From: Steffen Eiden Date: Thu, 24 Oct 2024 06:26:33 +0000 (+0200) Subject: s390/uv: Use a constant for more-data rc X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=da59c71cc727cb86af0599058bcb599d3fb5c50a;p=users%2Fjedix%2Flinux-maple.git 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 Reviewed-by: Janosch Frank Reviewed-by: Christoph Schlameuss Signed-off-by: Steffen Eiden Link: https://lore.kernel.org/r/20241024062638.1465970-2-seiden@linux.ibm.com Signed-off-by: Janosch Frank Signed-off-by: Heiko Carstens --- diff --git a/arch/s390/boot/uv.c b/arch/s390/boot/uv.c index 318e6ba95bfd2..2a71e759dc42c 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 cce2568cfaddb..49ca548273791 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