/* * This header provides constants for binding nvidia,tegra*-gpio. * * The first cell in Tegra's GPIO specifier is the GPIO ID. The macros below * provide names for this. * * The second cell contains standard flag values specified in gpio.h. */ #ifndef _DT_BINDINGS_GPIO_TEGRA_GPIO_H #define _DT_BINDINGS_GPIO_TEGRA_GPIO_H #include #define TEGRA_GPIO_PORT_A 0 #define TEGRA_GPIO_PORT_B 1 #define TEGRA_GPIO_PORT_C 2 #define TEGRA_GPIO_PORT_D 3 #define TEGRA_GPIO_PORT_E 4 #define TEGRA_GPIO_PORT_F 5 #define TEGRA_GPIO_PORT_G 6 #define TEGRA_GPIO_PORT_H 7 #define TEGRA_GPIO_PORT_I 8 #define TEGRA_GPIO_PORT_J 9 #define TEGRA_GPIO_PORT_K 10 #define TEGRA_GPIO_PORT_L 11 #define TEGRA_GPIO_PORT_M 12 #define TEGRA_GPIO_PORT_N 13 #define TEGRA_GPIO_PORT_O 14 #define TEGRA_GPIO_PORT_P 15 #define TEGRA_GPIO_PORT_Q 16 #define TEGRA_GPIO_PORT_R 17 #define TEGRA_GPIO_PORT_S 18 #define TEGRA_GPIO_PORT_T 19 #define TEGRA_GPIO_PORT_U 20 #define TEGRA_GPIO_PORT_V 21 #define TEGRA_GPIO_PORT_W 22 #define TEGRA_GPIO_PORT_X 23 #define TEGRA_GPIO_PORT_Y 24 #define TEGRA_GPIO_PORT_Z 25 #define TEGRA_GPIO_PORT_AA 26 #define TEGRA_GPIO_PORT_BB 27 #define TEGRA_GPIO_PORT_CC 28 #define TEGRA_GPIO_PORT_DD 29 #define TEGRA_GPIO_PORT_EE 30 #define TEGRA_GPIO_PORT_FF 31 #define TEGRA_GPIO(port, offset) \ ((TEGRA_GPIO_PORT_##port * 8) + offset) #endif bmit' value='switch'/> net-next plumbingsTobias Klauser
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authorTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
committerTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
commit07cd12945551b63ecb1a349d50a6d69d1d6feb4a (patch)
tree75f65eba7eac9277971082a2d5a4cf1370562c0c /net/switchdev
parent7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
cgroup: don't online subsystems before cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'net/switchdev')