Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751555AbaKFV2a (ORCPT ); Thu, 6 Nov 2014 16:28:30 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54245 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751196AbaKFV21 (ORCPT ); Thu, 6 Nov 2014 16:28:27 -0500 From: Aristeu Rozanski To: linux-kernel@vger.kernel.org Cc: Aristeu Rozanski , "David S. Miller" , Fabian Frederick , Geert Uytterhoeven , Linus Torvalds , Pablo Neira Ayuso , Thomas Graf , Ying Xue , Josh Triplett Subject: [PATCH] lib/rhashtable: make build optional Date: Thu, 6 Nov 2014 16:27:43 -0500 Message-Id: <1415309263-13063-1-git-send-email-aris@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Aristeu Rozanski rhashtable currently is built unconditionally: text data bss dec hex filename 9158 2008 5264 16430 402e lib/rhashtable.o 9158 2008 5264 16430 402e (TOTALS) and it's used by netlink (which currently can't be optionally built if CONFIG_NET is enabled) and netfilter_hash. This patch is useful for situations in which memory footprint is a concern and networking is not enabled. Cc: David S. Miller Cc: Fabian Frederick Cc: Geert Uytterhoeven Cc: Linus Torvalds Cc: Pablo Neira Ayuso Cc: Thomas Graf Cc: Ying Xue Cc: Josh Triplett Signed-off-by: Aristeu Rozanski --- lib/Kconfig | 6 ++++++ lib/Makefile | 4 +++- net/Kconfig | 1 + 3 files changed, 10 insertions(+), 1 deletion(-) diff --git a/lib/Kconfig b/lib/Kconfig index 108196c..d6b8879 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -369,6 +369,12 @@ config ASSOCIATIVE_ARRAY for more information. +config RHASH_TABLE + bool "Resizable hash table" + default y + help + Resizable, scalable and concurrent hash table implementation. + config HAS_IOMEM boolean depends on !NO_IOMEM diff --git a/lib/Makefile b/lib/Makefile index 53fd120..43d29ff 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -26,7 +26,7 @@ obj-y += bcd.o div64.o sort.o parser.o debug_locks.o random32.o \ bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o \ gcd.o lcm.o list_sort.o uuid.o iovec.o clz_ctz.o \ bsearch.o find_last_bit.o find_next_bit.o llist.o memweight.o kfifo.o \ - percpu-refcount.o percpu_ida.o hash.o rhashtable.o + percpu-refcount.o percpu_ida.o hash.o obj-y += string_helpers.o obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o obj-y += kstrtox.o @@ -155,6 +155,8 @@ obj-$(CONFIG_GENERIC_NET_UTILS) += net_utils.o obj-$(CONFIG_STMP_DEVICE) += stmp_device.o +obj-$(CONFIG_RHASH_TABLE) += rhashtable.o + libfdt_files = fdt.o fdt_ro.o fdt_wip.o fdt_rw.o fdt_sw.o fdt_strerror.o \ fdt_empty_tree.o $(foreach file, $(libfdt_files), \ diff --git a/net/Kconfig b/net/Kconfig index 99815b5..d376630 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -7,6 +7,7 @@ menuconfig NET select NLATTR select GENERIC_NET_UTILS select BPF + select RHASH_TABLE ---help--- Unless you really know what you are doing, you should say Y here. The reason is that some programs need kernel networking support even -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/