* [PATCH v2] ACPI: nfit: remove redundant assignment if nfit_mem found @ 2018-08-02 8:44 oceanhehy 2018-08-10 23:45 ` Verma, Vishal L 0 siblings, 1 reply; 3+ messages in thread From: oceanhehy @ 2018-08-02 8:44 UTC (permalink / raw) To: dan.j.williams, ross.zwisler, vishal.l.verma, dave.jiang, rjw, lenb Cc: linux-acpi, Ocean He, linux-kernel, linux-nvdimm From: Ocean He <hehy1@lenovo.com> When nfit_mem is found via list_for_each_entry, it has already been assigned valid value. There is no need to assign it again in the following codes. Signed-off-by: Ocean He <hehy1@lenovo.com> --- v1: https://patchwork.kernel.org/patch/10553277/ v2: Sorry for noise. I got an email problem, so I have to resend to loop linux-nvdimm@lists.01.org. drivers/acpi/nfit/core.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 7c47900..85dde54 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -1048,9 +1048,7 @@ static int __nfit_mem_init(struct acpi_nfit_desc *acpi_desc, break; } - if (found) - nfit_mem = found; - else { + if (!found) { nfit_mem = devm_kzalloc(acpi_desc->dev, sizeof(*nfit_mem), GFP_KERNEL); if (!nfit_mem) -- 1.8.3.1 _______________________________________________ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm ^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] ACPI: nfit: remove redundant assignment if nfit_mem found 2018-08-02 8:44 [PATCH v2] ACPI: nfit: remove redundant assignment if nfit_mem found oceanhehy @ 2018-08-10 23:45 ` Verma, Vishal L 2018-08-13 2:53 ` [External] " Ocean HY1 He 0 siblings, 1 reply; 3+ messages in thread From: Verma, Vishal L @ 2018-08-10 23:45 UTC (permalink / raw) To: Williams, Dan J, ross.zwisler, oceanhehy, Jiang, Dave, lenb, rjw Cc: linux-acpi, hehy1, linux-kernel, linux-nvdimm On Thu, 2018-08-02 at 04:44 -0400, oceanhehy@gmail.com wrote: > From: Ocean He <hehy1@lenovo.com> > > When nfit_mem is found via list_for_each_entry, it has already been > assigned valid value. There is no need to assign it again in the > following > codes. > > Signed-off-by: Ocean He <hehy1@lenovo.com> > --- > v1: https://patchwork.kernel.org/patch/10553277/ > v2: Sorry for noise. I got an email problem, so I have to resend to > loop > linux-nvdimm@lists.01.org. > > drivers/acpi/nfit/core.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c > index 7c47900..85dde54 100644 > --- a/drivers/acpi/nfit/core.c > +++ b/drivers/acpi/nfit/core.c > @@ -1048,9 +1048,7 @@ static int __nfit_mem_init(struct > acpi_nfit_desc *acpi_desc, > break; > } > > - if (found) > - nfit_mem = found; > - else { > + if (!found) { Hi Ocean, While this is technically correct, the old way was easier to read. We loop through and find the matching handle. If we found one, then nfit_mem was whatever was found. If not, we allocate it. With this change, one has to go grok the list_for_.. loop to figure out where nfit_mem is coming from. I'd personally prefer to keep the existing way.. > nfit_mem = devm_kzalloc(acpi_desc->dev, > sizeof(*nfit_mem), > GFP_KERNEL); > if (!nfit_mem) _______________________________________________ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm ^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: [External] Re: [PATCH v2] ACPI: nfit: remove redundant assignment if nfit_mem found 2018-08-10 23:45 ` Verma, Vishal L @ 2018-08-13 2:53 ` Ocean HY1 He 0 siblings, 0 replies; 3+ messages in thread From: Ocean HY1 He @ 2018-08-13 2:53 UTC (permalink / raw) To: Verma, Vishal L, Williams, Dan J, ross.zwisler, oceanhehy, Jiang, Dave, lenb, rjw Cc: linux-acpi, linux-kernel, linux-nvdimm > -----Original Message----- > From: Verma, Vishal L <vishal.l.verma@intel.com> > Sent: Saturday, August 11, 2018 7:46 AM > To: Williams, Dan J <dan.j.williams@intel.com>; ross.zwisler@linux.intel.com; > oceanhehy@gmail.com; Jiang, Dave <dave.jiang@intel.com>; lenb@kernel.org; > rjw@rjwysocki.net > Cc: linux-kernel@vger.kernel.org; linux-nvdimm@lists.01.org; linux- > acpi@vger.kernel.org; Ocean HY1 He <hehy1@lenovo.com> > Subject: [External] Re: [PATCH v2] ACPI: nfit: remove redundant assignment if > nfit_mem found > > > On Thu, 2018-08-02 at 04:44 -0400, oceanhehy@gmail.com wrote: > > From: Ocean He <hehy1@lenovo.com> > > > > When nfit_mem is found via list_for_each_entry, it has already been > > assigned valid value. There is no need to assign it again in the > > following > > codes. > > > > Signed-off-by: Ocean He <hehy1@lenovo.com> > > --- > > v1: https://patchwork.kernel.org/patch/10553277/ > > v2: Sorry for noise. I got an email problem, so I have to resend to > > loop > > linux-nvdimm@lists.01.org. > > > > drivers/acpi/nfit/core.c | 4 +--- > > 1 file changed, 1 insertion(+), 3 deletions(-) > > > > diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c > > index 7c47900..85dde54 100644 > > --- a/drivers/acpi/nfit/core.c > > +++ b/drivers/acpi/nfit/core.c > > @@ -1048,9 +1048,7 @@ static int __nfit_mem_init(struct > > acpi_nfit_desc *acpi_desc, > > break; > > } > > > > - if (found) > > - nfit_mem = found; > > - else { > > + if (!found) { > > Hi Ocean, > > While this is technically correct, the old way was easier to read. We > loop through and find the matching handle. If we found one, then > nfit_mem was whatever was found. If not, we allocate it. > > With this change, one has to go grok the list_for_.. loop to figure out > where nfit_mem is coming from. I'd personally prefer to keep the > existing way.. > Hi Verma, You're right that it took me some time to find out where nfit_mem was found, when I look these codes at first. It's reasonable to keep the existing way for well readability. Thanks, Ocean. > > nfit_mem = devm_kzalloc(acpi_desc->dev, > > sizeof(*nfit_mem), > > GFP_KERNEL); > > if (!nfit_mem) _______________________________________________ Linux-nvdimm mailing list Linux-nvdimm@lists.01.org https://lists.01.org/mailman/listinfo/linux-nvdimm ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-08-13 2:53 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2018-08-02 8:44 [PATCH v2] ACPI: nfit: remove redundant assignment if nfit_mem found oceanhehy 2018-08-10 23:45 ` Verma, Vishal L 2018-08-13 2:53 ` [External] " Ocean HY1 He
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