diff options
| author | Thomas Richter <tmricht@linux.ibm.com> | 2025-11-06 14:23:33 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2025-11-14 11:34:27 +0100 |
| commit | d17901e8e8ddef130222c5e087854811d9fdaff4 (patch) | |
| tree | 51d95451ed084dee1cb43f07d56c62bcc8e442a6 | |
| parent | b60d126c8ea3444d8c1f29538542d5c03d219e3e (diff) | |
s390/pai: Calculate size of reserved PAI extension control block area
The PAI extension 1 control block area is 512 bytes in total.
It currently contains three address pointer which refer to counter
memory blocks followed by a reserved area.
Calculate the reserved area instead of hardcoding its size. This
makes the code more readable and maintainable.
No functional chance.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Suggested-by: Jan Polensky <japo@linux.ibm.com>
Reviewed-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
| -rw-r--r-- | arch/s390/kernel/perf_pai.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/perf_pai.c b/arch/s390/kernel/perf_pai.c index 1fac41a0aa09..c79864628582 100644 --- a/arch/s390/kernel/perf_pai.c +++ b/arch/s390/kernel/perf_pai.c @@ -48,7 +48,7 @@ struct paiext_cb { /* PAI extension 1 control block */ u64 header; /* Not used */ u64 reserved1; u64 acc; /* Addr to analytics counter control block */ - u8 reserved2[488]; + u8 reserved2[PAIE1_CTRBLOCK_SZ - 3 * sizeof(u64)]; } __packed; struct pai_map { |