Re: [PATCH stable 6.1 0/3] perf build fixes

[Florian Fainelli]

On 5/19/26 11:55, Ian Rogers wrote:
> On Tue, May 19, 2026 at 11:51 AM Florian Fainelli
> <florian.fainelli@xxxxxxxxxxxx> wrote:
> > This patch series contains "perf" build fixes specific to 6.1. We have
> > seen occasional build failures in our CI looking like these:
> >
> > util/parse-events-bison.c: In function 'yy_symbol_print':
> > util/parse-events-bison.c:901: error: unterminated #if
> >    901 | #if YYDEBUG
> >        |
> > util/parse-events-bison.c:1020:62: error: '_p' undeclared (first use in this function)
> >   1020 |   yy_symbol_value_print (yyo, yykind, yyvaluep, yylocationp, _parse_state, scanner);
> >        |                                                              ^~
> > util/parse-events-bison.c:1020:62: note: each undeclared identifier is reported only once for each function it appears in
> > util/parse-events-bison.c:1020:64: error: expected ')' at end of input
> >   1020 |   yy_symbol_value_print (yyo, yykind, yyvaluep, yylocationp, _parse_state, scanner);
> >        |                         ~                                      ^
> >        |                                                                )
> >   1021 |   YYFPRINTF (yyo, ")");
> >        |
> > util/parse-events-bison.c:1020:3: error: too few arguments to function 'yy_symbol_value_print'
> >   1020 |   yy_symbol_value_print (yyo, yykind, yyvaluep, yylocationp, _parse_state, scanner);
> >        |   ^~~~~~~~~~~~~~~~~~~~~
> > util/parse-events-bison.c:991:1: note: declared here
> >    991 | yy_symbol_value_print (FILE *yyo,
> >        | ^~~~~~~~~~~~~~~~~~~~~
> >
> > which are resolved by these patches.
>
> Lgtm, but the changes should be unnecessary as perf from Linux 7.1
> should run on Linux 6.1 and with more and better features.

That's a bit harder to ship logistically for us and likely for others as 
well where we expect a single source to build the kernel and its 
companion tools.
--
Florian