resource_size_t may be 32-bit wide on some architectures, which causes
this warning when building the NTB code:
drivers/ntb/ntb_transport.c: In function 'ntb_transport_link_work':
drivers/ntb/ntb_transport.c:828:46: warning: right shift count >= width of type
[-Wshift-count-overflow]
The warning is harmless but can be avoided by using the upper_32_bits()
macro.
Signed-off-by: Arnd Bergmann <a...@arndb.de>
Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers")
---
Found while building ARM allmodconfig
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 6e3ee907d186..700f3ae833c2 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -825,10 +825,10 @@ static void ntb_transport_link_work(struct work_struct
*work)
size = max_mw_size;
spad = MW0_SZ_HIGH + (i * 2);
- ntb_peer_spad_write(ndev, spad, (u32)(size >> 32));
+ ntb_peer_spad_write(ndev, spad, upper_32_bits(size));
spad = MW0_SZ_LOW + (i * 2);
- ntb_peer_spad_write(ndev, spad, (u32)size);
+ ntb_peer_spad_write(ndev, spad, lower_32_bits(size));
}
ntb_peer_spad_write(ndev, NUM_MWS, nt->mw_count);
--
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