++--
 accel/tcg/ldst_atomicity.c.inc | 2 +-
 accel/tcg/plugin-gen.c         | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index b8c5e345b8..92b7ab529a 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -2244,7 +2244,7 @@ static uint64_t do_ld_beN(CPUState *cpu, MMULookupPageData *p,
                 return do_ld_whole_be8(cpu, ra, p, ret_be);
             }
         }
-        /* fall through */
+        fallthrough;
 
     case MO_ATOM_IFALIGN:
     case MO_ATOM_WITHIN16:
@@ -2664,7 +2664,7 @@ static uint64_t do_st_leN(CPUState *cpu, MMULookupPageData *p,
                 cpu_loop_exit_atomic(cpu, ra);
             }
         }
-        /* fall through */
+        fallthrough;
 
     case MO_ATOM_IFALIGN:
     case MO_ATOM_WITHIN16:
diff --git a/accel/tcg/ldst_atomicity.c.inc b/accel/tcg/ldst_atomicity.c.inc
index 1cf5b92166..3752f74214 100644
--- a/accel/tcg/ldst_atomicity.c.inc
+++ b/accel/tcg/ldst_atomicity.c.inc
@@ -41,7 +41,7 @@ static int required_atomicity(CPUState *cpu, uintptr_t p, MemOp memop)
 
     case MO_ATOM_IFALIGN_PAIR:
         size = half;
-        /* fall through */
+        fallthrough;
 
     case MO_ATOM_IFALIGN:
         tmp = (1 << size) - 1;
diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c
index d31c9993ea..ba9a8c8789 100644
--- a/accel/tcg/plugin-gen.c
+++ b/accel/tcg/plugin-gen.c
@@ -190,7 +190,7 @@ static void plugin_gen_empty_callback(enum plugin_gen_from from)
          */
         gen_wrapped(from, PLUGIN_GEN_ENABLE_MEM_HELPER,
                     gen_empty_mem_helper);
-        /* fall through */
+        fallthrough;
     case PLUGIN_GEN_FROM_TB:
         gen_wrapped(from, PLUGIN_GEN_CB_UDATA, gen_empty_udata_cb);
         gen_wrapped(from, PLUGIN_GEN_CB_INLINE, gen_empty_inline_cb);
-- 
2.39.2