Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-13 16:40:22 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

powerpc: Call check_if_tm_restore_required() in enable_kernel_*()

Browse Source 
Commit a0e72cf12b1a ("powerpc: Create msr_check_and_{set,clear}()")
removed a call to check_if_tm_restore_required() in the
enable_kernel_*() functions. Add them back in.

Fixes: a0e72cf12b1a ("powerpc: Create msr_check_and_{set,clear}()")
Reported-by: Rashmica Gupta <rashmicy@gmail.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Anton Blanchard 2015-12-10 20:04:05 +11:00 committed by Michael Ellerman
parent d1e1cf2e38
commit d64d02ce4e
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
arch/powerpc/kernel/process.c
View File

@ -181,8 +181,10 @@ void enable_kernel_fp(void)
msr_check_and_set(MSR_FP);
if (current->thread.regs && (current->thread.regs->msr & MSR_FP))
if (current->thread.regs && (current->thread.regs->msr & MSR_FP)) {
check_if_tm_restore_required(current);
__giveup_fpu(current);
}
}
EXPORT_SYMBOL(enable_kernel_fp);
#endif /* CONFIG_PPC_FPU */
@ -204,8 +206,10 @@ void enable_kernel_altivec(void)
msr_check_and_set(MSR_VEC);
if (current->thread.regs && (current->thread.regs->msr & MSR_VEC))
if (current->thread.regs && (current->thread.regs->msr & MSR_VEC)) {
check_if_tm_restore_required(current);
__giveup_altivec(current);
}
}
EXPORT_SYMBOL(enable_kernel_altivec);
@ -249,6 +253,7 @@ void enable_kernel_vsx(void)
msr_check_and_set(MSR_FP|MSR_VEC|MSR_VSX);
if (current->thread.regs && (current->thread.regs->msr & MSR_VSX)) {
check_if_tm_restore_required(current);
if (current->thread.regs->msr & MSR_FP)
__giveup_fpu(current);
if (current->thread.regs->msr & MSR_VEC)
@ -289,8 +294,10 @@ void enable_kernel_spe(void)
msr_check_and_set(MSR_SPE);
if (current->thread.regs && (current->thread.regs->msr & MSR_SPE))
if (current->thread.regs && (current->thread.regs->msr & MSR_SPE)) {
check_if_tm_restore_required(current);
__giveup_spe(current);
}
}
EXPORT_SYMBOL(enable_kernel_spe);