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From: Amit Daniel Kachhap <amit.kachhap@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>,
	Kees Cook <keescook@chromium.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Kristina Martsenko <kristina.martsenko@arm.com>,
	Dave Martin <Dave.Martin@arm.com>,
	Mark Brown <broonie@kernel.org>,
	James Morse <james.morse@arm.com>,
	Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>,
	Amit Daniel Kachhap <amit.kachhap@arm.com>,
	Vincenzo Frascino <Vincenzo.Frascino@arm.com>,
	Will Deacon <will@kernel.org>, Ard Biesheuvel <ardb@kernel.org>
Subject: [PATCH v6 07/18] arm64: cpufeature: Move cpu capability helpers inside C file
Date: Fri,  6 Mar 2020 12:05:14 +0530	[thread overview]
Message-ID: <1583476525-13505-8-git-send-email-amit.kachhap@arm.com> (raw)
In-Reply-To: <1583476525-13505-1-git-send-email-amit.kachhap@arm.com>

These helpers are used only by functions inside cpufeature.c and
hence makes sense to be moved from cpufeature.h to cpufeature.c as
they are not expected to be used globaly.

This change helps in reducing the header file size as well as to add
future cpu capability types without confusion. Only a cpu capability
type macro is sufficient to expose those capabilities globally.

Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
---
Changes since v5:
 * New patch.

 arch/arm64/include/asm/cpufeature.h | 12 ------------
 arch/arm64/kernel/cpufeature.c      | 13 +++++++++++++
 2 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index 0fd1feb..ae9673a 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -340,18 +340,6 @@ static inline int cpucap_default_scope(const struct arm64_cpu_capabilities *cap)
 	return cap->type & ARM64_CPUCAP_SCOPE_MASK;
 }
 
-static inline bool
-cpucap_late_cpu_optional(const struct arm64_cpu_capabilities *cap)
-{
-	return !!(cap->type & ARM64_CPUCAP_OPTIONAL_FOR_LATE_CPU);
-}
-
-static inline bool
-cpucap_late_cpu_permitted(const struct arm64_cpu_capabilities *cap)
-{
-	return !!(cap->type & ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU);
-}
-
 /*
  * Generic helper for handling capabilties with multiple (match,enable) pairs
  * of call backs, sharing the same capability bit.
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index b12e386..865dce6 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -1363,6 +1363,19 @@ static bool can_use_gic_priorities(const struct arm64_cpu_capabilities *entry,
 }
 #endif
 
+/* Internal helper functions to match cpu capability type */
+static bool
+cpucap_late_cpu_optional(const struct arm64_cpu_capabilities *cap)
+{
+	return !!(cap->type & ARM64_CPUCAP_OPTIONAL_FOR_LATE_CPU);
+}
+
+static bool
+cpucap_late_cpu_permitted(const struct arm64_cpu_capabilities *cap)
+{
+	return !!(cap->type & ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU);
+}
+
 static const struct arm64_cpu_capabilities arm64_features[] = {
 	{
 		.desc = "GIC system register CPU interface",
-- 
2.7.4


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  parent reply	other threads:[~2020-03-06  6:37 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-06  6:35 [PATCH v6 00/18] arm64: return address signing Amit Daniel Kachhap
2020-03-06  6:35 ` [PATCH v6 01/18] arm64: cpufeature: Fix meta-capability cpufeature check Amit Daniel Kachhap
2020-03-10 10:59   ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 02/18] arm64: cpufeature: add pointer auth meta-capabilities Amit Daniel Kachhap
2020-03-10 11:18   ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 03/18] arm64: rename ptrauth key structures to be user-specific Amit Daniel Kachhap
2020-03-10 11:35   ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 04/18] arm64: install user ptrauth keys at kernel exit time Amit Daniel Kachhap
2020-03-06 19:07   ` James Morse
2020-03-10 11:48     ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 05/18] arm64: create macro to park cpu in an infinite loop Amit Daniel Kachhap
2020-03-10 12:02   ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 06/18] arm64: ptrauth: Add bootup/runtime flags for __cpu_setup Amit Daniel Kachhap
2020-03-06 19:07   ` James Morse
2020-03-09 17:04     ` Catalin Marinas
2020-03-10 12:14   ` Vincenzo Frascino
2020-03-11  9:28     ` Amit Kachhap
2020-03-06  6:35 ` Amit Daniel Kachhap [this message]
2020-03-10 12:20   ` [PATCH v6 07/18] arm64: cpufeature: Move cpu capability helpers inside C file Vincenzo Frascino
2020-03-10 12:53     ` Amit Kachhap
2020-03-11 10:50       ` Catalin Marinas
2020-03-11 11:44         ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 08/18] arm64: cpufeature: handle conflicts based on capability Amit Daniel Kachhap
2020-03-10 12:31   ` Vincenzo Frascino
2020-03-11 11:03     ` Catalin Marinas
2020-03-11 11:46       ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 09/18] arm64: enable ptrauth earlier Amit Daniel Kachhap
2020-03-10 15:45   ` Vincenzo Frascino
2020-03-11  6:26     ` Amit Kachhap
2020-03-11 10:26       ` Vincenzo Frascino
2020-03-11 10:46         ` Amit Kachhap
2020-03-11 10:49           ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 10/18] arm64: initialize and switch ptrauth kernel keys Amit Daniel Kachhap
2020-03-10 15:07   ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 11/18] arm64: initialize ptrauth keys for kernel booting task Amit Daniel Kachhap
2020-03-10 15:09   ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 12/18] arm64: mask PAC bits of __builtin_return_address Amit Daniel Kachhap
2020-03-06 19:07   ` James Morse
2020-03-09 12:27     ` Amit Kachhap
2020-03-06  6:35 ` [PATCH v6 13/18] arm64: unwind: strip PAC from kernel addresses Amit Daniel Kachhap
2020-03-09 19:03   ` James Morse
2020-03-10 12:28     ` Amit Kachhap
2020-03-10 17:37       ` James Morse
2020-03-11  6:07         ` Amit Kachhap
2020-03-11  9:09           ` James Morse
2020-03-06  6:35 ` [PATCH v6 14/18] arm64: __show_regs: strip PAC from lr in printk Amit Daniel Kachhap
2020-03-10 15:11   ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 15/18] arm64: suspend: restore the kernel ptrauth keys Amit Daniel Kachhap
2020-03-10 15:18   ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 16/18] kconfig: Add support for 'as-option' Amit Daniel Kachhap
2020-03-06 11:37   ` Masahiro Yamada
2020-03-06 11:49     ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 17/18] arm64: compile the kernel with ptrauth return address signing Amit Daniel Kachhap
2020-03-10 15:20   ` Vincenzo Frascino
2020-03-06  6:35 ` [PATCH v6 18/18] lkdtm: arm64: test kernel pointer authentication Amit Daniel Kachhap
2020-03-10 15:59 ` [PATCH v6 00/18] arm64: return address signing Rémi Denis-Courmont
2020-03-11  9:28 ` James Morse
2020-03-12  6:53   ` Amit Kachhap
2020-03-12  8:06     ` Amit Kachhap
2020-03-12 12:47       ` [PATCH v6 00/18] (as long a Marc Zyngier
2020-03-12 13:21         ` Amit Kachhap
2020-03-12 15:05           ` [PATCH v6 00/18] arm64: return address signing Marc Zyngier
2020-03-12 17:26             ` James Morse
2020-03-12 17:31               ` Marc Zyngier

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