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Subject[PATCH 25/30] KVM: arm64: vgic-v3: Use kstrtobool() instead of strtobool()
strtobool() is the same as kstrtobool().
However, the latter is more used within the kernel.

In order to remove strtobool() and slightly simplify kstrtox.h, switch to
the other function name.

While at it, include the corresponding header file (<linux/kstrtox.h>)

Signed-off-by: Christophe JAILLET <>
This patch is part of a serie that axes all usages of strtobool().
Each patch can be applied independently from the other ones.

The last patch of the serie removes the definition of strtobool().

You may not be in copy of the cover letter. So, if needed, it is available
at [1].

This patch has NOT been compile tested.

arch/arm64/kvm/vgic/vgic-v3.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index 826ff6f2a4e7..efb2726efbb3 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -3,6 +3,7 @@
#include <linux/irqchip/arm-gic-v3.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
+#include <linux/kstrtox.h>
#include <linux/kvm.h>
#include <linux/kvm_host.h>
#include <kvm/arm_vgic.h>
@@ -587,25 +588,25 @@ DEFINE_STATIC_KEY_FALSE(vgic_v3_cpuif_trap);

static int __init early_group0_trap_cfg(char *buf)
- return strtobool(buf, &group0_trap);
+ return kstrtobool(buf, &group0_trap);
early_param("kvm-arm.vgic_v3_group0_trap", early_group0_trap_cfg);

static int __init early_group1_trap_cfg(char *buf)
- return strtobool(buf, &group1_trap);
+ return kstrtobool(buf, &group1_trap);
early_param("kvm-arm.vgic_v3_group1_trap", early_group1_trap_cfg);

static int __init early_common_trap_cfg(char *buf)
- return strtobool(buf, &common_trap);
+ return kstrtobool(buf, &common_trap);
early_param("kvm-arm.vgic_v3_common_trap", early_common_trap_cfg);

static int __init early_gicv4_enable(char *buf)
- return strtobool(buf, &gicv4_enable);
+ return kstrtobool(buf, &gicv4_enable);
early_param("kvm-arm.vgic_v4_enable", early_gicv4_enable);

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