From: Julien Grall <julien.grall@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: tokamoto@jp.fujitsu.com, Anton.Kirilov@arm.com,
catalin.marinas@arm.com, will.deacon@arm.com, oleg@redhat.com,
Julien Grall <julien.grall@arm.com>,
alex.bennee@linaro.org, Dave.Martin@arm.com, Daniel.Kiss@arm.com
Subject: [RFC PATCH 2/8] arm64/signal: Update the comment in preserve_sve_context
Date: Fri, 18 Jan 2019 16:46:04 +0000 [thread overview]
Message-ID: <20190118164610.8123-3-julien.grall@arm.com> (raw)
In-Reply-To: <20190118164610.8123-1-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 867a7cea70e5..11e335f489b0 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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next prev parent reply other threads:[~2019-01-18 16:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-18 16:46 [RFC PATCH 0/8] arm64/sve: First steps towards optimizing syscalls Julien Grall
2019-01-18 16:46 ` [RFC PATCH 1/8] arm64/fpsimd: Update documentation of do_sve_acc Julien Grall
2019-01-21 12:13 ` Mark Rutland
2019-01-22 16:03 ` Julien Grall
2019-01-18 16:46 ` Julien Grall [this message]
2019-01-21 12:17 ` [RFC PATCH 2/8] arm64/signal: Update the comment in preserve_sve_context Mark Rutland
2019-01-18 16:46 ` [RFC PATCH 3/8] arm64/fpsimdmacros: Allow the macro "for" to be used in more cases Julien Grall
2019-01-18 16:46 ` [RFC PATCH 4/8] arm64/fpsimdmacros: Introduce a macro to update ZCR_EL1.LEN Julien Grall
2019-01-18 16:46 ` [RFC PATCH 5/8] arm64/sve: Implement helper to flush SVE registers Julien Grall
2019-01-18 16:46 ` [RFC PATCH 6/8] arm64/sve: Implement helper to load SVE registers from FPSIMD state Julien Grall
2019-01-18 16:46 ` [RFC PATCH 7/8] arm64/sve: Don't disable SVE on syscalls return Julien Grall
2019-01-18 16:46 ` [RFC PATCH 8/8] arm64/sve: Rework SVE trap access to use TIF_SVE_NEEDS_FLUSH Julien Grall
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