[Devel] [PATCH vz10] perf dso: Fix symtab_type for kmod compression

[Dmitry Sepp]

From: Veronika Molnarova <vmolnaro at redhat.com>

During the rework of the dso structure in patch ee756ef7491eafd an
increment was forgotten for the symtab_type in case the data for
the kernel module are compressed. This affects the probing of the
kernel modules, which fails if the data are not already cached.

Increment the value of the symtab_type to its compressed variant so the
data could be recovered successfully.

Fixes: ee756ef7491eafd7 ("perf dso: Add reference count checking and accessor functions")
Signed-off-by: Veronika Molnarova <vmolnaro at redhat.com>
Acked-by: Michael Petlan <mpetlan at redhat.com>
Acked-by: Namhyung Kim <namhyung at kernel.org>
Tested-by: Michael Petlan <mpetlan at redhat.com>
Link: https://lore.kernel.org/r/20241010144836.16424-1-vmolnaro@redhat.com
Signed-off-by: Namhyung Kim <namhyung at kernel.org>
(cherry picked from commit 05a62936e6b14c005db3b0c9c7d8b93d825dd9ca)
Signed-off-by: Dmitry Sepp <dmitry.sepp at virtuozzo.com>
---
 tools/perf/util/machine.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 1912d9727691..27d5345d2b30 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1345,7 +1345,7 @@ static int maps__set_module_path(struct maps *maps, const char *path, struct kmo
 	 * we need to update the symtab_type if needed.
 	 */
 	if (m->comp && is_kmod_dso(dso)) {
-		dso__set_symtab_type(dso, dso__symtab_type(dso));
+		dso__set_symtab_type(dso, dso__symtab_type(dso)+1);
 		dso__set_comp(dso, m->comp);
 	}
 	map__put(map);
-- 
2.47.1