Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

Pull bitmap updates from Yury Norov:
 "The usual set of fixes, cleanups and performance improvements together
  with a couple of new tests:

   - bitmap_find_next_zero_area_off() optimization (Sunyi)

   - bitmap_find_next_zero_area_off(): return size when no zero area is
     found (Yury)

   - bitmap vs IDA vs Maple Tree performance test (Yury)

   - get rid of cpumap_print_to_pagebuf() (Yury)

   - use nr_node_ids in __nodemask_pr_numnodes() (Li RongQing)

   - bitops: make the *_bit_le functions use unsigned long (Benjamin)

   - bitmap scatter & gather test fix (Christophe)

   - use __ASSEMBLER__ in bitmap header files (Thomas)"

* tag 'bitmap-for-7.3' of https://github.com/norov/linux: (25 commits)
  lib: test bitmap vs IDA vs Maple Tree performance for region allocations
  bitmap: Return size when no zero area is found
  media: s5p-mfc: Treat bitmap size as allocation failure
  crypto: ccp: Treat bitmap size as allocation failure
  powerpc/msi: Treat bitmap size as allocation failure
  ARM: dma-mapping: Treat bitmap size as allocation failure
  bitmap: drop bitmap_next_set_region()
  nodemask: reduce bitmap width to nr_node_ids in __nodemask_pr_numnodes()
  bitmap: Properly initialise destination bitmap for scatter & gather test
  lib/bitmap-str: get rid of cpumap_print_to_pagebuf()
  perf: Use sysfs_emit() for cpumask show callbacks
  PCI/sysfs: Use sysfs_emit() for cpumask show callbacks
  RDMA/hfi1: Use sysfs_emit() for cpumask show helper
  hwtracing: hisi_ptt: Use sysfs_emit() for cpumask show
  fpga: dfl-fme-perf: Use sysfs_emit() for cpumask show
  devfreq: Use sysfs_emit() for cpumask show callbacks
  cpu: Use sysfs_emit() for cpumask show callback
  x86/events: Use sysfs_emit() for cpumask show callbacks
  powerpc: Use sysfs_emit() for cpumask show callbacks
  arm: Use sysfs_emit() for cpumask show callbacks
  ...

4 files changed, 17 insertions, 38 deletions

diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index b007d54a9036..7df1573a409c 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -2,7 +2,7 @@
 #ifndef __LINUX_BITMAP_H
 #define __LINUX_BITMAP_H
 
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
 
 #include <linux/align.h>
 #include <linux/bitops.h>
@@ -209,6 +209,9 @@ unsigned long bitmap_find_next_zero_area_off(unsigned long *map,
  * The @align_mask should be one less than a power of 2; the effect is that
  * the bit offset of all zero areas this function finds is multiples of that
  * power of 2. A @align_mask of 0 means no alignment is required.
+ *
+ * Return: The bit offset of the found area or a value >= @size
+ * if no area is found.
  */
 static __always_inline
 unsigned long bitmap_find_next_zero_area(unsigned long *map,
@@ -697,14 +700,6 @@ void bitmap_gather(unsigned long *dst, const unsigned long *src,
 		__assign_bit(n++, dst, test_bit(bit, src));
 }
 
-static __always_inline
-void bitmap_next_set_region(unsigned long *bitmap, unsigned int *rs,
-			    unsigned int *re, unsigned int end)
-{
-	*rs = find_next_bit(bitmap, end, *rs);
-	*re = find_next_zero_bit(bitmap, end, *rs + 1);
-}
-
 /**
  * bitmap_release_region - release allocated bitmap region
  *	@bitmap: array of unsigned longs corresponding to the bitmap
@@ -894,6 +889,6 @@ void bitmap_write(unsigned long *map, unsigned long value,
 #define bitmap_set_value8(map, value, start)		\
 	bitmap_write(map, value, start, BITS_PER_BYTE)
 
-#endif /* __ASSEMBLY__ */
+#endif /* __ASSEMBLER__ */
 
 #endif /* __LINUX_BITMAP_H */
diff --git a/include/linux/bits.h b/include/linux/bits.h
index a40cc861b3a7..b7509f15718e 100644
--- a/include/linux/bits.h
+++ b/include/linux/bits.h
@@ -17,7 +17,7 @@
  * position @h. For example
  * GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000.
  */
-#if !defined(__ASSEMBLY__)
+#if !defined(__ASSEMBLER__)
 
 /*
  * Missing asm support
@@ -75,7 +75,7 @@
 #define BIT_U32(nr)	BIT_TYPE(u32, nr)
 #define BIT_U64(nr)	BIT_TYPE(u64, nr)
 
-#else /* defined(__ASSEMBLY__) */
+#else /* defined(__ASSEMBLER__) */
 
 /*
  * BUILD_BUG_ON_ZERO is not available in h files included from asm files,
@@ -84,6 +84,6 @@
 #define GENMASK(h, l)		__GENMASK(h, l)
 #define GENMASK_ULL(h, l)	__GENMASK_ULL(h, l)
 
-#endif /* !defined(__ASSEMBLY__) */
+#endif /* !defined(__ASSEMBLER__) */
 
 #endif	/* __LINUX_BITS_H */
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index d3cda0544954..4c8bb6953107 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -13,7 +13,6 @@
 #include <linux/cpumask_types.h>
 #include <linux/gfp_types.h>
 #include <linux/numa.h>
-#include <linux/sprintf.h>
 #include <linux/threads.h>
 #include <linux/types.h>
 #include <vdso/page.h>
@@ -1316,24 +1315,6 @@ static __always_inline bool cpu_dying(unsigned int cpu)
 #endif /* NR_CPUS > BITS_PER_LONG */
 
 /**
- * cpumap_print_to_pagebuf  - copies the cpumask into the buffer either
- *	as comma-separated list of cpus or hex values of cpumask
- * @list: indicates whether the cpumap must be list
- * @mask: the cpumask to copy
- * @buf: the buffer to copy into
- *
- * Return: the length of the (null-terminated) @buf string, zero if
- * nothing is copied.
- */
-static __always_inline ssize_t
-cpumap_print_to_pagebuf(bool list, char *buf, const struct cpumask *mask)
-{
-	/* Opencode offset_in_page(buf) to not include linux/mm.h */
-	return scnprintf(buf, PAGE_SIZE - ((unsigned long)buf & ~PAGE_MASK),
-			 list ? "%*pbl\n" : "%*pb\n", cpumask_pr_args(mask));
-}
-
-/**
  * cpumap_print_bitmask_to_buf  - copies the cpumask into the buffer as
  *	hex values of cpumask
  *
diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index b842aa525546..607373bd83ee 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -95,6 +95,14 @@
 
 extern nodemask_t _unused_nodemask_arg_;
 
+#if MAX_NUMNODES > 1
+extern unsigned int nr_node_ids;
+extern unsigned int nr_online_nodes;
+#else
+#define nr_node_ids		1U
+#define nr_online_nodes		1U
+#endif
+
 /**
  * nodemask_pr_args - printf args to output a nodemask
  * @maskp: nodemask to be printed
@@ -105,7 +113,7 @@ extern nodemask_t _unused_nodemask_arg_;
 				__nodemask_pr_bits(maskp)
 static __always_inline unsigned int __nodemask_pr_numnodes(const nodemask_t *m)
 {
-	return m ? MAX_NUMNODES : 0;
+	return m ? nr_node_ids : 0;
 }
 static __always_inline const unsigned long *__nodemask_pr_bits(const nodemask_t *m)
 {
@@ -438,9 +446,6 @@ static __always_inline unsigned int next_memory_node(int nid)
 	return next_node(nid, node_states[N_MEMORY]);
 }
 
-extern unsigned int nr_node_ids;
-extern unsigned int nr_online_nodes;
-
 static __always_inline void node_set_online(int nid)
 {
 	node_set_state(nid, N_ONLINE);
@@ -480,8 +485,6 @@ static __always_inline int num_node_state(enum node_states state)
 #define first_memory_node	0
 #define next_online_node(nid)	(MAX_NUMNODES)
 #define next_memory_node(nid)	(MAX_NUMNODES)
-#define nr_node_ids		1U
-#define nr_online_nodes		1U
 
 #define node_set_online(node)	   node_set_state((node), N_ONLINE)
 #define node_set_offline(node)	   node_clear_state((node), N_ONLINE)