locking/atomic, crypto/nx: Remove redundant casts

Now that atomic64_read() returns s64 consistently, we don't need to
explicitly cast its return value. Drop the redundant casts.

Signed-off-by: Mark Rutland <[e-mail]>
Signed-off-by: Peter Zijlstra (Intel) <[e-mail]>
Cc: Herbert Xu <[e-mail]>
Cc: Linus Torvalds <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Cc: Will Deacon <[e-mail]>
Cc: [e-mail]
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Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Ingo Molnar <[e-mail]>

drivers/crypto/nx/nx-842-pseries.c

···
 	local_devdata = rcu_dereference(devdata);			\
 	if (local_devdata)						\
 		p = snprintf(buf, PAGE_SIZE, "%lld\n",			\
-		       (s64)atomic64_read(&local_devdata->counters->_name));	\
+		       atomic64_read(&local_devdata->counters->_name));	\
 	rcu_read_unlock();						\
 	return p;							\
 }
···
 	for (i = 0; i < (NX842_HIST_SLOTS - 2); i++) {
 		bytes = snprintf(p, bytes_remain, "%u-%uus:\t%lld\n",
 			       i ? (2<<(i-1)) : 0, (2<<i)-1,
-			       (s64)atomic64_read(&times[i]));
+			       atomic64_read(&times[i]));
 		bytes_remain -= bytes;
 		p += bytes;
 	}
···
 	 * 2<<(NX842_HIST_SLOTS - 2) us */
 	bytes = snprintf(p, bytes_remain, "%uus - :\t%lld\n",
 			2<<(NX842_HIST_SLOTS - 2),
-			(s64)atomic64_read(&times[(NX842_HIST_SLOTS - 1)]));
+			atomic64_read(&times[(NX842_HIST_SLOTS - 1)]));
 	p += bytes;
 
 	rcu_read_unlock();