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From:   Paul Burton <paul.burton@mips.com>
To:     Stephen Rothwell <sfr@canb.auug.org.au>
CC:     Ralf Baechle <ralf@linux-mips.org>,
        Paul Burton <pburton@wavecomp.com>,
        James Hogan <jhogan@kernel.org>,
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        Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Jiri Olsa <jolsa@redhat.com>,
        Namhyung Kim <namhyung@kernel.org>,
        "Gustavo A. R. Silva" <gustavo@embeddedor.com>,
        Kees Cook <keescook@chromium.org>,
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        "linux-mips@vger.kernel.org" <linux-mips@vger.kernel.org>,
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Subject: Re: [PATCH] MIPS: perf events: handle switch statement falling
 through  warnings
Thread-Topic: [PATCH] MIPS: perf events: handle switch statement falling
 through  warnings
Thread-Index: AQHVOv+kczWDxEXrFUGBgYR+rnlhhg==
Date:   Mon, 15 Jul 2019 11:22:53 +0000
Message-ID: <MWHPR2201MB12777D68602F497F2CE464D9C1CF0@MWHPR2201MB1277.namprd22.prod.outlook.com>
References: <20190715201540.1e4bb96a@canb.auug.org.au>
In-Reply-To: <20190715201540.1e4bb96a@canb.auug.org.au>
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Hello,

Stephen Rothwell wrote:
> Now that we build with -Wimplicit-fallthrough=3D3, some warnings are
> produced in the arch/mips perf events code that are promoted to errors:
>=20
> arch/mips/kernel/perf_event_mipsxx.c:792:3: error: this statement may fal=
l through [-Werror=3Dimplicit-fallthrough=3D]
> arch/mips/kernel/perf_event_mipsxx.c:795:3: error: this statement may fal=
l through [-Werror=3Dimplicit-fallthrough=3D]
> arch/mips/kernel/perf_event_mipsxx.c:798:3: error: this statement may fal=
l through [-Werror=3Dimplicit-fallthrough=3D]
> arch/mips/kernel/perf_event_mipsxx.c:1407:6: error: this statement may fa=
ll through [-Werror=3Dimplicit-fallthrough=3D]
>=20
> Assume the fall throughs are deliberate amd annotate/eliminate them.
>=20
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
> Cc: Jiri Olsa <jolsa@redhat.com>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Cc: Gustavo A. R. Silva <gustavo@embeddedor.com>
> Cc: Kees Cook <keescook@chromium.org>
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Applied (with some tweaks) to mips-next.

Thanks,
    Paul

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