| Message ID | 20201028041819.2169003-7-kuhn.chenqun@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | silence the compiler warnings | expand |
ср, 28 окт. 2020 г., 5:19 Chen Qun <kuhn.chenqun@huawei.com>: > When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed > warning: > target/sparc/win_helper.c: In function ‘get_gregset’: > target/sparc/win_helper.c:304:9: warning: this statement may fall through > [-Wimplicit-fallthrough=] > 304 | trace_win_helper_gregset_error(pstate); > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > target/sparc/win_helper.c:306:5: note: here > 306 | case 0: > | ^~~~ > > Add the corresponding "fall through" comment to fix it. > > Reported-by: Euler Robot <euler.robot@huawei.com> > Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com> > Reviewed-by: Artyom Tarasenko <atar4qemu@gmail.com> --- > Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> > Cc: Artyom Tarasenko <atar4qemu@gmail.com> > --- > target/sparc/win_helper.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/target/sparc/win_helper.c b/target/sparc/win_helper.c > index 8290a21142..32eacc05e6 100644 > --- a/target/sparc/win_helper.c > +++ b/target/sparc/win_helper.c > @@ -303,6 +303,7 @@ static inline uint64_t *get_gregset(CPUSPARCState > *env, uint32_t pstate) > default: > trace_win_helper_gregset_error(pstate); > /* pass through to normal set of global registers */ > + /* fall through */ > case 0: > return env->bgregs; > case PS_AG: > -- > 2.27.0 > >
On 10/28/20 5:18 AM, Chen Qun wrote: > When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning: > target/sparc/win_helper.c: In function ‘get_gregset’: > target/sparc/win_helper.c:304:9: warning: this statement may fall through [-Wimplicit-fallthrough=] > 304 | trace_win_helper_gregset_error(pstate); > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > target/sparc/win_helper.c:306:5: note: here > 306 | case 0: > | ^~~~ > > Add the corresponding "fall through" comment to fix it. > > Reported-by: Euler Robot <euler.robot@huawei.com> > Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com> > --- > Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> > Cc: Artyom Tarasenko <atar4qemu@gmail.com> > --- > target/sparc/win_helper.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/target/sparc/win_helper.c b/target/sparc/win_helper.c > index 8290a21142..32eacc05e6 100644 > --- a/target/sparc/win_helper.c > +++ b/target/sparc/win_helper.c > @@ -303,6 +303,7 @@ static inline uint64_t *get_gregset(CPUSPARCState *env, uint32_t pstate) > default: > trace_win_helper_gregset_error(pstate); > /* pass through to normal set of global registers */ > + /* fall through */ Can you keep the comment, doing s/pass/fall/? > case 0: > return env->bgregs; > case PS_AG: >
> -----Original Message----- > From: Philippe Mathieu-Daudé [mailto:philippe.mathieu.daude@gmail.com] > On Behalf Of Philippe Mathieu-Daudé > Sent: Wednesday, October 28, 2020 5:51 PM > To: Chenqun (kuhn) <kuhn.chenqun@huawei.com>; qemu-devel@nongnu.org; > qemu-trivial@nongnu.org > Cc: Zhanghailiang <zhang.zhanghailiang@huawei.com>; Mark Cave-Ayland > <mark.cave-ayland@ilande.co.uk>; ganqixin <ganqixin@huawei.com>; Euler > Robot <euler.robot@huawei.com>; Artyom Tarasenko > <atar4qemu@gmail.com> > Subject: Re: [PATCH 6/9] target/sparc/win_helper: silence the compiler > warnings > > On 10/28/20 5:18 AM, Chen Qun wrote: > > When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed > warning: > > target/sparc/win_helper.c: In function ‘get_gregset’: > > target/sparc/win_helper.c:304:9: warning: this statement may fall through > [-Wimplicit-fallthrough=] > > 304 | trace_win_helper_gregset_error(pstate); > > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > target/sparc/win_helper.c:306:5: note: here > > 306 | case 0: > > | ^~~~ > > > > Add the corresponding "fall through" comment to fix it. > > > > Reported-by: Euler Robot <euler.robot@huawei.com> > > Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com> > > --- > > Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> > > Cc: Artyom Tarasenko <atar4qemu@gmail.com> > > --- > > target/sparc/win_helper.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/target/sparc/win_helper.c b/target/sparc/win_helper.c > > index 8290a21142..32eacc05e6 100644 > > --- a/target/sparc/win_helper.c > > +++ b/target/sparc/win_helper.c > > @@ -303,6 +303,7 @@ static inline uint64_t *get_gregset(CPUSPARCState > *env, uint32_t pstate) > > default: > > trace_win_helper_gregset_error(pstate); > > /* pass through to normal set of global registers */ > > + /* fall through */ > > Can you keep the comment, doing s/pass/fall/? > That looks good, too. Thanks, Chen Qun > > case 0: > > return env->bgregs; > > case PS_AG: > >
diff --git a/target/sparc/win_helper.c b/target/sparc/win_helper.c index 8290a21142..32eacc05e6 100644 --- a/target/sparc/win_helper.c +++ b/target/sparc/win_helper.c @@ -303,6 +303,7 @@ static inline uint64_t *get_gregset(CPUSPARCState *env, uint32_t pstate) default: trace_win_helper_gregset_error(pstate); /* pass through to normal set of global registers */ + /* fall through */ case 0: return env->bgregs; case PS_AG:
When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning: target/sparc/win_helper.c: In function ‘get_gregset’: target/sparc/win_helper.c:304:9: warning: this statement may fall through [-Wimplicit-fallthrough=] 304 | trace_win_helper_gregset_error(pstate); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ target/sparc/win_helper.c:306:5: note: here 306 | case 0: | ^~~~ Add the corresponding "fall through" comment to fix it. Reported-by: Euler Robot <euler.robot@huawei.com> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com> --- Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Artyom Tarasenko <atar4qemu@gmail.com> --- target/sparc/win_helper.c | 1 + 1 file changed, 1 insertion(+)