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authorTakashi Iwai <tiwai@suse.de>2016-03-07 11:06:46 +0100
committerTakashi Iwai <tiwai@suse.de>2016-03-07 11:06:46 +0100
commitad09ef2cce91e3a98a32e3bb0a5982a6e8920aa1 (patch)
tree6d46455cb546b65b041acc1293043c71ef93da40 /arch/mips/include/asm/fpu.h
parent790b415c98de62602810b0eedce26f0f9d6ddd78 (diff)
parent02db17ff376893f65f45974b0897e70e6695034e (diff)
Merge tag 'asoc-fix-v4.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linussound-4.5
ASoC: Fixes for v4.5 This is far too big a set of fixes for this late in the release cycle but the overwhelming bulk is essentially the same simple fix from Takashi for a cut'n'pasted 64 bit cleanliness issue in the userspace interface where drivers were accessing things using the wrong element in a union which worked OK on 32 bit platforms as the correct element happened to be aligned the same way but with 64 bit platforms ABIs are different and the two members of the union are laid out in different places. They aren't all tagged to stable since some of these chips have vanishingly little chance of being used in 64 bit systems. The other changes are: - A fix for Qualcomm devices to work on big endian systems. The original change is actually correct but triggered a bug in regmap which is too invasive to fix for this cycle and can be worked around by just letting regmap pick the default. - A fix for the Samsung I2S driver locking which wasn't using IRQ safe spinlocks when it needed to. - A fix for the new Intel Sky Lake driver forgetting that C pointer arithmetic takes the type of the pointer into consideration. - A revert of a change to the FSL SSI driver that broke some systems. - A fix for the cleanup path of the wm9713 driver. - A fix for some incorrect register definitions in the ADAU17x1 driver that caused misclocking in some configurations. - A fix for the tracepoints for jack detection to avoid using an internal field of the core jack structure which is no longer present in all configurations. - A fix for another of the new Intel drivers which tried to write to a string literal.
Diffstat (limited to 'arch/mips/include/asm/fpu.h')
-rw-r--r--arch/mips/include/asm/fpu.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index 9cbf383b8834..f06f97bd62df 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -179,6 +179,10 @@ static inline void lose_fpu_inatomic(int save, struct task_struct *tsk)
if (save)
_save_fp(tsk);
__disable_fpu();
+ } else {
+ /* FPU should not have been left enabled with no owner */
+ WARN(read_c0_status() & ST0_CU1,
+ "Orphaned FPU left enabled");
}
KSTK_STATUS(tsk) &= ~ST0_CU1;
clear_tsk_thread_flag(tsk, TIF_USEDFPU);