From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Capella Subject: [PATCH v7 0/3] hibernation related patches Date: Tue, 4 Feb 2014 12:43:48 -0800 Message-ID: <1391546631-7715-1-git-send-email-sebastian.capella@linaro.org> Return-path: Received: from mail-pd0-f171.google.com ([209.85.192.171]:43321 "EHLO mail-pd0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932508AbaBDUnv (ORCPT ); Tue, 4 Feb 2014 15:43:51 -0500 Received: by mail-pd0-f171.google.com with SMTP id g10so8697081pdj.30 for ; Tue, 04 Feb 2014 12:43:51 -0800 (PST) Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-pm@vger.kernel.org, linaro-kernel@lists.linaro.org, patches@linaro.org Patchset related to hibernation resume: - enhancement to make the use of an existing resume file more general - add kstrdup_trimnl function which duplicates and trims a single trailing newline off of a string - cleanup checkpatch warnings in hibernate.c file All patches are based on the 3.13 tag. This was tested on a Beaglebone black with partial hibernation support, and compiled for x86_64. [PATCH v7 1/3] mm: add kstrdup_trimnl function include/linux/string.h | 1 + mm/util.c | 29 +++++++++++++++++++++++++++++ 2 files changed, 30 insertions(+) Adds the kstrdup_trimnl function to duplicate and trim at most one trailing newline from a string. This is useful for working with user input to sysfs. [PATCH v7 2/3] trivial: PM / Hibernate: clean up checkpatch in kernel/power/hibernate.c | 62 ++++++++++++++++++++++++---------------------- 1 file changed, 32 insertions(+), 30 deletions(-) Cleanup checkpatch warnings in kernel/power/hibernate.c [PATCH v7 3/3] PM / Hibernate: use name_to_dev_t to parse resume kernel/power/hibernate.c | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) Use name_to_dev_t to parse the /sys/power/resume file making the syntax more flexible. It supports the previous use syntax and additionally can support other formats such as /dev/devicenode and UUID= formats. By changing /sys/debug/resume to accept the same syntax as the resume=device parameter, we can parse the resume=device in the initrd init script and use the resume device directly from the kernel command line. Changes in v7: -------------- * Switch to trim only one trailing newline if present using kstrdup_trimnl * remove kstrimdup patch * add kstrdup_trimnl patch * Add clean up patch for kernel/power/hibernate.c checkpatch warnings Changes in v6: -------------- * Revert tricky / confusing while loop indexing Changes in v5: -------------- * Change kstrimdup to minimize allocated memory. Now allocates only the memory needed for the string instead of using strim. Changes in v4: -------------- * Dropped name_to_dev_t rework in favor of adding kstrimdup * adjusted resume_store Changes in v3: -------------- * Dropped documentation patch as it went in through trivial * Added patch for name_to_dev_t to support directly parsing userspace buffer Changes in v2: -------------- * Added check for null return of kstrndup in hibernate.c Thanks, Sebastian