Remove some redundant assignments and computations.

[markj]

Summary

Reported by: alc

[kib]

sys/dev/md/md.c

1561

I do not see much sense in asserting this, but do not object strongly.

[alc]

sys/compat/linuxkpi/common/src/linux_page.c

223

AFAIK, the mips and powerpc versions of ptoa() have a single implementation that is used on both 32- and 64-bit machines, and on 64-bit machine there is no guarantee that the argument is converted to a 64-bit quantity.

[markj]

Address feedback.

[kib]

sys/compat/linuxkpi/common/src/linux_page.c

223

I think size_t or vm_offset_t would be better there.

[markj]

Use vm_offset_t instead.

[alc]

sys/compat/linuxkpi/common/src/linux_page.c

202

Here is another possible ptoa() conversion that is identical to the first.