From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S938549AbcISEHL (ORCPT ); Mon, 19 Sep 2016 00:07:11 -0400 Received: from alt22.smtp-out.videotron.ca ([70.80.0.73]:52183 "EHLO alt22.smtp-out.videotron.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750771AbcISEGr (ORCPT ); Mon, 19 Sep 2016 00:06:47 -0400 X-Authority-Analysis: v=2.1 cv=QfzGxpvv c=1 sm=1 tr=0 a=keA3yYpnlypCNW5BNWqu+w==:117 a=keA3yYpnlypCNW5BNWqu+w==:17 a=L9H7d07YOLsA:10 a=9cW_t1CCXrUA:10 a=s5jvgZ67dGcA:10 a=GW1xBdLrtEIA:10 a=D19gQVrFAAAA:8 a=5OAbOl6qMSy_aZx5KxEA:9 a=W4TVW4IDbPiebHqcZpNg:22 From: Nicolas Pitre To: John Stultz Cc: Thomas Gleixner , Richard Cochran , Josh Triplett , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] make POSIX timers configurable Date: Sun, 18 Sep 2016 23:51:08 -0400 Message-Id: <1474257070-4255-1-git-send-email-nicolas.pitre@linaro.org> X-Mailer: git-send-email 2.7.4 X-CMAE-Envelope: MS4wfAknrQXQbmLuGKBPyU/llyrnckWoExCvRxJg7bzrjsYW6mCaZiJzwI68YUoO5l3CTyfQvBDWSF9RgJ7PtfKOIg3sXbobw2WEuJJpIUen6KvllJqn8Shw VCVttsu8WRmWzT8pr8AgAz2gXnQRwKtMPDSImo5s8hF0Z4+0QYwttIxhUjIdNvgsDaeCrt159ajALOeJttLrJzBIHCxV9GnAAOGRr7UCyydxMhEvNofhO22T py6wY5GsOr37NF4xx+aNFLAschwJE5iiqhDMfxMAMmLucYMN/qqoxIk7DfVh9aWmpr/ebIqMiakJDDkvMzRDlSLeBITCuiEuFjI8wHI8Di1m129p9yfq8OKL 0cTDyDHX Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Many embedded systems don't need the full POSIX timer support. Configuring them out provides a nice kernel image size reduction. When POSIX timers are configured out, the PTP clock subsystem should be left out as well. However a bunch of ethernet drivers currently *select* it in their Kconfig entries. Therefore some more tweaks were needed to break that hard dependency for those drivers to still be configured in if desired. It was agreed that the best path upstream for those patches is via John Stultz's timer tree. Previous itterations of those patches and the discussion threads can be found here: https://lkml.org/lkml/2016/9/14/992 https://lkml.org/lkml/2016/9/14/803 https://lkml.org/lkml/2016/9/8/793 diffstat: drivers/Makefile | 2 +- drivers/net/ethernet/adi/Kconfig | 8 +- drivers/net/ethernet/amd/Kconfig | 2 +- drivers/net/ethernet/amd/xgbe/xgbe-main.c | 6 +- drivers/net/ethernet/broadcom/Kconfig | 4 +- drivers/net/ethernet/cavium/Kconfig | 2 +- drivers/net/ethernet/freescale/Kconfig | 2 +- drivers/net/ethernet/intel/Kconfig | 10 +- drivers/net/ethernet/intel/e1000e/ptp.c | 2 +- drivers/net/ethernet/intel/i40e/i40e_ptp.c | 2 +- drivers/net/ethernet/intel/igb/igb_ptp.c | 2 +- drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c | 2 +- drivers/net/ethernet/mellanox/mlx4/Kconfig | 2 +- drivers/net/ethernet/mellanox/mlx4/en_clock.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/Kconfig | 2 +- .../net/ethernet/mellanox/mlx5/core/en_clock.c | 2 +- drivers/net/ethernet/renesas/Kconfig | 2 +- drivers/net/ethernet/samsung/Kconfig | 2 +- drivers/net/ethernet/sfc/Kconfig | 2 +- drivers/net/ethernet/sfc/ptp.c | 14 +-- drivers/net/ethernet/stmicro/stmmac/Kconfig | 2 +- .../net/ethernet/stmicro/stmmac/stmmac_ptp.c | 2 +- drivers/net/ethernet/ti/Kconfig | 2 +- drivers/net/ethernet/tile/Kconfig | 2 +- drivers/ptp/Kconfig | 14 ++- include/linux/posix-timers.h | 28 ++++- include/linux/ptp_clock_kernel.h | 59 ++++++--- include/linux/sched.h | 10 ++ init/Kconfig | 17 +++ kernel/signal.c | 4 + kernel/time/Kconfig | 1 + kernel/time/Makefile | 10 +- kernel/time/posix-stubs.c | 118 ++++++++++++++++++ 33 files changed, 277 insertions(+), 64 deletions(-)