On Wed, Mar 03, 2021 at 07:43:57AM +0100, Jiri Slaby wrote: > Commit 8382c668ce4f ("x86/vdso: Add support for exception fixup in vDSO > functions") added a printf of len which is size_t. Compilers now > complain on 32b: > In file included from arch/x86/entry/vdso/vdso2c.c:162: > arch/x86/entry/vdso/vdso2c.h: In function 'extract64': > 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'} > > So use proper modifier (%zu) for size_t. > > Signed-off-by: Jiri Slaby <jsl...@suse.cz> > Fixes: 8382c668ce4f ("x86/vdso: Add support for exception fixup in vDSO > functions") > Cc: Andy Lutomirski <l...@amacapital.net> > Cc: Sean Christopherson <sean.j.christopher...@intel.com> > Cc: Jarkko Sakkinen <jar...@kernel.org> > Cc: Borislav Petkov <b...@suse.de> > Cc: Jethro Beekman <jet...@fortanix.com> > Cc: Thomas Gleixner <t...@linutronix.de> > Cc: Ingo Molnar <mi...@redhat.com> > Cc: "H. Peter Anvin" <h...@zytor.com> > Cc: x...@kernel.org
Acked-by: Jarkko Sakkinen <jar...@kernel.org> > --- > arch/x86/entry/vdso/vdso2c.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/entry/vdso/vdso2c.h b/arch/x86/entry/vdso/vdso2c.h > index 1c7cfac7e64a..5264daa8859f 100644 > --- a/arch/x86/entry/vdso/vdso2c.h > +++ b/arch/x86/entry/vdso/vdso2c.h > @@ -35,7 +35,7 @@ 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[%zu] = {", name, len); > BITSFUNC(copy)(outfile, data + offset, len); > fprintf(outfile, "\n};\n\n"); > } > -- > 2.30.1 > > /Jarkko