#ifndef __NET_GUE_H #define __NET_GUE_H /* Definitions for the GUE header, standard and private flags, lengths * of optional fields are below. * * Diagram of GUE header: * * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |Ver|C| Hlen | Proto/ctype | Standard flags |P| * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | | * ~ Fields (optional) ~ * | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Private flags (optional, P bit is set) | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | | * ~ Private fields (optional) ~ * | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * C bit indicates contol message when set, data message when unset. * For a control message, proto/ctype is interpreted as a type of * control message. For data messages, proto/ctype is the IP protocol * of the next header. * * P bit indicates private flags field is present. The private flags * may refer to options placed after this field. */ struct guehdr { union { struct { #if defined(__LITTLE_ENDIAN_BITFIELD) __u8 hlen:5, control:1, version:2; #elif defined (__BIG_ENDIAN_BITFIELD) __u8 version:2, control:1, hlen:5; #else #error "Please fix " #endif __u8 proto_ctype; __u16 flags; }; __u32 word; }; }; /* Standard flags in GUE header */ #define GUE_FLAG_PRIV htons(1<<0) /* Private flags are in options */ #define GUE_LEN_PRIV 4 #define GUE_FLAGS_ALL (GUE_FLAG_PRIV) /* Private flags in the private option extension */ #define GUE_PFLAG_REMCSUM htonl(1 << 31) #define GUE_PLEN_REMCSUM 4 #define GUE_PFLAGS_ALL (GUE_PFLAG_REMCSUM) /* Functions to compute options length corresponding to flags. * If we ever have a lot of flags this can be potentially be * converted to a more optimized algorithm (table lookup * for instance). */ static inline size_t guehdr_flags_len(__be16 flags) { return ((flags & GUE_FLAG_PRIV) ? GUE_LEN_PRIV : 0); } static inline size_t guehdr_priv_flags_len(__be32 flags) { return 0; } /* Validate standard and private flags. Returns non-zero (meaning invalid) * if there is an unknown standard or private flags, or the options length for * the flags exceeds the options length specific in hlen of the GUE header. */ static inline int validate_gue_flags(struct guehdr *guehdr, size_t optlen) { size_t len; __be32 flags = guehdr->flags; if (flags & ~GUE_FLAGS_ALL) return 1; len = guehdr_flags_len(flags); if (len > optlen) return 1; if (flags & GUE_FLAG_PRIV) { /* Private flags are last four bytes accounted in * guehdr_flags_len */ flags = *(__be32 *)((void *)&guehdr[1] + len - GUE_LEN_PRIV); if (flags & ~GUE_PFLAGS_ALL) return 1; len += guehdr_priv_flags_len(flags); if (len > optlen) return 1; } return 0; } #endif /tools/power?h=nds-private-remove&id=52f5631a4c056ad01682393be56d2be237e81610'>power/cpupower/README
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authorJurij Smakov <jurij@wooyd.org>2017-01-30 15:41:36 -0600
committerKalle Valo <kvalo@codeaurora.org>2017-01-31 09:05:25 +0200
commit52f5631a4c056ad01682393be56d2be237e81610 (patch)
tree53d1ddd2c1b179c808df10b6ce731ad26aa9f31b /tools/power/cpupower/README
parent2b1d530cb3157f828fcaadd259613f59db3c6d1c (diff)
rtlwifi: rtl8192ce: Fix loading of incorrect firmware
In commit cf4747d7535a ("rtlwifi: Fix regression caused by commit d86e64768859, an error in the edit results in the wrong firmware being loaded for some models of the RTL8188/8192CE. In this condition, the connection suffered from high ping latency, slow transfer rates, and required higher signal strengths to work at all See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=853073, https://bugzilla.opensuse.org/show_bug.cgi?id=1017471, and https://github.com/lwfinger/rtlwifi_new/issues/203 for descriptions of the problems. This patch fixes all of those problems. Fixes: cf4747d7535a ("rtlwifi: Fix regression caused by commit d86e64768859") Signed-off-by: Jurij Smakov <jurij@wooyd.org> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> # 4.9+ Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'tools/power/cpupower/README')