on arm64 defconfig build failed with gcc-8:
drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c:208:3:
include/linux/bitfield.h:195:3: error: call to '__field_overflow'
declared with attribute error: value doesn't fit into mask
__field_overflow(); \
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:215:2: note: in expansion of macro '____MAKE_OP'
____MAKE_OP(u##size,u##size,,)
^~~~~~~~~~~
include/linux/bitfield.h:218:1: note: in expansion of macro '__MAKE_OP'
__MAKE_OP(32)
Limit cb_size to valid range to fix it.
Signed-off-by: Pei Xiao <xiaopei01@xxxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c
index cb36baac14da..8437763dcf5a 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c
@@ -166,7 +166,7 @@ int iwl_pcie_ctxt_info_init(struct iwl_trans *trans,
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
struct iwl_context_info *ctxt_info;
struct iwl_context_info_rbd_cfg *rx_cfg;
- u32 control_flags = 0, rb_size;
+ u32 control_flags = 0, rb_size, cb_size;
dma_addr_t phys;
int ret;
@@ -202,11 +202,14 @@ int iwl_pcie_ctxt_info_init(struct iwl_trans *trans,
rb_size = IWL_CTXT_INFO_RB_SIZE_4K;
}
- WARN_ON(RX_QUEUE_CB_SIZE(iwl_trans_get_num_rbds(trans)) > 12);
+ cb_size = RX_QUEUE_CB_SIZE(iwl_trans_get_num_rbds(trans));
+ if (unlikely(cb_size > 12)) {
+ WARN_ON(1);
+ cb_size = 12;
+ }
+
control_flags = IWL_CTXT_INFO_TFD_FORMAT_LONG;
- control_flags |=
- u32_encode_bits(RX_QUEUE_CB_SIZE(iwl_trans_get_num_rbds(trans)),
- IWL_CTXT_INFO_RB_CB_SIZE);
+ control_flags |= u32_encode_bits(cb_size, IWL_CTXT_INFO_RB_CB_SIZE);
control_flags |= u32_encode_bits(rb_size, IWL_CTXT_INFO_RB_SIZE);
ctxt_info->control.control_flags = cpu_to_le32(control_flags);
--
2.25.1
