diff options
Diffstat (limited to 'arch/x86/net')
| -rw-r--r-- | arch/x86/net/bpf_jit_comp.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c index 7e90244c84e3..987514396c1e 100644 --- a/arch/x86/net/bpf_jit_comp.c +++ b/arch/x86/net/bpf_jit_comp.c @@ -24,7 +24,7 @@ extern u8 sk_load_byte_positive_offset[]; extern u8 sk_load_word_negative_offset[], sk_load_half_negative_offset[]; extern u8 sk_load_byte_negative_offset[]; -static inline u8 *emit_code(u8 *ptr, u32 bytes, unsigned int len) +static u8 *emit_code(u8 *ptr, u32 bytes, unsigned int len) { if (len == 1) *ptr = bytes; @@ -52,12 +52,12 @@ static inline u8 *emit_code(u8 *ptr, u32 bytes, unsigned int len) #define EMIT4_off32(b1, b2, b3, b4, off) \ do {EMIT4(b1, b2, b3, b4); EMIT(off, 4); } while (0) -static inline bool is_imm8(int value) +static bool is_imm8(int value) { return value <= 127 && value >= -128; } -static inline bool is_simm32(s64 value) +static bool is_simm32(s64 value) { return value == (s64) (s32) value; } @@ -94,7 +94,7 @@ static int bpf_size_to_x86_bytes(int bpf_size) #define X86_JGE 0x7D #define X86_JG 0x7F -static inline void bpf_flush_icache(void *start, void *end) +static void bpf_flush_icache(void *start, void *end) { mm_segment_t old_fs = get_fs(); @@ -133,24 +133,24 @@ static const int reg2hex[] = { * which need extra byte of encoding. * rax,rcx,...,rbp have simpler encoding */ -static inline bool is_ereg(u32 reg) +static bool is_ereg(u32 reg) { - if (reg == BPF_REG_5 || reg == AUX_REG || - (reg >= BPF_REG_7 && reg <= BPF_REG_9)) - return true; - else - return false; + return (1 << reg) & (BIT(BPF_REG_5) | + BIT(AUX_REG) | + BIT(BPF_REG_7) | + BIT(BPF_REG_8) | + BIT(BPF_REG_9)); } /* add modifiers if 'reg' maps to x64 registers r8..r15 */ -static inline u8 add_1mod(u8 byte, u32 reg) +static u8 add_1mod(u8 byte, u32 reg) { if (is_ereg(reg)) byte |= 1; return byte; } -static inline u8 add_2mod(u8 byte, u32 r1, u32 r2) +static u8 add_2mod(u8 byte, u32 r1, u32 r2) { if (is_ereg(r1)) byte |= 1; @@ -160,13 +160,13 @@ static inline u8 add_2mod(u8 byte, u32 r1, u32 r2) } /* encode 'dst_reg' register into x64 opcode 'byte' */ -static inline u8 add_1reg(u8 byte, u32 dst_reg) +static u8 add_1reg(u8 byte, u32 dst_reg) { return byte + reg2hex[dst_reg]; } /* encode 'dst_reg' and 'src_reg' registers into x64 opcode 'byte' */ -static inline u8 add_2reg(u8 byte, u32 dst_reg, u32 src_reg) +static u8 add_2reg(u8 byte, u32 dst_reg, u32 src_reg) { return byte + reg2hex[dst_reg] + (reg2hex[src_reg] << 3); } |