Messages in this thread | | | Subject | Re: [PATCH] intel_th: Mark expected switch fall-throughs | From | "Gustavo A. R. Silva" <> | Date | Wed, 20 Feb 2019 12:12:43 -0600 |
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Hi all,
Friendly ping:
Who can take this?
Thanks -- Gustavo
On 2/12/19 3:43 PM, Gustavo A. R. Silva wrote: > In preparation to enabling -Wimplicit-fallthrough, mark switch > cases where we are expecting to fall through. > > This patch fixes the following warnings: > > drivers/hwtracing/intel_th/sth.c: In function ‘sth_stm_packet’: > drivers/hwtracing/intel_th/sth.c:86:7: warning: this statement may fall through [-Wimplicit-fallthrough=] > reg += 4; > ~~~~^~~~ > drivers/hwtracing/intel_th/sth.c:87:2: note: here > case STP_PACKET_XSYNC: > ^~~~ > drivers/hwtracing/intel_th/sth.c:88:7: warning: this statement may fall through [-Wimplicit-fallthrough=] > reg += 8; > ~~~~^~~~ > drivers/hwtracing/intel_th/sth.c:89:2: note: here > case STP_PACKET_TRIG: > ^~~~ > > Warning level 3 was used: -Wimplicit-fallthrough=3 > > This patch is part of the ongoing efforts to enable > -Wimplicit-fallthrough. > > Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> > --- > drivers/hwtracing/intel_th/sth.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/hwtracing/intel_th/sth.c b/drivers/hwtracing/intel_th/sth.c > index 4b7ae47789d2..3a1f4e650378 100644 > --- a/drivers/hwtracing/intel_th/sth.c > +++ b/drivers/hwtracing/intel_th/sth.c > @@ -84,8 +84,12 @@ static ssize_t notrace sth_stm_packet(struct stm_data *stm_data, > /* Global packets (GERR, XSYNC, TRIG) are sent with register writes */ > case STP_PACKET_GERR: > reg += 4; > + /* fall through */ > + > case STP_PACKET_XSYNC: > reg += 8; > + /* fall through */ > + > case STP_PACKET_TRIG: > if (flags & STP_PACKET_TIMESTAMPED) > reg += 4; >
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