Hi, in an lkml discussion[1] it was mentioned that variable-length arrays should not be used. Few warnings were found[2] from wireless: drivers/net/wireless/ath/ath9k/dfs.c:104:2: warning: ISO C90 forbids variable length array 'max_bin' [-Wvla] drivers/net/wireless/rsi/rsi_91x_sdio.c:570:2: warning: ISO C90 forbids variable length array 'temp_buf' [-Wvla] Patches welcome. [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@xxxxxxxxxxxxxx [2] http://paste.ubuntu.com/p/srQxwPQS9s/ -- Kalle Valo