#include #include struct arm64_annotate { regex_t call_insn, jump_insn; }; static struct ins_ops *arm64__associate_instruction_ops(struct arch *arch, const char *name) { struct arm64_annotate *arm = arch->priv; struct ins_ops *ops; regmatch_t match[2]; if (!regexec(&arm->jump_insn, name, 2, match, 0)) ops = &jump_ops; else if (!regexec(&arm->call_insn, name, 2, match, 0)) ops = &call_ops; else if (!strcmp(name, "ret")) ops = &ret_ops; else return NULL; arch__associate_ins_ops(arch, name, ops); return ops; } static int arm64__annotate_init(struct arch *arch) { struct arm64_annotate *arm; int err; if (arch->initialized) return 0; arm = zalloc(sizeof(*arm)); if (!arm) return -1; /* bl, blr */ err = regcomp(&arm->call_insn, "^blr?$", REG_EXTENDED); if (err) goto out_free_arm; /* b, b.cond, br, cbz/cbnz, tbz/tbnz */ err = regcomp(&arm->jump_insn, "^[ct]?br?\\.?(cc|cs|eq|ge|gt|hi|le|ls|lt|mi|ne|pl)?n?z?$", REG_EXTENDED); if (err) goto out_free_call; arch->initialized = true; arch->priv = arm; arch->associate_instruction_ops = arm64__associate_instruction_ops; arch->objdump.comment_char = ';'; arch->objdump.skip_functions_char = '+'; return 0; out_free_call: regfree(&arm->call_insn); out_free_arm: free(arm); return -1; } ket-rx-pump-back net-next plumbingsTobias Klauser
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authorChristoph Hellwig <hch@lst.de>2017-02-05 18:10:35 +0100
committerJens Axboe <axboe@fb.com>2017-02-06 09:34:46 -0700
commiteeeefd41843218c55a8782a6920f044d9bf6207a (patch)
treec342eac46626e62745aa8e1a982626efca8b121d /drivers/usb/serial
parentc14024dbb156c8392908aaa822097d27c6af8ec8 (diff)
block: don't try Write Same from __blkdev_issue_zeroout
Write Same can return an error asynchronously if it turns out the underlying SCSI device does not support Write Same, which makes a proper fallback to other methods in __blkdev_issue_zeroout impossible. Thus only issue a Write Same from blkdev_issue_zeroout an don't try it at all from __blkdev_issue_zeroout as a non-invasive workaround. Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Junichi Nomura <j-nomura@ce.jp.nec.com> Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout") Tested-by: Junichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/usb/serial')