perf arm-spe: Use old behavior when opening old SPE files

Since the linked commit, we stopped interpreting data source if the
perf.data file doesn't have the new metadata version. This means that
perf c2c will show no samples in this case.

Keep the old behavior so old files can be opened, but also still show
the new warning that updating might improve the decoding.

Also re-write the warning to be more concise and specific to a user.

Fixes: ba5e7169e548 ("perf arm-spe: Use metadata to decide the data source feature")
Signed-off-by: James Clark <[email protected]>
Reviewed-by: Leo Yan <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: Will Deacon <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: [email protected]
Cc: Besar Wicaksono <[email protected]>
Cc: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>

0 files changed, 0 insertions, 0 deletions