/* * thunks_32.S - assembly helpers for mixed-bitness code * Copyright (c) 2015 Denys Vlasenko * * This program is free software; you can redistribute it and/or modify * it under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope 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. * * These are little helpers that make it easier to switch bitness on * the fly. */ .text .code32 .global call64_from_32 .type call32_from_64, @function // 4(%esp): function to call call64_from_32: // Fetch function address mov 4(%esp), %eax // Save registers which are callee-clobbered by 64-bit ABI push %ecx push %edx push %esi push %edi // Switch to long mode jmp $0x33,$1f 1: .code64 // Call the function call *%rax // Switch to compatibility mode push $0x23 /* USER32_CS */ .code32; push $1f; .code64 /* hack: can't have X86_64_32S relocation in 32-bit ELF */ lretq 1: .code32 pop %edi pop %esi pop %edx pop %ecx ret .size call64_from_32, .-call64_from_32 net-next plumbingsTobias Klauser
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authorBhumika Goyal <bhumirks@gmail.com>2017-01-25 00:54:07 +0530
committerDan Williams <dan.j.williams@intel.com>2017-01-31 18:16:30 -0800
commit970d14e3989160ee9e97c7d75ecbc893fd29dab9 (patch)
tree4a731cac4efedb17f86a912ec56c151d26792abe /drivers/usb/c67x00/c67x00-hcd.h
parent7a308bb3016f57e5be11a677d15b821536419d36 (diff)
nvdimm: constify device_type structures
Declare device_type structure as const as it is only stored in the type field of a device structure. This field is of type const, so add const to declaration of device_type structure. File size before: text data bss dec hex filename 19278 3199 16 22493 57dd nvdimm/namespace_devs.o File size after: text data bss dec hex filename 19929 3160 16 23105 5a41 nvdimm/namespace_devs.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/usb/c67x00/c67x00-hcd.h')