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August 2022

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Re: [Sound-open-firmware] [PATCH] soc: sof: fix clang -Wformat warnings
by Nathan Chancellor 02 Aug '22

02 Aug '22

Hi all, On Thu, Jul 21, 2022 at 02:12:18PM -0700, Justin Stitt wrote: > When building with Clang we encounter these warnings: > | sound/soc/sof/ipc3-topology.c:2343:4: error: format specifies type > | 'unsigned char' but the argument has type 'int' [-Werror,-Wformat] > | SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH); > | ^~~~~~~~~~~~~~~^~~~~~~~~~~~~~~^~~~~~~~~~~~~ > > Use correct format specifier `%d` since args are of type int. > > Link: https://github.com/ClangBuiltLinux/linux/issues/378 > Reported-by: Nathan Chancellor <nathan(a)kernel.org> > Suggested-by: Nathan Chancellor <nathan(a)kernel.org> > Signed-off-by: Justin Stitt <justinstitt(a)google.com> > --- > Reported by Nathan here: > https://lore.kernel.org/all/YtmrCJjQrSbv8Aj1@dev-arch.thelio-3990X/ > > sound/soc/sof/ipc3-topology.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/sound/soc/sof/ipc3-topology.c b/sound/soc/sof/ipc3-topology.c > index b2cc046b9f60..65923e7a5976 100644 > --- a/sound/soc/sof/ipc3-topology.c > +++ b/sound/soc/sof/ipc3-topology.c > @@ -2338,7 +2338,7 @@ static int sof_ipc3_parse_manifest(struct snd_soc_component *scomp, int index, > } > > dev_info(scomp->dev, > - "Topology: ABI %d:%d:%d Kernel ABI %hhu:%hhu:%hhu\n", > + "Topology: ABI %d:%d:%d Kernel ABI %d:%d:%d\n", > man->priv.data[0], man->priv.data[1], man->priv.data[2], > SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH); > > -- > 2.37.1.359.gd136c6c3e2-goog > > Is it too late for this patch to make 6.0? We are trying to enable -Wformat for clang in 6.0 and this instance of that warning was introduced this development cycle by commit 323aa1f093e6 ("ASoC: SOF: Add a new IPC op for parsing topology manifest"). If I am tracking all my patches correctly, this is the only instance of -Wformat that does not have a patch applied to a maintainer's tree so it would be really unfortunate if we could not sure it on for -rc1. We could probably route this via the Kbuild tree with an Ack along with the patch that enables -Wformat if it cannot go via Mark's or Takashi's ree. Cheers, Nathan

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