Re: [PATCH] [media] radio-si470x: remove h from printk format specifier
From: Tom Rix
Date: Tue Dec 15 2020 - 19:16:15 EST
On 12/15/20 2:07 PM, Joe Perches wrote:
> On Tue, 2020-12-15 at 13:33 -0800, trix@xxxxxxxxxx wrote:
>> From: Tom Rix <trix@xxxxxxxxxx>
>>
>> See Documentation/core-api/printk-formats.rst.
>>
>> commit cbacb5ab0aa0 ("docs: printk-formats: Stop encouraging use of unnecessary %h[xudi] and %hh[xudi]")
>>
>> Standard integer promotion is already done and %hx and %hhx is useless
>> so do not encourage the use of %hh[xudi] or %h[xudi].
> []
>> diff --git a/drivers/media/radio/si470x/radio-si470x-i2c.c b/drivers/media/radio/si470x/radio-si470x-i2c.c
> []
>> @@ -410,7 +410,7 @@ static int si470x_i2c_probe(struct i2c_client *client)
>> radio->registers[DEVICEID], radio->registers[SI_CHIPID]);
>> if ((radio->registers[SI_CHIPID] & SI_CHIPID_FIRMWARE) < RADIO_FW_VERSION) {
>> dev_warn(&client->dev,
>> - "This driver is known to work with firmware version %hu,\n",
>> + "This driver is known to work with firmware version %u,\n",
>> RADIO_FW_VERSION);
>> dev_warn(&client->dev,
>> "but the device has firmware version %hu.\n",
> Tom? Do you know why your script missed this %hu?
Boooo..
I am making an assumption that there is only string.
Let me fix that and resend.
Thanks for catching the problem,
Tom
>
> btw: this would probably better as a single line something like:
>
> dev_warn(&client->dev,
> "Firmware version: %u is older than known working version %u\n",
> radio->registers[SI_CHIPID] & SI_CHIPID_FIRMWARE
> RADIO_FW_VERSION);
>
> Also a few lines above is:
>
> dev_info(&client->dev, "DeviceID=0x%4.4hx ChipID=0x%4.4hx\n",
> radio->registers[DEVICEID], radio->registers[SI_CHIPID])
>
> and these %4.4hx uses are also not changed by this patch.
>
>