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Subject[PATCH v2] 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 was already sent as a part of a serie ([1]) that axed all usages
of strtobool().
Most of the patches have been merged in -next.

I synch'ed with latest -next and re-send the remaining ones as individual

Changes in v2:
- now compile tested with make.cross, ARCH=arm64 and compiler from

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 2074521d4a8c..9d63149d9e53 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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