verbs: Make integer conversions explicit

Make integer conversions explicit to silent
the following warnings/errors:

./build/include/infiniband/verbs.h: In function ‘__ibv_reg_mr’:
./build/include/infiniband/verbs.h:2550:53: \
 error: conversion to ‘int’ from ‘unsigned int’
 may change the sign of the result [-Werror=sign-conversion]
 2550 | return ibv_reg_mr(pd, addr, length, access);
      |                                     ^~~~~~
./build/include/infiniband/verbs.h: In function ‘__ibv_reg_mr_iova’:
./build/include/infiniband/verbs.h:2573:64:
 error: conversion to ‘int’ from ‘unsigned int’
 may change the sign of the result [-Werror=sign-conversion]
 2573 | return ibv_reg_mr_iova(pd, addr, length, iova, access);
      |                                                ^~~~~~
./build/include/infiniband/verbs.h: In function ‘ibv_create_srq_ex’:
./build/include/infiniband/verbs.h:2935:20:
 error: unsigned conversion from ‘int’ to ‘uint32_t’
 {aka ‘unsigned int’} changes value from ‘-4’ to ‘4294967292’
 [-Werror=sign-conversion]
 2935 | if (!(mask & ~(IBV_SRQ_INIT_ATTR_PD | IBV_SRQ_INIT_ATTR_TYPE)) &&
      |            ^
cc1: all warnings being treated as errors

Signed-off-by: Lukasz Dorau <[email protected]>

libibverbs/verbs.h

@@ -2547,7 +2547,7 @@ __ibv_reg_mr(struct ibv_pd *pd, void *addr, size_t length, unsigned int access,
  int is_access_const)
 {
  if (is_access_const && (access & IBV_ACCESS_OPTIONAL_RANGE) == 0)
- return ibv_reg_mr(pd, addr, length, access);
+ return ibv_reg_mr(pd, addr, length, (int)access);
  else
  return ibv_reg_mr_iova2(pd, addr, length, (uintptr_t)addr,
  access);
@@ -2570,7 +2570,7 @@ __ibv_reg_mr_iova(struct ibv_pd *pd, void *addr, size_t length, uint64_t iova,
  unsigned int access, int is_access_const)
 {
  if (is_access_const && (access & IBV_ACCESS_OPTIONAL_RANGE) == 0)
- return ibv_reg_mr_iova(pd, addr, length, iova, access);
+ return ibv_reg_mr_iova(pd, addr, length, iova, (int)access);
  else
  return ibv_reg_mr_iova2(pd, addr, length, iova, access);
 }
@@ -2932,7 +2932,7 @@ ibv_create_srq_ex(struct ibv_context *context,
  struct verbs_context *vctx;
  uint32_t mask = srq_init_attr_ex->comp_mask;
 
- if (!(mask & ~(IBV_SRQ_INIT_ATTR_PD | IBV_SRQ_INIT_ATTR_TYPE)) &&
+ if (!(mask & ~(uint32_t)(IBV_SRQ_INIT_ATTR_PD | IBV_SRQ_INIT_ATTR_TYPE)) &&
  (mask & IBV_SRQ_INIT_ATTR_PD) &&
  (!(mask & IBV_SRQ_INIT_ATTR_TYPE) ||
  (srq_init_attr_ex->srq_type == IBV_SRQT_BASIC)))