diff options
| author | Steffen Eiden <seiden@linux.ibm.com> | 2024-10-24 08:26:33 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2024-10-29 11:17:16 +0100 |
| commit | da59c71cc727cb86af0599058bcb599d3fb5c50a (patch) | |
| tree | 47673d6ae690fb19b912750ad737e8e8e0b9abc1 /arch/s390 | |
| parent | 28a51ee8eb8326502d7f8a9c408d14a4cba5a5cf (diff) | |
s390/uv: Use a constant for more-data rc
Add a define for the UVC rc 0x0100 that indicates that a UV-call was
successful but may serve more data if called with a larger buffer
again.
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
Link: https://lore.kernel.org/r/20241024062638.1465970-2-seiden@linux.ibm.com
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/boot/uv.c | 4 | ||||
| -rw-r--r-- | arch/s390/include/asm/uv.h | 1 |
2 files changed, 3 insertions, 2 deletions
diff --git a/arch/s390/boot/uv.c b/arch/s390/boot/uv.c index 318e6ba95bfd..2a71e759dc42 100644 --- a/arch/s390/boot/uv.c +++ b/arch/s390/boot/uv.c @@ -22,8 +22,8 @@ void uv_query_info(void) if (!test_facility(158)) return; - /* rc==0x100 means that there is additional data we do not process */ - if (uv_call(0, (uint64_t)&uvcb) && uvcb.header.rc != 0x100) + /* Ignore that there might be more data we do not process */ + if (uv_call(0, (uint64_t)&uvcb) && uvcb.header.rc != UVC_RC_MORE_DATA) return; if (IS_ENABLED(CONFIG_KVM)) { diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h index cce2568cfadd..49ca54827379 100644 --- a/arch/s390/include/asm/uv.h +++ b/arch/s390/include/asm/uv.h @@ -28,6 +28,7 @@ #define UVC_RC_INV_STATE 0x0003 #define UVC_RC_INV_LEN 0x0005 #define UVC_RC_NO_RESUME 0x0007 +#define UVC_RC_MORE_DATA 0x0100 #define UVC_RC_NEED_DESTROY 0x8000 #define UVC_CMD_QUI 0x0001 |