From 029bb28772b4751cd07beb5f366066e9333ea502 Mon Sep 17 00:00:00 2001 From: Charlie Johnston Date: Mon, 12 Jun 2023 14:08:28 -0500 Subject: [PATCH 1/2] include/uapi pps.h: increase PPS_MAX_SOURCES value For consistency with what others use for minors, this change sets PPS_MAX_SOURCES to MINORMASK. The PPS_MAX_SOURCES value is currently set to 16. In some cases this was not sufficient for a system. For example, a system with multiple (4+) PCIe cards each with 4 PTP-capable ethernet interfaces could run out of the available PPS major:minors if each interface registers a PPS source. Signed-off-by: Charlie Johnston Acked-by: Rodolfo Giometti --- include/uapi/linux/pps.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/pps.h b/include/uapi/linux/pps.h index 009ebcd8ced5..90f2e86020ba 100644 --- a/include/uapi/linux/pps.h +++ b/include/uapi/linux/pps.h @@ -26,7 +26,7 @@ #include #define PPS_VERSION "5.3.6" -#define PPS_MAX_SOURCES 16 /* should be enough... */ +#define PPS_MAX_SOURCES MINORMASK /* Implementation note: the logical states ``assert'' and ``clear'' * are implemented in terms of the chip register, i.e. ``assert'' -- 2.34.1