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octeontx2: fix -Wnonnull warning
When compile testing this driver on a platform on which probe() is
known to fail at compile time, gcc warns about the cgx_lmactype_string[]
array being uninitialized:
In function 'strncpy',
inlined from 'link_status_user_format' at /git/arm-soc/drivers/net/ethernet/marvell/octeontx2/af/cgx.c:838:2,
inlined from 'cgx_link_change_handler' at /git/arm-soc/drivers/net/ethernet/marvell/octeontx2/af/cgx.c:853:2:
include/linux/fortify-string.h:27:30: error: argument 2 null where non-null expected [-Werror=nonnull]
27 | #define __underlying_strncpy __builtin_strncpy
Address this by turning the runtime initialization into a fixed array,
which should also produce better code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>