linux-kernel - [PATCH v4 13/19] selftests/resctrl: Remove unnecessary startptr global from fill

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Date:   Thu, 13 Jul 2023 16:19:26 +0300
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     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>, linux-kernel@...r.kernel.org
Cc:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH v4 13/19] selftests/resctrl: Remove unnecessary startptr global from fill_buf

fill_buf stores buffer pointer into global variable startptr that is
only used in fill_cache().

Remove startptr as global variable, the local variable in fill_cache()
is enough to keep the pointer.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 tools/testing/selftests/resctrl/fill_buf.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tools/testing/selftests/resctrl/fill_buf.c b/tools/testing/selftests/resctrl/fill_buf.c
index d8f5505eb9e6..a5ec9c82a960 100644
--- a/tools/testing/selftests/resctrl/fill_buf.c
+++ b/tools/testing/selftests/resctrl/fill_buf.c
@@ -22,8 +22,6 @@
 #define PAGE_SIZE		(4 * 1024)
 #define MB			(1024 * 1024)
 
-static unsigned char *startptr;
-
 static void sb(void)
 {
 #if defined(__i386) || defined(__x86_64)
@@ -147,7 +145,6 @@ static int fill_cache(size_t buf_size, int memflush, int op, char *resctrl_val)
 	if (!start_ptr)
 		return -1;
 
-	startptr = start_ptr;
 	end_ptr = start_ptr + buf_size;
 
 	/* Flush the memory before using to avoid "cache hot pages" effect */
@@ -159,7 +156,7 @@ static int fill_cache(size_t buf_size, int memflush, int op, char *resctrl_val)
 	else
 		ret = fill_cache_write(start_ptr, end_ptr, resctrl_val);
 
-	free(startptr);
+	free(start_ptr);
 
 	if (ret) {
 		printf("\n Error in fill cache read/write...\n");
-- 
2.30.2