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From: Julien Grall <julien.grall@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Anton.Kirilov@arm.com, catalin.marinas@arm.com,
	will.deacon@arm.com, oleg@redhat.com, zhang.lei@jp.fujitsu.com,
	Julien Grall <julien.grall@arm.com>,
	alex.bennee@linaro.org, Dave.Martin@arm.com, Daniel.Kiss@arm.com
Subject: [RFC PATCH v2 2/8] arm64/signal: Update the comment in preserve_sve_context
Date: Thu, 13 Jun 2019 17:16:50 +0100	[thread overview]
Message-ID: <20190613161656.20765-3-julien.grall@arm.com> (raw)
In-Reply-To: <20190613161656.20765-1-julien.grall@arm.com>

The SVE state is saved by fpsimd_signal_preserve_current_state() and not
preserve_fpsimd_context(). Update the comment in preserve_sve_context to
reflect the current behavior.

Signed-off-by: Julien Grall <julien.grall@arm.com>
---
 arch/arm64/kernel/signal.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index a9b0485df074..ab3e56bbfb07 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -255,7 +255,8 @@ static int preserve_sve_context(struct sve_context __user *ctx)
 	if (vq) {
 		/*
 		 * This assumes that the SVE state has already been saved to
-		 * the task struct by calling preserve_fpsimd_context().
+		 * the task struct by calling the function
+		 * fpsimd_signal_preserve_current_state().
 		 */
 		err |= __copy_to_user((char __user *)ctx + SVE_SIG_REGS_OFFSET,
 				      current->thread.sve_state,
-- 
2.11.0


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  parent reply	other threads:[~2019-06-13 16:17 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-13 16:16 [RFC PATCH v2 0/8] arm64/sve: First steps towards optimizing syscalls Julien Grall
2019-06-13 16:16 ` [RFC PATCH v2 1/8] arm64/fpsimd: Update documentation of do_sve_acc Julien Grall
2019-06-13 16:19   ` Julien Grall
2019-06-21 15:32   ` Dave Martin
2019-06-13 16:16 ` Julien Grall [this message]
2019-06-21 15:32   ` [RFC PATCH v2 2/8] arm64/signal: Update the comment in preserve_sve_context Dave Martin
2019-06-13 16:16 ` [RFC PATCH v2 3/8] arm64/fpsimdmacros: Allow the macro "for" to be used in more cases Julien Grall
2019-06-21 15:32   ` Dave Martin
2019-06-24 16:10     ` Julien Grall
2019-06-25  9:35       ` Dave Martin
2019-06-13 16:16 ` [RFC PATCH v2 4/8] arm64/fpsimdmacros: Introduce a macro to update ZCR_EL1.LEN Julien Grall
2019-06-21 15:32   ` Dave Martin
2019-06-13 16:16 ` [RFC PATCH v2 5/8] arm64/sve: Implement an helper to flush SVE registers Julien Grall
2019-06-21 15:33   ` Dave Martin
2019-06-24 16:28     ` Julien Grall
2019-06-25  9:37       ` Dave Martin
2019-06-13 16:16 ` [RFC PATCH v2 6/8] arm64/sve: Implement an helper to load SVE registers from FPSIMD state Julien Grall
2019-06-21 15:33   ` Dave Martin
2019-06-24 16:29     ` Julien Grall
2019-06-13 16:16 ` [RFC PATCH v2 7/8] arm64/sve: Don't disable SVE on syscalls return Julien Grall
2019-06-21 15:33   ` Dave Martin
2019-06-24 16:44     ` Julien Grall
2019-06-25  9:41       ` Dave Martin
2019-07-04 14:15     ` Catalin Marinas
2019-08-02 11:06       ` Julien Grall
2019-06-13 16:16 ` [RFC PATCH v2 8/8] arm64/sve: Rework SVE trap access to use TIF_SVE_NEEDS_FLUSH Julien Grall
2019-06-21 15:33   ` Dave Martin
2019-06-21 15:32 ` [RFC PATCH v2 0/8] arm64/sve: First steps towards optimizing syscalls Dave Martin

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