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SubjectRe: [PATCH][next] i2c: busses: Use fallthrough pseudo-keyword
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Hi,

On 7/20/20 09:59, Jean Delvare wrote:
> Hi Gustavo,
>
> On Thu, 16 Jul 2020 17:03:07 -0500, Gustavo A. R. Silva wrote:
>> Replace the existing /* fall through */ comments and its variants with
>> the new pseudo-keyword macro fallthrough[1].
>>
>> [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
>>
>> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
>> ---
>> drivers/i2c/busses/i2c-amd8111.c | 2 +-
>> drivers/i2c/busses/i2c-i801.c | 8 ++++----
>> drivers/i2c/busses/i2c-viapro.c | 2 +-
>> 3 files changed, 6 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c
>> index 2b14fef5bf26..34862ad3423e 100644
>> --- a/drivers/i2c/busses/i2c-amd8111.c
>> +++ b/drivers/i2c/busses/i2c-amd8111.c
>> @@ -381,7 +381,7 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr,
>> if (status)
>> return status;
>> len = min_t(u8, len, I2C_SMBUS_BLOCK_MAX);
>> - /* fall through */
>> + fallthrough;
>> case I2C_SMBUS_I2C_BLOCK_DATA:
>> for (i = 0; i < len; i++) {
>> status = amd_ec_read(smbus, AMD_SMB_DATA + i,
>> diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
>> index 1fc7ae77753d..638e7f7c66cc 100644
>> --- a/drivers/i2c/busses/i2c-i801.c
>> +++ b/drivers/i2c/busses/i2c-i801.c
>> @@ -1765,19 +1765,19 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
>> case PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1:
>> case PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2:
>> priv->features |= FEATURE_IDF;
>> - /* fall through */
>> + fallthrough;
>> default:
>> priv->features |= FEATURE_BLOCK_PROC;
>> priv->features |= FEATURE_I2C_BLOCK_READ;
>> priv->features |= FEATURE_IRQ;
>> - /* fall through */
>> + fallthrough;
>> case PCI_DEVICE_ID_INTEL_82801DB_3:
>> priv->features |= FEATURE_SMBUS_PEC;
>> priv->features |= FEATURE_BLOCK_BUFFER;
>> - /* fall through */
>> + fallthrough;
>> case PCI_DEVICE_ID_INTEL_82801CA_3:
>> priv->features |= FEATURE_HOST_NOTIFY;
>> - /* fall through */
>> + fallthrough;
>> case PCI_DEVICE_ID_INTEL_82801BA_2:
>> case PCI_DEVICE_ID_INTEL_82801AB_3:
>> case PCI_DEVICE_ID_INTEL_82801AA_3:
>> diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
>> index 05aa92a3fbe0..970ccdcbb889 100644
>> --- a/drivers/i2c/busses/i2c-viapro.c
>> +++ b/drivers/i2c/busses/i2c-viapro.c
>> @@ -228,7 +228,7 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
>> goto exit_unsupported;
>> if (read_write == I2C_SMBUS_READ)
>> outb_p(data->block[0], SMBHSTDAT0);
>> - /* Fall through */
>> + fallthrough;
>> case I2C_SMBUS_BLOCK_DATA:
>> outb_p(command, SMBHSTCMD);
>> if (read_write == I2C_SMBUS_WRITE) {
>
> Looks good to me, thanks for doing that.
>
> Reviewed-by: Jean Delvare <jdelvare@suse.de>
>

Thanks for this.

> However I see many occurrences in other drivers within
> drivers/i2c/busses, which are not covered by this patch:
>
> drivers/i2c/busses/i2c-designware-pcidrv.c
> drivers/i2c/busses/i2c-mv64xxx.c
> drivers/i2c/busses/i2c-omap.c
> drivers/i2c/busses/i2c-synquacer.c
> drivers/i2c/busses/i2c-ibm_iic.c
> drivers/i2c/busses/i2c-aspeed.c
> drivers/i2c/busses/scx200_acb.c
> drivers/i2c/busses/i2c-digicolor.c
> drivers/i2c/busses/i2c-opal.c
>
> Are they covered by another patch of yours?
>

Yep; I have a queue of pending patches I'm about to send. :)

Thanks
--
Gustavo

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