nfc: pn544: make array rset_cmd static const

Don't populate the read-only array rset_cmd on the stack but
instead it static const. Also makes the object code a little smaller.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220109202418.50641-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c
index 37d26f0..62a0f1a 100644 (file)
--- a/drivers/nfc/pn544/i2c.c
+++ b/drivers/nfc/pn544/i2c.c
@@ -188,7 +188,7 @@ do {                                                                \
 static void pn544_hci_i2c_platform_init(struct pn544_i2c_phy *phy)
 {
        int polarity, retry, ret;
-       char rset_cmd[] = { 0x05, 0xF9, 0x04, 0x00, 0xC3, 0xE5 };
+       static const char rset_cmd[] = { 0x05, 0xF9, 0x04, 0x00, 0xC3, 0xE5 };
        int count = sizeof(rset_cmd);
 
        nfc_info(&phy->i2c_dev->dev, "Detecting nfc_en polarity\n");