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2017-12-18cpufreq: imx6q: fix speed grading regression on i.MX6 QuadPlusLucas Stach1-5/+6
The commit moving the speed grading check to the cpufreq driver introduced some additional checks, so the OPP disable is only attempted on SoCs where those OPPs are present. The compatible checks are missing the QuadPlus compatible, so invalid OPPs are not correctly disabled there. Move both checks to a single condition, so we don't need to sprinkle even more calls to of_machine_is_compatible(). Fixes: 2b3d58a3adca (cpufreq: imx6q: Move speed grading check to cpufreq driver) Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-12-17Linux 4.15-rc4Linus Torvalds1-1/+1
2017-12-17Revert "exec: avoid RLIMIT_STACK races with prlimit()"Kees Cook1-6/+1
This reverts commit 04e35f4495dd560db30c25efca4eecae8ec8c375. SELinux runs with secureexec for all non-"noatsecure" domain transitions, which means lots of processes end up hitting the stack hard-limit change that was introduced in order to fix a race with prlimit(). That race fix will need to be redesigned. Reported-by: Laura Abbott <labbott@redhat.com> Reported-by: Tomáš Trnka <trnka@scm.com> Cc: stable@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-12-17cramfs: fix MTD dependencyArnd Bergmann1-0/+1
With CONFIG_MTD=m and CONFIG_CRAMFS=y, we now get a link failure: fs/cramfs/inode.o: In function `cramfs_mount': inode.c:(.text+0x220): undefined reference to `mount_mtd' fs/cramfs/inode.o: In function `cramfs_mtd_fill_super': inode.c:(.text+0x6d8): undefined reference to `mtd_point' inode.c:(.text+0xae4): undefined reference to `mtd_unpoint' This adds a more specific Kconfig dependency to avoid the broken configuration. Alternatively we could make CRAMFS itself depend on "MTD || !MTD" with a similar result. Fixes: 99c18ce580c6 ("cramfs: direct memory access support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-12-17PM / OPP: Add ti-opp-supply driverDave Gerlach2-0/+426
Introduce a ti-opp-supply driver that will use new multiple regulator support that is part of the OPP core This is needed on TI platforms like DRA7/AM57 in order to control both CPU regulator and Adaptive Body Bias (ABB) regulator. These regulators must be scaled in sequence during an OPP transition depending on whether or not the frequency is being scaled up or down. This driver also implements AVS Class0 for these parts by looking up the required values from registers in the SoC and programming adjusted optimal voltage values for each OPP. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>