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SubjectRe: [PATCH 1/4] modpost: shorten warning messages in report_sec_mismatch()
On Wed, Aug 3, 2022 at 3:13 AM Nick Desaulniers <> wrote:
> On Mon, Aug 1, 2022 at 2:41 AM Masahiro Yamada <> wrote:
> >
> > Each section mismatch results in long warning messages. Too much.
> :(
> Yes; they are too verbose. That said, I have found the
> recommendations about annotations for function attributes handy in the
> past and would be sad to see them go. They remind me of "note"
> diagnostics from the compiler that add additional context to
> "warning"/"error" diagnostics on what the recommended next steps are
> for fixing them.
> Is there a "happy middle ground" here?

I do not know.
modpost became painfully ugly.

Moreover, the current hint is not necessarily precise.
("lacks a __initdata" in the following)

[sample code]
int dummy __initdata;
void set_dummy(void) { dummy = 1; }

WARNING: modpost: vmlinux.o(.text+0x194412): Section mismatch in
reference from the function set_dummy() to the variable
The function set_dummy() references
the variable __initdata dummy.
This is often because set_dummy lacks a __initdata
annotation or the annotation of dummy is wrong.

Best Regards

Masahiro Yamada

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