From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave.Martin@arm.com (Dave Martin) Date: Fri, 28 Jul 2017 15:02:09 +0100 Subject: [PATCH] squash! arm64: neon: Allow EFI runtime services to use FPSIMD in irq context In-Reply-To: <1501249824-18913-6-git-send-email-Dave.Martin@arm.com> References: <1501249824-18913-6-git-send-email-Dave.Martin@arm.com> Message-ID: <1501250529-23303-1-git-send-email-Dave.Martin@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Fix misleading usage of efi_fpsimd_state_used. Currently it's used to mean "efi_fpsimd_state not used", which is confusing to say the least. This patch inverts the sense of usage. Signed-off-by: Dave Martin --- arch/arm64/kernel/fpsimd.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 601063c..138fcfa 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -347,11 +347,12 @@ void __efi_fpsimd_begin(void) WARN_ON(preemptible()); - if (may_use_simd()) { + if (may_use_simd()) kernel_neon_begin(); - __this_cpu_write(efi_fpsimd_state_used, true); - } else + else { fpsimd_save_state(this_cpu_ptr(&efi_fpsimd_state)); + __this_cpu_write(efi_fpsimd_state_used, true); + } } /* @@ -363,9 +364,9 @@ void __efi_fpsimd_end(void) return; if (__this_cpu_xchg(efi_fpsimd_state_used, false)) - kernel_neon_end(); - else fpsimd_load_state(this_cpu_ptr(&efi_fpsimd_state)); + else + kernel_neon_end(); } #endif /* CONFIG_KERNEL_MODE_NEON */ -- 2.1.4