Messages in this thread | | | From | Andy Lutomirski <> | Date | Tue, 15 Dec 2020 08:15:09 -0800 | Subject | Re: [PATCH] arch: x86: entry: vdso: fix type conversion on printf() call |
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On Tue, Dec 15, 2020 at 8:03 AM Enrico Weigelt, metux IT consult <info@metux.net> wrote: > > Fixing the following compiler warning by explicit conversion to long: > > In file included from /home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.c:162:0: > /home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.h: In function 'extract64': > /home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.h:38:52: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=] > fprintf(outfile, "static const unsigned char %s[%lu] = {", name, len); > ^ > CC mm/filemap.o > In file included from /home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.c:166:0: > /home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.h: In function 'extract32': > /home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.h:38:52: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=] > fprintf(outfile, "static const unsigned char %s[%lu] = {", name, len); > > Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> > --- > arch/x86/entry/vdso/vdso2c.h | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/entry/vdso/vdso2c.h b/arch/x86/entry/vdso/vdso2c.h > index 1c7cfac7e64a..5c6a4bbc63f9 100644 > --- a/arch/x86/entry/vdso/vdso2c.h > +++ b/arch/x86/entry/vdso/vdso2c.h > @@ -35,7 +35,8 @@ static void BITSFUNC(extract)(const unsigned char *data, size_t data_len, > if (offset + len > data_len) > fail("section to extract overruns input data"); > > - fprintf(outfile, "static const unsigned char %s[%lu] = {", name, len); > + fprintf(outfile, "static const unsigned char %s[%lu] = {", name, > + (unsigned long)len);
This would be nicer if you put the line break after the equal sign and before the {.
--Andy
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