#ifndef LLC_IF_H #define LLC_IF_H /* * Copyright (c) 1997 by Procom Technology,Inc. * 2001 by Arnaldo Carvalho de Melo * * This program can be redistributed or modified under the terms of the * GNU General Public License as published by the Free Software Foundation. * This program is distributed without any warranty or implied warranty * of merchantability or fitness for a particular purpose. * * See the GNU General Public License for more details. */ /* Defines LLC interface to network layer */ /* Available primitives */ #include #include #include #include #include #define LLC_DATAUNIT_PRIM 1 #define LLC_CONN_PRIM 2 #define LLC_DATA_PRIM 3 #define LLC_DISC_PRIM 4 #define LLC_RESET_PRIM 5 #define LLC_FLOWCONTROL_PRIM 6 /* Not supported at this time */ #define LLC_DISABLE_PRIM 7 #define LLC_XID_PRIM 8 #define LLC_TEST_PRIM 9 #define LLC_SAP_ACTIVATION 10 #define LLC_SAP_DEACTIVATION 11 #define LLC_NBR_PRIMITIVES 11 #define LLC_IND 1 #define LLC_CONFIRM 2 /* Primitive type */ #define LLC_PRIM_TYPE_REQ 1 #define LLC_PRIM_TYPE_IND 2 #define LLC_PRIM_TYPE_RESP 3 #define LLC_PRIM_TYPE_CONFIRM 4 /* Reset reasons, remote entity or local LLC */ #define LLC_RESET_REASON_REMOTE 1 #define LLC_RESET_REASON_LOCAL 2 /* Disconnect reasons */ #define LLC_DISC_REASON_RX_DM_RSP_PDU 0 #define LLC_DISC_REASON_RX_DISC_CMD_PDU 1 #define LLC_DISC_REASON_ACK_TMR_EXP 2 /* Confirm reasons */ #define LLC_STATUS_CONN 0 /* connect confirm & reset confirm */ #define LLC_STATUS_DISC 1 /* connect confirm & reset confirm */ #define LLC_STATUS_FAILED 2 /* connect confirm & reset confirm */ #define LLC_STATUS_IMPOSSIBLE 3 /* connect confirm */ #define LLC_STATUS_RECEIVED 4 /* data conn */ #define LLC_STATUS_REMOTE_BUSY 5 /* data conn */ #define LLC_STATUS_REFUSE 6 /* data conn */ #define LLC_STATUS_CONFLICT 7 /* disconnect conn */ #define LLC_STATUS_RESET_DONE 8 /* */ int llc_establish_connection(struct sock *sk, u8 *lmac, u8 *dmac, u8 dsap); int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb); int llc_send_disc(struct sock *sk); #endif /* LLC_IF_H */ de/sound/cs4271.h?h=nds-private-remove&id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>diff
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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-02-01 17:45:02 +0000
committerIngo Molnar <mingo@kernel.org>2017-02-01 21:17:49 +0100
commitc8f325a59cfc718d13a50fbc746ed9b415c25e92 (patch)
treed53fbdac9d0781e39a13b2ac6b2bd258cf3b4140 /include/sound/cs4271.h
parentbf29bddf0417a4783da3b24e8c9e017ac649326f (diff)
efi/fdt: Avoid FDT manipulation after ExitBootServices()
Some AArch64 UEFI implementations disable the MMU in ExitBootServices(), after which unaligned accesses to RAM are no longer supported. Commit: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") fixed an issue in the memory map handling of the stub FDT code, but inadvertently created an issue with such firmware, by moving some of the FDT manipulation to after the invocation of ExitBootServices(). Given that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/sound/cs4271.h')