kernel/linux.git/tools/power/cpupower/bench/parse.c, branch linux-7.0.y

pm: cpupower: bench: Prevent NULL dereference on malloc failure

2025-02-19T20:48:08+00:00

If malloc returns NULL due to low memory, 'config' pointer can be NULL. Add a check to prevent NULL dereference. Link: https://lore.kernel.org/r/20250219122715.3892223-1-quic_zhonhan@quicinc.com Signed-off-by: Zhongqiu Han Signed-off-by: Shuah Khan

pm: cpupower: bench: print config file path when open cpufreq-bench.conf fails

2024-09-30T15:40:30+00:00

Print out the config file path when fopen failed. It will be easy for users to know where to create the file. Since we are here, use strerror to drop the usage of perror. Signed-off-by: Peng Fan Signed-off-by: Shuah Khan

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30T18:26:35+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman

cpupower: remove stringop-truncation waring

2018-08-28T21:46:12+00:00

The strncpy doesn't null terminate the string because the size is too short by one byte. parse.c: In function ‘prepare_default_config’: parse.c:148:2: warning: ‘strncpy’ output truncated before terminating nul copying 8 bytes from a string of the same length [-Wstringop-truncation] strncpy(config->governor, "ondemand", 8); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The normal method of passing the length of the destination buffer works correctly here. Fixes: 7fe2f6399a84 ("cpupowerutils - cpufrequtils extended with quite some features") Signed-off-by: Anders Roxell Signed-off-by: Shuah Khan (Samsung OSG)

cpupower: fix spelling mistake: "logilename" -> "logfilename"

2018-05-10T16:24:30+00:00

Trivial fix to spelling mistake in dprintf message Signed-off-by: Colin Ian King Signed-off-by: Shuah Khan (Samsung OSG)

cpupower: fix potential memory leak

2016-05-04T23:19:38+00:00

Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki

cpupower: bench: parse.c: fix several resource leaks

2016-04-28T14:02:28+00:00

The error handling in prepare_output has several issues with resource leaks. Ensure that filename is free'd and the directory stream DIR is closed before returning. Signed-off-by: Colin Ian King Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki

cpupower: bench: parse.c: Fix several minor errors

2014-07-29T23:57:13+00:00

Resolved several minor errors in prepare_config() and made some additional improvements. Earlier, the risk of file stream that was not closed. Misuse of strncpy, and the use of strncmp with strlen that makes it pointless. I also check that sscanf has been successful, otherwise continue to the next line. And minimized the use of magic numbers. This was found using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki

cpupowerutils: bench - ConfigStyle bugfixes

2011-07-29T16:35:38+00:00

Signed-off-by: Dominik Brodowski

cpupowerutils - cpufrequtils extended with quite some features

2011-07-29T16:35:36+00:00

CPU power consumption vs performance tuning is no longer limited to CPU frequency switching anymore: deep sleep states, traditional dynamic frequency scaling and hidden turbo/boost frequencies are tied close together and depend on each other. The first two exist on different architectures like PPC, Itanium and ARM, the latter (so far) only on X86. On X86 the APU (CPU+GPU) will only run most efficiently if CPU and GPU has proper power management in place. Users and Developers want to have *one* tool to get an overview what their system supports and to monitor and debug CPU power management in detail. The tool should compile and work on as many architectures as possible. Once this tool stabilizes a bit, it is intended to replace the Intel-specific tools in tools/power/x86 Signed-off-by: Dominik Brodowski