On 07/14/2012 05:40 PM, walter harms wrote: > > > Am 14.07.2012 18:23, schrieb Peter Meerwald: >> fix compile warning reported by Fengguang Wu: >> >> drivers/iio/light/adjd_s311.c: In function 'adjd_s311_trigger_handler': >> drivers/iio/light/adjd_s311.c:188:12: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] >> drivers/iio/light/adjd_s311.c:188:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] >> >> 185 } >> 186 >> 187 if (indio_dev->scan_timestamp) >> > 188 *(s64 *)((phys_addr_t)data->buffer + ALIGN(len, sizeof(s64))) >> 189 = time_ns; >> 190 iio_push_to_buffer(buffer, (u8 *)data->buffer, time_ns); >> 191 >> >> Signed-off-by: Peter Meerwald <pmeerw@xxxxxxxxxx> >> Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx> merged this one and the other two. Thanks Peter and Fengguang. >> --- >> drivers/iio/light/adjd_s311.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c >> index e485142..1cbb449 100644 >> --- a/drivers/iio/light/adjd_s311.c >> +++ b/drivers/iio/light/adjd_s311.c >> @@ -185,7 +185,7 @@ static irqreturn_t adjd_s311_trigger_handler(int irq, void *p) >> } >> >> if (indio_dev->scan_timestamp) >> - *(s64 *)((phys_addr_t)data->buffer + ALIGN(len, sizeof(s64))) >> + *(s64 *)((u8 *)data->buffer + ALIGN(len, sizeof(s64))) >> = time_ns; >> iio_push_to_buffer(buffer, (u8 *)data->buffer, time_ns); >> > > a few lines below is an othern cast (u8 *)data->buffer, i do not see the rest of the code, > but perhaps adding a helper will help here to improve readability ? > > just my 2 cents, > re, > wh Not really in this case. This stuff is all here because we are filling up a data record with different sized elements. As most of them in this driver are 16 bit, the data->buffer is 16 bit hence the need for these type casts. Not sure where the phys_addr_t misuse here first came from, but it's thankfully only in a couple of drivers. Jonathan -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
