linux-kernel - Re: [PATCH 14/24] selftests/resctrl: Move cat_val() to cat_test.c and rename to cat

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Date:   Fri, 27 Oct 2023 15:18:08 +0300 (EEST)
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     Maciej Wieczór-Retman 
        <maciej.wieczor-retman@...el.com>
cc:     linux-kselftest@...r.kernel.org,
        Reinette Chatre <reinette.chatre@...el.com>,
        Shuah Khan <shuah@...nel.org>,
        Shaopeng Tan <tan.shaopeng@...fujitsu.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 14/24] selftests/resctrl: Move cat_val() to cat_test.c
 and rename to cat_test()

On Fri, 27 Oct 2023, Maciej Wieczór-Retman wrote:

> On 2023-10-24 at 12:26:24 +0300, Ilpo Järvinen wrote:
> >diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c
> >index 2106cc3601d9..e71690a9bbb3 100644
> >--- a/tools/testing/selftests/resctrl/cat_test.c
> >+++ b/tools/testing/selftests/resctrl/cat_test.c
> >@@ -111,6 +111,77 @@ void cat_test_cleanup(void)
> > 	remove(RESULT_FILE_NAME2);
> > }
> > 
> >+/*
> >+ * cat_test:	execute CAT benchmark and measure LLC cache misses
> >+ * @param:	parameters passed to cat_test()
> >+ * @span:	buffer size for the benchmark
> >+ *
> >+ * Return:	0 on success. non-zero on failure.
> >+ */
> >+static int cat_test(struct resctrl_val_param *param, size_t span)
> >+{
> >+	int memflush = 1, operation = 0, ret = 0;
> >+	char *resctrl_val = param->resctrl_val;
> >+	static struct perf_event_read pe_read;
> 
> Is there a reason why this struct is declared as static?

Good catch.

I'll change the earlier patch which made the global -> local var move and 
failed to remove the static keyword.

-- 
 i.