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SubjectRe: [PATCH 2/3] x86/intel_rdt: Trim whitespace while parsing schemata input
On Wed, 19 Apr 2017, Vikas Shivappa wrote:

> Schemata is displayed in tabular format which introduces some whitespace
> to show data in a tabular format. If user wants to input the same data
> that is displayed, the parsing fails. Trim the leading and trailing
> whitespace to help parse such data.
>
> Reported-by: Prakhya, Sai Praneeth <sai.praneeth.prakhya@intel.com>
> Signed-off-by: Vikas Shivappa <vikas.shivappa@linux.intel.com>
> Tested-by: Prakhya, Sai Praneeth <sai.praneeth.prakhya@intel.com>
> ---
> arch/x86/kernel/cpu/intel_rdt_schemata.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/kernel/cpu/intel_rdt_schemata.c b/arch/x86/kernel/cpu/intel_rdt_schemata.c
> index 9467a00..3cfa1ca 100644
> --- a/arch/x86/kernel/cpu/intel_rdt_schemata.c
> +++ b/arch/x86/kernel/cpu/intel_rdt_schemata.c
> @@ -143,7 +143,7 @@ static int parse_line(char *line, struct rdt_resource *r)
> return -EINVAL;
> list_for_each_entry(d, &r->domains, list) {
> if (d->id == dom_id) {
> - if (r->parse_ctrlval(dom, r, d))
> + if (r->parse_ctrlval(strim(dom), r, d))
> return -EINVAL;
> goto next;
> }
> @@ -220,7 +220,7 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
> goto out;
> }
> for_each_enabled_rdt_resource(r) {
> - if (!strcmp(resname, r->name) &&
> + if (!strcmp(strim(resname), r->name) &&

Both strims() invocations are just silly. They can be done before the loop
once instead of doing them over and over again.

Thanks,

tglx

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