lib/bitmap: change type of bitmap_weight to unsigned long

bitmap_weight() doesn't return negative values, so change it's type
to unsigned long. It may help compiler to generate better code and
catch bugs.

Signed-off-by: Yury Norov <[e-mail]>

drivers/dma/ti/k3-udma.c

···
 	switch (ud->match_data->type) {
 	case DMA_TYPE_UDMA:
 		dev_info(dev,
-			 "Channels: %d (tchan: %u, rchan: %u, gp-rflow: %u)\n",
+			 "Channels: %d (tchan: %lu, rchan: %lu, gp-rflow: %lu)\n",
 			 ch_count,
 			 ud->tchan_cnt - bitmap_weight(ud->tchan_map,
 						       ud->tchan_cnt),
···
 		break;
 	case DMA_TYPE_BCDMA:
 		dev_info(dev,
-			 "Channels: %d (bchan: %u, tchan: %u, rchan: %u)\n",
+			 "Channels: %d (bchan: %lu, tchan: %lu, rchan: %lu)\n",
 			 ch_count,
 			 ud->bchan_cnt - bitmap_weight(ud->bchan_map,
 						       ud->bchan_cnt),
···
 		break;
 	case DMA_TYPE_PKTDMA:
 		dev_info(dev,
-			 "Channels: %d (tchan: %u, rchan: %u)\n",
+			 "Channels: %d (tchan: %lu, rchan: %lu)\n",
 			 ch_count,
 			 ud->tchan_cnt - bitmap_weight(ud->tchan_map,
 						       ud->tchan_cnt),

drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c

···
 			set_bit(i, adev->gfx.mec.queue_bitmap);
 	}
 
-	dev_dbg(adev->dev, "mec queue bitmap weight=%d\n", bitmap_weight(adev->gfx.mec.queue_bitmap, AMDGPU_MAX_COMPUTE_QUEUES));
+	dev_dbg(adev->dev, "mec queue bitmap weight=%ld\n", bitmap_weight(adev->gfx.mec.queue_bitmap, AMDGPU_MAX_COMPUTE_QUEUES));
 }
 
 void amdgpu_gfx_graphics_queue_acquire(struct amdgpu_device *adev)

drivers/gpu/drm/i915/display/intel_display_power.c

···
 						     power_domains);
 	enum intel_display_power_domain domain;
 
-	drm_dbg(&i915->drm, "%s (%d):\n", prefix, bitmap_weight(mask->bits, POWER_DOMAIN_NUM));
+	drm_dbg(&i915->drm, "%s (%ld):\n", prefix, bitmap_weight(mask->bits, POWER_DOMAIN_NUM));
 	for_each_power_domain(domain, mask)
 		drm_dbg(&i915->drm, "%s use_count %d\n",
 			intel_display_power_domain_str(domain),

drivers/gpu/drm/msm/disp/mdp5/mdp5_smp.c

···
 	}
 
 	drm_printf(p, "TOTAL:\t%d\t(of %d)\n", total, smp->blk_cnt);
-	drm_printf(p, "AVAIL:\t%d\n", smp->blk_cnt -
+	drm_printf(p, "AVAIL:\t%ld\n", smp->blk_cnt -
 			bitmap_weight(state->state, smp->blk_cnt));
 
 	if (drm_can_sleep())

drivers/iommu/intel/iommu.c

···
 				 struct device_attribute *attr, char *buf)
 {
 	struct intel_iommu *iommu = dev_to_intel_iommu(dev);
-	return sprintf(buf, "%d\n", bitmap_weight(iommu->domain_ids,
+	return sprintf(buf, "%ld\n", bitmap_weight(iommu->domain_ids,
 						  cap_ndoms(iommu->cap)));
 }
 static DEVICE_ATTR_RO(domains_used);

drivers/net/ethernet/mellanox/mlx4/fw.c

···
 
 		field = min(
 			bitmap_weight(actv_ports.ports, dev->caps.num_ports),
-			dev->caps.num_ports);
+			(unsigned long)dev->caps.num_ports);
 		MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
 
 		size = dev->caps.function_caps; /* set PF behaviours */

drivers/net/wireless/ath/ath9k/htc_drv_debug.c

···
 	spin_lock_bh(&priv->tx.tx_lock);
 	len = scnprintf(buf, sizeof(buf),
 			"TX slot bitmap : %*pb\n"
-			"Used slots     : %d\n",
+			"Used slots     : %ld\n",
 			MAX_TX_BUF_NUM, priv->tx.tx_slot,
 			bitmap_weight(priv->tx.tx_slot, MAX_TX_BUF_NUM));
 	spin_unlock_bh(&priv->tx.tx_lock);

drivers/net/wireless/ath/carl9170/debug.c

···
 	ADD(buf, *len, bufsize, "jar: [%*pb]\n",
 	    ar->fw.mem_blocks, ar->mem_bitmap);
 
-	ADD(buf, *len, bufsize, "cookies: used:%3d / total:%3d, allocs:%d\n",
+	ADD(buf, *len, bufsize, "cookies: used:%3ld / total:%3d, allocs:%d\n",
 	    bitmap_weight(ar->mem_bitmap, ar->fw.mem_blocks),
 	    ar->fw.mem_blocks, atomic_read(&ar->mem_allocs));
 

include/linux/bitmap.h

···
 			 const unsigned long *bitmap2, unsigned int nbits);
 bool __bitmap_subset(const unsigned long *bitmap1,
 		     const unsigned long *bitmap2, unsigned int nbits);
-int __bitmap_weight(const unsigned long *bitmap, unsigned int nbits);
+unsigned long __bitmap_weight(const unsigned long *bitmap, unsigned int nbits);
 void __bitmap_set(unsigned long *map, unsigned int start, int len);
 void __bitmap_clear(unsigned long *map, unsigned int start, int len);
 
···
 	return find_first_zero_bit(src, nbits) == nbits;
 }
 
-static __always_inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
+static __always_inline
+unsigned long bitmap_weight(const unsigned long *src, unsigned int nbits)
 {
 	if (small_const_nbits(nbits))
 		return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));

lib/bitmap.c

···
 }
 EXPORT_SYMBOL(__bitmap_subset);
 
-int __bitmap_weight(const unsigned long *bitmap, unsigned int bits)
+unsigned long __bitmap_weight(const unsigned long *bitmap, unsigned int bits)
 {
-	unsigned int k, lim = bits/BITS_PER_LONG;
-	int w = 0;
+	unsigned long k, w = 0, lim = bits/BITS_PER_LONG;
 
 	for (k = 0; k < lim; k++)
 		w += hweight_long(bitmap[k]);

tools/include/linux/bitmap.h

···
 #define DECLARE_BITMAP(name,bits) \
 	unsigned long name[BITS_TO_LONGS(bits)]
 
-int __bitmap_weight(const unsigned long *bitmap, int bits);
+unsigned long __bitmap_weight(const unsigned long *bitmap, unsigned int bits);
 void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1,
 		 const unsigned long *bitmap2, int bits);
 bool __bitmap_and(unsigned long *dst, const unsigned long *bitmap1,
···
 	return find_first_zero_bit(src, nbits) == nbits;
 }
 
-static inline int bitmap_weight(const unsigned long *src, unsigned int nbits)
+static inline unsigned long bitmap_weight(const unsigned long *src, unsigned int nbits)
 {
 	if (small_const_nbits(nbits))
 		return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));

tools/lib/bitmap.c

···
  */
 #include <linux/bitmap.h>
 
-int __bitmap_weight(const unsigned long *bitmap, int bits)
+unsigned long __bitmap_weight(const unsigned long *bitmap, unsigned int bits)
 {
-	int k, w = 0, lim = bits/BITS_PER_LONG;
+	unsigned long k, w = 0, lim = bits/BITS_PER_LONG;
 
 	for (k = 0; k < lim; k++)
 		w += hweight_long(bitmap[k]);