[dpdk-dev] [PATCH 1/2 v4] Fix compile issue with hugepage_sz in 32-bit system

[Michael Qiu <michael.qiu@intel.com>]

lib/librte_eal/linuxapp/eal/eal_memory.c:324:4: error: comparison
is always false due to limited range of data type [-Werror=type-limits]
    || (hugepage_sz == RTE_PGSIZE_16G)) {
    ^
cc1: all warnings being treated as errors

This was introuduced by commit b77b5639:
        mem: add huge page sizes for IBM Power

The root cause is that size_t is 32-bit in i686 platform,
but RTE_PGSIZE_16M and RTE_PGSIZE_16G are always 64-bit.

Force hugepage_sz to always 64-bit to avoid this issue.

Signed-off-by: Michael Qiu <michael.qiu@intel.com>
---
 v4 ---> v3
	Change hugepage_sz from size_t to uint64_t
	split second bugfix to another patch

 v3 ---> v2
	Change RTE_PGSIZE_16G from ULL to UL
	to keep all entries consistent

 V2 ---> v1
	Change two type entries to one, and
	leave RTE_PGSIZE_16G only valid for
	64-bit platform

 lib/librte_eal/common/eal_common_memory.c   | 2 +-
 lib/librte_eal/common/eal_internal_cfg.h    | 2 +-
 lib/librte_eal/common/include/rte_memory.h  | 2 +-
 lib/librte_eal/common/include/rte_memzone.h | 2 +-
 lib/librte_eal/linuxapp/eal/eal_memory.c    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/librte_eal/common/eal_common_memory.c b/lib/librte_eal/common/eal_common_memory.c
index 412b432..77830f8 100644
--- a/lib/librte_eal/common/eal_common_memory.c
+++ b/lib/librte_eal/common/eal_common_memory.c
@@ -96,7 +96,7 @@ rte_dump_physmem_layout(FILE *f)
 
 		fprintf(f, "Segment %u: phys:0x%"PRIx64", len:%zu, "
 		       "virt:%p, socket_id:%"PRId32", "
-		       "hugepage_sz:%zu, nchannel:%"PRIx32", "
+		       "hugepage_sz:%"PRIu64", nchannel:%"PRIx32", "
 		       "nrank:%"PRIx32"\n", i,
 		       mcfg->memseg[i].phys_addr,
 		       mcfg->memseg[i].len,
diff --git a/lib/librte_eal/common/eal_internal_cfg.h b/lib/librte_eal/common/eal_internal_cfg.h
index aac6abf..e2ecb0d 100644
--- a/lib/librte_eal/common/eal_internal_cfg.h
+++ b/lib/librte_eal/common/eal_internal_cfg.h
@@ -49,7 +49,7 @@
  * mount points of hugepages
  */
 struct hugepage_info {
-	size_t hugepage_sz;   /**< size of a huge page */
+	uint64_t hugepage_sz;   /**< size of a huge page */
 	const char *hugedir;    /**< dir where hugetlbfs is mounted */
 	uint32_t num_pages[RTE_MAX_NUMA_NODES];
 				/**< number of hugepages of that size on each socket */
diff --git a/lib/librte_eal/common/include/rte_memory.h b/lib/librte_eal/common/include/rte_memory.h
index 1990833..7f8103f 100644
--- a/lib/librte_eal/common/include/rte_memory.h
+++ b/lib/librte_eal/common/include/rte_memory.h
@@ -92,7 +92,7 @@ struct rte_memseg {
 	phys_addr_t ioremap_addr; /**< Real physical address inside the VM */
 #endif
 	size_t len;               /**< Length of the segment. */
-	size_t hugepage_sz;       /**< The pagesize of underlying memory */
+	uint64_t hugepage_sz;       /**< The pagesize of underlying memory */
 	int32_t socket_id;          /**< NUMA socket ID. */
 	uint32_t nchannel;          /**< Number of channels. */
 	uint32_t nrank;             /**< Number of ranks. */
diff --git a/lib/librte_eal/common/include/rte_memzone.h b/lib/librte_eal/common/include/rte_memzone.h
index 7d47bff..3006e81 100644
--- a/lib/librte_eal/common/include/rte_memzone.h
+++ b/lib/librte_eal/common/include/rte_memzone.h
@@ -83,7 +83,7 @@ struct rte_memzone {
 #endif
 	size_t len;                       /**< Length of the memzone. */
 
-	size_t hugepage_sz;               /**< The page size of underlying memory */
+	uint64_t hugepage_sz;               /**< The page size of underlying memory */
 
 	int32_t socket_id;                /**< NUMA socket ID. */
 
diff --git a/lib/librte_eal/linuxapp/eal/eal_memory.c b/lib/librte_eal/linuxapp/eal/eal_memory.c
index 700aba2..566a052 100644
--- a/lib/librte_eal/linuxapp/eal/eal_memory.c
+++ b/lib/librte_eal/linuxapp/eal/eal_memory.c
@@ -300,7 +300,7 @@ map_all_hugepages(struct hugepage_file *hugepg_tbl,
 #endif
 
 	for (i = 0; i < hpi->num_pages[0]; i++) {
-		size_t hugepage_sz = hpi->hugepage_sz;
+		uint64_t hugepage_sz = hpi->hugepage_sz;
 
 		if (orig) {
 			hugepg_tbl[i].file_id = i;
-- 
1.9.3