Messages in this thread | | | From | "Verma, Vishal L" <> | Subject | Re: [PATCH v2] ACPI: nfit: remove redundant assignment if nfit_mem found | Date | Fri, 10 Aug 2018 23:45:35 +0000 |
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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)
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