/* * linux/fs/adfs/dir_fplus.h * * Copyright (C) 1999 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * Structures of directories on the F+ format disk */ #define ADFS_FPLUS_NAME_LEN 255 #define BIGDIRSTARTNAME ('S' | 'B' << 8 | 'P' << 16 | 'r' << 24) #define BIGDIRENDNAME ('o' | 'v' << 8 | 'e' << 16 | 'n' << 24) struct adfs_bigdirheader { __u8 startmasseq; __u8 bigdirversion[3]; __le32 bigdirstartname; __le32 bigdirnamelen; __le32 bigdirsize; __le32 bigdirentries; __le32 bigdirnamesize; __le32 bigdirparent; char bigdirname[1]; }; struct adfs_bigdirentry { __le32 bigdirload; __le32 bigdirexec; __le32 bigdirlen; __le32 bigdirindaddr; __le32 bigdirattr; __le32 bigdirobnamelen; __le32 bigdirobnameptr; }; struct adfs_bigdirtail { __le32 bigdirendname; __u8 bigdirendmasseq; __u8 reserved[2]; __u8 bigdircheckbyte; }; emaclite-cleanup'>emaclite-cleanup net-next plumbingsTobias Klauser
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authorAlexey Brodkin <Alexey.Brodkin@synopsys.com>2017-01-27 15:24:43 +0300
committerDavid S. Miller <davem@davemloft.net>2017-01-29 18:15:18 -0500
commit0a764db103376cf69d04449b10688f3516cc0b88 (patch)
tree6789a5c06ce42be32e77d6b40c6eb9baca113650 /sound
parent1b1bc42c1692e9b62756323c675a44cb1a1f9dbd (diff)
stmmac: Discard masked flags in interrupt status register
DW GMAC databook says the following about bits in "Register 15 (Interrupt Mask Register)": --------------------------->8------------------------- When set, this bit __disables_the_assertion_of_the_interrupt_signal__ because of the setting of XXX bit in Register 14 (Interrupt Status Register). --------------------------->8------------------------- In fact even if we mask one bit in the mask register it doesn't prevent corresponding bit to appear in the status register, it only disables interrupt generation for corresponding event. But currently we expect a bit different behavior: status bits to be in sync with their masks, i.e. if mask for bit A is set in the mask register then bit A won't appear in the interrupt status register. This was proven to be incorrect assumption, see discussion here [1]. That misunderstanding causes unexpected behaviour of the GMAC, for example we were happy enough to just see bogus messages about link state changes. So from now on we'll be only checking bits that really may trigger an interrupt. [1] https://lkml.org/lkml/2016/11/3/413 Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Fabrice Gasnier <fabrice.gasnier@st.com> Cc: Joachim Eastwood <manabian@gmail.com> Cc: Phil Reid <preid@electromag.com.au> Cc: David Miller <davem@davemloft.net> Cc: Alexandre Torgue <alexandre.torgue@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'sound')