Messages in this thread Patch in this message | | | From | Christophe JAILLET <> | Subject | [PATCH] phy: sun4i-usb: Fix a W=1 compilation failure | Date | Sun, 3 Sep 2023 12:11:06 +0200 |
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With gcc 12.3.0, when this file is built, we get errors such as:
drivers/phy/allwinner/phy-sun4i-usb.c: In function ‘sun4i_usb_phy_probe’: drivers/phy/allwinner/phy-sun4i-usb.c:790:52: error: ‘_vbus’ directive output may be truncated writing 5 bytes into a region of size between 2 and 12 [-Werror=format-truncation=] 790 | snprintf(name, sizeof(name), "usb%d_vbus", i); | ^~~~~ drivers/phy/allwinner/phy-sun4i-usb.c:790:17: note: ‘snprintf’ output between 10 and 20 bytes into a destination of size 16 790 | snprintf(name, sizeof(name), "usb%d_vbus", i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Because of the possible value of 'i', this can't be an issue in real world application, but in order to have "make W=1" work correctly, give more space for 'name'.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- drivers/phy/allwinner/phy-sun4i-usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c index ec551464dd4f..e53a9a9317bc 100644 --- a/drivers/phy/allwinner/phy-sun4i-usb.c +++ b/drivers/phy/allwinner/phy-sun4i-usb.c @@ -782,7 +782,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev) for (i = 0; i < data->cfg->num_phys; i++) { struct sun4i_usb_phy *phy = data->phys + i; - char name[16]; + char name[32]; if (data->cfg->missing_phys & BIT(i)) continue; -- 2.34.1
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