random: remove unused irq_flags argument from add_interrupt_randomness()

commit 703f7066f40599c290babdb79dd61319264987e9 upstream.

Since commit
   ee3e00e9e7101 ("random: use registers from interrupted code for CPU's w/o a cycle counter")

the irq_flags argument is no longer used.

Remove unused irq_flags.

Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: linux-hyperv@vger.kernel.org
Cc: x86@kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index ef6316f..ba0efc3 100644 (file)
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -79,7 +79,7 @@ DEFINE_IDTENTRY_SYSVEC(sysvec_hyperv_stimer0)
        inc_irq_stat(hyperv_stimer0_count);
        if (hv_stimer0_handler)
                hv_stimer0_handler();
-       add_interrupt_randomness(HYPERV_STIMER0_VECTOR, 0);
+       add_interrupt_randomness(HYPERV_STIMER0_VECTOR);
        ack_APIC_irq();
 
        set_irq_regs(old_regs);

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 9625acd..4d6c5a5 100644 (file)
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -200,7 +200,7 @@
  *     void add_device_randomness(const void *buf, unsigned int size);
  *     void add_input_randomness(unsigned int type, unsigned int code,
  *                                unsigned int value);
- *     void add_interrupt_randomness(int irq, int irq_flags);
+ *     void add_interrupt_randomness(int irq);
  *     void add_disk_randomness(struct gendisk *disk);
  *     void add_hwgenerator_randomness(const char *buffer, size_t count,
  *                                     size_t entropy);
@@ -1273,7 +1273,7 @@ static __u32 get_reg(struct fast_pool *f, struct pt_regs *regs)
        return *ptr;
 }
 
-void add_interrupt_randomness(int irq, int irq_flags)
+void add_interrupt_randomness(int irq)
 {
        struct entropy_store    *r;
        struct fast_pool        *fast_pool = this_cpu_ptr(&irq_randomness);

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index aea8125..50d9113 100644 (file)
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1381,7 +1381,7 @@ static void vmbus_isr(void)
                        tasklet_schedule(&hv_cpu->msg_dpc);
        }
 
-       add_interrupt_randomness(vmbus_interrupt, 0);
+       add_interrupt_randomness(vmbus_interrupt);
 }
 
 static irqreturn_t vmbus_percpu_isr(int irq, void *dev_id)

diff --git a/include/linux/random.h b/include/linux/random.h
index f45b8be..c45b269 100644 (file)
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -35,7 +35,7 @@ static inline void add_latent_entropy(void) {}
 
 extern void add_input_randomness(unsigned int type, unsigned int code,
                                 unsigned int value) __latent_entropy;
-extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy;
+extern void add_interrupt_randomness(int irq) __latent_entropy;
 
 extern void get_random_bytes(void *buf, int nbytes);
 extern int wait_for_random_bytes(void);

diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 221d80c..fca637d 100644 (file)
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -195,7 +195,7 @@ irqreturn_t handle_irq_event_percpu(struct irq_desc *desc)
 
        retval = __handle_irq_event_percpu(desc, &flags);
 
-       add_interrupt_randomness(desc->irq_data.irq, flags);
+       add_interrupt_randomness(desc->irq_data.irq);
 
        if (!irq_settings_no_debug(desc))
                note_interrupt(desc, retval);