cpumask: eliminate kernel-doc warnings

Update lib/cpumask.c and <linux/cpumask.h> to fix all kernel-doc
warnings:

include/linux/cpumask.h:185: warning: Function parameter or member 'srcp1' not described in 'cpumask_first_and'
include/linux/cpumask.h:185: warning: Function parameter or member 'srcp2' not described in 'cpumask_first_and'
include/linux/cpumask.h:185: warning: Excess function parameter 'src1p' description in 'cpumask_first_and'
include/linux/cpumask.h:185: warning: Excess function parameter 'src2p' description in 'cpumask_first_and'

lib/cpumask.c:59: warning: Function parameter or member 'node' not described in 'alloc_cpumask_var_node'
lib/cpumask.c:169: warning: Function parameter or member 'src1p' not described in 'cpumask_any_and_distribute'
lib/cpumask.c:169: warning: Function parameter or member 'src2p' not described in 'cpumask_any_and_distribute'

Fixes: 7b4967c53204 ("cpumask: Add alloc_cpumask_var_node()")
Fixes: 839cad5fa54b ("cpumask: fix function description kernel-doc notation")
Fixes: 93ba139ba819 ("cpumask: use find_first_and_bit()")
Signed-off-by: Randy Dunlap <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>
Signed-off-by: Yury Norov <[e-mail]>

include/linux/cpumask.h

···
 
 /**
  * cpumask_first_and - return the first cpu from *srcp1 & *srcp2
- * @src1p: the first input
- * @src2p: the second input
+ * @srcp1: the first input
+ * @srcp2: the second input
  *
  * Returns >= nr_cpu_ids if no cpus set in both.  See also cpumask_next_and().
  */
···
 /**
  * cpumap_print_list_to_buf  - copies the cpumask into the buffer as
  *	comma-separated list of cpus
+ * @buf: the buffer to copy into
+ * @mask: the cpumask to copy
+ * @off: in the string from which we are copying, we copy to @buf
+ * @count: the maximum number of bytes to print
  *
  * Everything is same with the above cpumap_print_bitmask_to_buf()
  * except the print format.

lib/cpumask.c

···
  * alloc_cpumask_var_node - allocate a struct cpumask on a given node
  * @mask: pointer to cpumask_var_t where the cpumask is returned
  * @flags: GFP_ flags
+ * @node: memory node from which to allocate or %NUMA_NO_NODE
  *
  * Only defined when CONFIG_CPUMASK_OFFSTACK=y, otherwise is
  * a nop returning a constant 1 (in <linux/cpumask.h>)
···
 static DEFINE_PER_CPU(int, distribute_cpu_mask_prev);
 
 /**
- * cpumask_any_and_distribute - Return an arbitrary cpu within srcp1 & srcp2.
+ * cpumask_any_and_distribute - Return an arbitrary cpu within src1p & src2p.
+ * @src1p: first &cpumask for intersection
+ * @src2p: second &cpumask for intersection
  *
  * Iterated calls using the same srcp1 and srcp2 will be distributed within
  * their intersection.