Re: Re: [PATCH 2/2] arm64/kernel: improve the coding style

[戴志远]

I am very sorry, my English cooperation is poor, just want to contribute。

2021-02-03 19:41:58 "Mark Rutland" <mark.rutland@xxxxxxx> 写道：
> On Wed, Feb 03, 2021 at 01:48:19PM +0800, Zhiyuan Dai wrote:
> > Just improve the coding style.
> > 
> > Signed-off-by: Zhiyuan Dai <daizhiyuan@xxxxxxxxxxxxxx>
> 
> This is terse and doesn't tell the reader what to expect. It would be
> better to say something more specific, e.g.
> 
> | arm64: improve whitespace
> |
> | In a few places we don't have whitespace between macro parameters,
> | which makes them hard to read. This patch adds whitespace to clearly
> | separate the parameters.
> |
> | In a few places we have unnecessary whitespace around unary operators,
> | which is confusing, This patch removes the unnecessary whitespace.
> 
> ... which more clearly justifies the change.
> 
> The patch itself looks sane to me (and the unary operator cleanup is
> certianly nice), so with that wording:
> 
> Acked-by: Mark Rutland <mark.rutland@xxxxxxx>
> 
> Thanks,
> Mark.
> 
> > ---
> >  arch/arm64/kernel/alternative.c | 2 +-
> >  arch/arm64/kernel/module-plts.c | 2 +-
> >  arch/arm64/kernel/perf_event.c  | 2 +-
> >  arch/arm64/kernel/process.c     | 4 ++--
> >  4 files changed, 5 insertions(+), 5 deletions(-)
> > 
> > diff --git a/arch/arm64/kernel/alternative.c b/arch/arm64/kernel/alternative.c
> > index a57cffb..1184c44 100644
> > --- a/arch/arm64/kernel/alternative.c
> > +++ b/arch/arm64/kernel/alternative.c
> > @@ -17,7 +17,7 @@
> >  #include <asm/sections.h>
> >  #include <linux/stop_machine.h>
> >  
> > -#define __ALT_PTR(a,f)		((void *)&(a)->f + (a)->f)
> > +#define __ALT_PTR(a, f)		((void *)&(a)->f + (a)->f)
> >  #define ALT_ORIG_PTR(a)		__ALT_PTR(a, orig_offset)
> >  #define ALT_REPL_PTR(a)		__ALT_PTR(a, alt_offset)
> >  
> > diff --git a/arch/arm64/kernel/module-plts.c b/arch/arm64/kernel/module-plts.c
> > index 2e22443..e53493d 100644
> > --- a/arch/arm64/kernel/module-plts.c
> > +++ b/arch/arm64/kernel/module-plts.c
> > @@ -131,7 +131,7 @@ u64 module_emit_veneer_for_adrp(struct module *mod, Elf64_Shdr *sechdrs,
> >  }
> >  #endif
> >  
> > -#define cmp_3way(a,b)	((a) < (b) ? -1 : (a) > (b))
> > +#define cmp_3way(a, b)	((a) < (b) ? -1 : (a) > (b))
> >  
> >  static int cmp_rela(const void *a, const void *b)
> >  {
> > diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
> > index 3605f77a..d1fec4a 100644
> > --- a/arch/arm64/kernel/perf_event.c
> > +++ b/arch/arm64/kernel/perf_event.c
> > @@ -810,7 +810,7 @@ static int armv8pmu_get_single_idx(struct pmu_hw_events *cpuc,
> >  {
> >  	int idx;
> >  
> > -	for (idx = ARMV8_IDX_COUNTER0; idx < cpu_pmu->num_events; idx ++) {
> > +	for (idx = ARMV8_IDX_COUNTER0; idx < cpu_pmu->num_events; idx++) {
> >  		if (!test_and_set_bit(idx, cpuc->used_mask))
> >  			return idx;
> >  	}
> > diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
> > index 6616486..4cc1ccc 100644
> > --- a/arch/arm64/kernel/process.c
> > +++ b/arch/arm64/kernel/process.c
> > @@ -304,7 +304,7 @@ void __show_regs(struct pt_regs *regs)
> >  	}
> >  }
> >  
> > -void show_regs(struct pt_regs * regs)
> > +void show_regs(struct pt_regs *regs)
> >  {
> >  	__show_regs(regs);
> >  	dump_backtrace(regs, NULL, KERN_DEFAULT);
> > @@ -587,7 +587,7 @@ unsigned long get_wchan(struct task_struct *p)
> >  			ret = frame.pc;
> >  			goto out;
> >  		}
> > -	} while (count ++ < 16);
> > +	} while (count++ < 16);
> >  
> >  out:
> >  	put_task_stack(p);
> > -- 
> > 1.8.3.1
> >