| Message ID | 20210519125352.7991-1-thunder.leizhen@huawei.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/1] mISDN: Mark local variable 'incomplete' as __maybe_unused in dsp_pipeline_build() | expand |
On Wed, May 19, 2021 at 08:53:52PM +0800, Zhen Lei wrote: > GCC reports the following warning with W=1: > > drivers/isdn/mISDN/dsp_pipeline.c:221:6: warning: > variable 'incomplete' set but not used [-Wunused-but-set-variable] > 221 | int incomplete = 0, found = 0; > | ^~~~~~~~~~ > > This variable is used only when macro PIPELINE_DEBUG is defined. That define is commented 13 years ago and can be seen as a dead code that should be removed. Thanks > > Reported-by: Hulk Robot <hulkci@huawei.com> > Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> > --- > drivers/isdn/mISDN/dsp_pipeline.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c > index 40588692cec7..6a31f6879da8 100644 > --- a/drivers/isdn/mISDN/dsp_pipeline.c > +++ b/drivers/isdn/mISDN/dsp_pipeline.c > @@ -218,7 +218,7 @@ void dsp_pipeline_destroy(struct dsp_pipeline *pipeline) > > int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg) > { > - int incomplete = 0, found = 0; > + int __maybe_unused incomplete = 0, found = 0; > char *dup, *tok, *name, *args; > struct dsp_element_entry *entry, *n; > struct dsp_pipeline_entry *pipeline_entry; > -- > 2.25.1 > >
On 2021/5/19 23:45, Leon Romanovsky wrote: > On Wed, May 19, 2021 at 08:53:52PM +0800, Zhen Lei wrote: >> GCC reports the following warning with W=1: >> >> drivers/isdn/mISDN/dsp_pipeline.c:221:6: warning: >> variable 'incomplete' set but not used [-Wunused-but-set-variable] >> 221 | int incomplete = 0, found = 0; >> | ^~~~~~~~~~ >> >> This variable is used only when macro PIPELINE_DEBUG is defined. > > That define is commented 13 years ago and can be seen as a dead code > that should be removed. OK, I will remove it in V2. Actually, every time incomplete=1, a KERN_ERR message is printed in advance. The only new information is the 'cfg'. > > Thanks > >> >> Reported-by: Hulk Robot <hulkci@huawei.com> >> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> >> --- >> drivers/isdn/mISDN/dsp_pipeline.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c >> index 40588692cec7..6a31f6879da8 100644 >> --- a/drivers/isdn/mISDN/dsp_pipeline.c >> +++ b/drivers/isdn/mISDN/dsp_pipeline.c >> @@ -218,7 +218,7 @@ void dsp_pipeline_destroy(struct dsp_pipeline *pipeline) >> >> int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg) >> { >> - int incomplete = 0, found = 0; >> + int __maybe_unused incomplete = 0, found = 0; >> char *dup, *tok, *name, *args; >> struct dsp_element_entry *entry, *n; >> struct dsp_pipeline_entry *pipeline_entry; >> -- >> 2.25.1 >> >> > > . >
On 2021/5/20 9:09, Leizhen (ThunderTown) wrote: > > > On 2021/5/19 23:45, Leon Romanovsky wrote: >> On Wed, May 19, 2021 at 08:53:52PM +0800, Zhen Lei wrote: >>> GCC reports the following warning with W=1: >>> >>> drivers/isdn/mISDN/dsp_pipeline.c:221:6: warning: >>> variable 'incomplete' set but not used [-Wunused-but-set-variable] >>> 221 | int incomplete = 0, found = 0; >>> | ^~~~~~~~~~ >>> >>> This variable is used only when macro PIPELINE_DEBUG is defined. >> >> That define is commented 13 years ago and can be seen as a dead code >> that should be removed. > > OK, I will remove it in V2. Actually, every time incomplete=1, a KERN_ERR message > is printed in advance. The only new information is the 'cfg'. Wow, Do you mean remove all "#ifdef PIPELINE_DEBUG" debug information? I will clean them. > >> >> Thanks >> >>> >>> Reported-by: Hulk Robot <hulkci@huawei.com> >>> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> >>> --- >>> drivers/isdn/mISDN/dsp_pipeline.c | 2 +- >>> 1 file changed, 1 insertion(+), 1 deletion(-) >>> >>> diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c >>> index 40588692cec7..6a31f6879da8 100644 >>> --- a/drivers/isdn/mISDN/dsp_pipeline.c >>> +++ b/drivers/isdn/mISDN/dsp_pipeline.c >>> @@ -218,7 +218,7 @@ void dsp_pipeline_destroy(struct dsp_pipeline *pipeline) >>> >>> int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg) >>> { >>> - int incomplete = 0, found = 0; >>> + int __maybe_unused incomplete = 0, found = 0; >>> char *dup, *tok, *name, *args; >>> struct dsp_element_entry *entry, *n; >>> struct dsp_pipeline_entry *pipeline_entry; >>> -- >>> 2.25.1 >>> >>> >> >> . >>
diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c index 40588692cec7..6a31f6879da8 100644 --- a/drivers/isdn/mISDN/dsp_pipeline.c +++ b/drivers/isdn/mISDN/dsp_pipeline.c @@ -218,7 +218,7 @@ void dsp_pipeline_destroy(struct dsp_pipeline *pipeline) int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg) { - int incomplete = 0, found = 0; + int __maybe_unused incomplete = 0, found = 0; char *dup, *tok, *name, *args; struct dsp_element_entry *entry, *n; struct dsp_pipeline_entry *pipeline_entry;
GCC reports the following warning with W=1: drivers/isdn/mISDN/dsp_pipeline.c:221:6: warning: variable 'incomplete' set but not used [-Wunused-but-set-variable] 221 | int incomplete = 0, found = 0; | ^~~~~~~~~~ This variable is used only when macro PIPELINE_DEBUG is defined. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> --- drivers/isdn/mISDN/dsp_pipeline.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.25.1