Re: [PATCH] atm: idt77252: clean up trigraph warning on ??) string

From: Nathan Chancellor
Date: Tue Jul 20 2021 - 13:19:22 EST


On 7/20/2021 5:48 AM, Colin King wrote:
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

The character sequence ??) is a trigraph and causes the following
clang warning:

drivers/atm/idt77252.c:3544:35: warning: trigraph ignored [-Wtrigraphs]

Clean this by replacing it with single ?.

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>

This looks good to me but I am curious how you say this warning in the first place since the main Makefile disables this unconditionally. Did you just pass -Wtrigraphs via KCFLAGS or something similar?

Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx>

---
drivers/atm/idt77252.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index 9e4bd751db79..81ce81a75fc6 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -3536,7 +3536,7 @@ static int idt77252_preset(struct idt77252_dev *card)
return -1;
}
if (!(pci_command & PCI_COMMAND_IO)) {
- printk("%s: PCI_COMMAND: %04x (???)\n",
+ printk("%s: PCI_COMMAND: %04x (?)\n",
card->name, pci_command);
deinit_card(card);
return (-1);