[PATCH] clk: canaan: k230: Fix sparse warnings reported by LKP

[Xukai Wang]

Fix all sparse warnings detected during LKP randconfig testing:
- Replace plain integer 0 with NULL.
- Add static modifier to k230_plls and k230_pll_divs.

Reported-by: kernel test robot <lkp at intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202605220724.j4ZeM3KI-lkp@intel.com/
Signed-off-by: Xukai Wang <kingxukai at zohomail.com>
---
 drivers/clk/clk-k230.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/clk/clk-k230.c b/drivers/clk/clk-k230.c
index d883a1e1118e..cfc437038e4e 100644
--- a/drivers/clk/clk-k230.c
+++ b/drivers/clk/clk-k230.c
@@ -270,12 +270,12 @@ static const struct clk_ops k230_clk_ops_mul_div = {
 	.recalc_rate	= k230_clk_get_rate_mul_div,
 };
 
-K230_CLK_PLL_FORMAT(pll0, 0, CLK_IS_CRITICAL, 0);
-K230_CLK_PLL_FORMAT(pll1, 1, CLK_IS_CRITICAL, 0);
-K230_CLK_PLL_FORMAT(pll2, 2, CLK_IS_CRITICAL, 0);
-K230_CLK_PLL_FORMAT(pll3, 3, CLK_IS_CRITICAL, 0);
+K230_CLK_PLL_FORMAT(pll0, 0, CLK_IS_CRITICAL, NULL);
+K230_CLK_PLL_FORMAT(pll1, 1, CLK_IS_CRITICAL, NULL);
+K230_CLK_PLL_FORMAT(pll2, 2, CLK_IS_CRITICAL, NULL);
+K230_CLK_PLL_FORMAT(pll3, 3, CLK_IS_CRITICAL, NULL);
 
-struct k230_pll *k230_plls[] = {
+static struct k230_pll *k230_plls[] = {
 	&pll0,
 	&pll1,
 	&pll2,
@@ -296,7 +296,7 @@ K230_CLK_FIXED_FACTOR_FORMAT(pll3_div2, 1, 2, 0, &pll3.hw);
 K230_CLK_FIXED_FACTOR_FORMAT(pll3_div3, 1, 3, 0, &pll3.hw);
 K230_CLK_FIXED_FACTOR_FORMAT(pll3_div4, 1, 4, 0, &pll3.hw);
 
-struct clk_fixed_factor *k230_pll_divs[] = {
+static struct clk_fixed_factor *k230_pll_divs[] = {
 	&pll0_div2,
 	&pll0_div3,
 	&pll0_div4,
-- 
2.34.1