Hi, On Wed, May 24, 2017 at 6:39 AM, Alan Cox <[email protected]> wrote: > On Tue, 23 May 2017 13:55:39 -0700 > Matthias Kaehlcke <[email protected]> wrote: > >> The function was added by commit 0a8b83530b6f ("intel_pmc_ipc: Add Intel >> Apollo Lake PMC IPC driver") in 2015 and hasn't been used since then. >> Removing it fixes the following warning when building with clang: >> >> drivers/platform/x86/intel_pmc_ipc.c:189:18: error: unused function >> 'ipc_data_readb' [-Werror,-Wunused-function] > > It is however also part of the API and a consistent sensible function to > have present should it be needed. As it's static it's eliminated > correctly by gcc. > > I'm all for eliminating unused functions but in this case I have to wonder
If it's a useful function to have present, it seems like adding "__maybe_unused" makes sense, as Matthias did in <https://patchwork.kernel.org/patch/9732009/>. Would that work for you? -Doug
