/* Copyright (C) 2006-2016 B.A.T.M.A.N. contributors: * * Simon Wunderlich, Marek Lindner * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . */ #ifndef _NET_BATMAN_ADV_BITARRAY_H_ #define _NET_BATMAN_ADV_BITARRAY_H_ #include "main.h" #include #include #include #include /** * batadv_test_bit - check if bit is set in the current window * * @seq_bits: pointer to the sequence number receive packet * @last_seqno: latest sequence number in seq_bits * @curr_seqno: sequence number to test for * * Return: true if the corresponding bit in the given seq_bits indicates true * and curr_seqno is within range of last_seqno. Otherwise returns false. */ static inline bool batadv_test_bit(const unsigned long *seq_bits, u32 last_seqno, u32 curr_seqno) { s32 diff; diff = last_seqno - curr_seqno; if (diff < 0 || diff >= BATADV_TQ_LOCAL_WINDOW_SIZE) return false; return test_bit(diff, seq_bits) != 0; } /* turn corresponding bit on, so we can remember that we got the packet */ static inline void batadv_set_bit(unsigned long *seq_bits, s32 n) { /* if too old, just drop it */ if (n < 0 || n >= BATADV_TQ_LOCAL_WINDOW_SIZE) return; set_bit(n, seq_bits); /* turn the position on */ } bool batadv_bit_get_packet(void *priv, unsigned long *seq_bits, s32 seq_num_diff, int set_mark); #endif /* _NET_BATMAN_ADV_BITARRAY_H_ */ c?id=161e6d44a5e2d3f85365cb717d60e363171b39e6'>commitdiff
path: root/drivers/usb/wusbcore/pal.c
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authorGabriel Krisman Bertazi <krisman@collabora.co.uk>2017-01-16 12:23:42 -0200
committerUlf Hansson <ulf.hansson@linaro.org>2017-01-31 11:26:49 +0100
commit161e6d44a5e2d3f85365cb717d60e363171b39e6 (patch)
tree5c8b730a137696ef979f05ceae869b6e0348794c /drivers/usb/wusbcore/pal.c
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
mmc: sdhci: Ignore unexpected CARD_INT interrupts
One of our kernelCI boxes hanged at boot because a faulty eSDHC device was triggering spurious CARD_INT interrupts for SD cards, causing CMD52 reads, which are not allowed for SD devices. This adds a sanity check to the interruption path, preventing that illegal command from getting sent if the CARD_INT interruption should be disabled. This quirk allows that particular machine to resume boot despite the faulty hardware, instead of getting hung dealing with thousands of mishandled interrupts. Suggested-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Cc: <stable@vger.kernel.org>
Diffstat (limited to 'drivers/usb/wusbcore/pal.c')