On Fri, Feb 18, 2022 at 10:22:28AM +0530, Ahamed Husni wrote: > Hi Greg, > > On Fri, Feb 18, 2022 at 12:56 AM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > Did you try to build this change? > > I am a newbie kernel dev and trying to understand how things work. > I did not build this change by the time I sent you this, thinking this > is just a style change. > I should have tested the build. I am sorry. You always have to build-test your changes, as you have found out. > Now I built the changes by setting the following configurations. > CONFIG_GREYBUS > CONFIG_STAGING > CONFIG_GREYBUS_LOOPBACK > > My change introduces the following error. > '''' > drivers/staging/greybus/loopback.c:166:2: error: expected identifier > or ‘(’ before ‘do’ > 166 | do { \ > | ^~ > '''' > I could not fix or find the reason for this error. Please guide me in > this regard. There is nothing wrong with the original code here. Remember that checkpatch is a perl script that gives good advice, but it is not always correct. You must always manually check it based on your knowledge of the C language. I recommend learning a bit more C before working on kernel code. Best of luck! greg k-h