commit 6cd5a80275614105ccf8794465b6ba5c0c5e8f3f Author: Andreas Stieger astieger@suse.com Date: Sun May 28 23:49:31 2017 +0200
Fix GCC 7 -Wimplicit-fallthrough warnings
Add magic comments recognized by default -Wimplicit-fallthrough=3 or break, as required. --- src/ext/csiphash.c | 14 +++++++------- src/ext/ed25519/donna/modm-donna-64bit.h | 24 ++++++++++++------------ src/or/buffers.c | 1 + src/or/connection_edge.c | 1 + src/or/dns.c | 1 + src/or/relay.c | 1 + 6 files changed, 23 insertions(+), 19 deletions(-)
diff --git a/src/ext/csiphash.c b/src/ext/csiphash.c index b60f73a7f..49a6dc477 100644 --- a/src/ext/csiphash.c +++ b/src/ext/csiphash.c @@ -122,13 +122,13 @@ uint64_t siphash24(const void *src, unsigned long src_sz, const struct sipkey *k }
switch (src_sz - blocks) { - case 7: last7 |= (uint64_t)m[i + 6] << 48; - case 6: last7 |= (uint64_t)m[i + 5] << 40; - case 5: last7 |= (uint64_t)m[i + 4] << 32; - case 4: last7 |= (uint64_t)m[i + 3] << 24; - case 3: last7 |= (uint64_t)m[i + 2] << 16; - case 2: last7 |= (uint64_t)m[i + 1] << 8; - case 1: last7 |= (uint64_t)m[i + 0] ; + case 7: last7 |= (uint64_t)m[i + 6] << 48; /* Falls through. */ + case 6: last7 |= (uint64_t)m[i + 5] << 40; /* Falls through. */ + case 5: last7 |= (uint64_t)m[i + 4] << 32; /* Falls through. */ + case 4: last7 |= (uint64_t)m[i + 3] << 24; /* Falls through. */ + case 3: last7 |= (uint64_t)m[i + 2] << 16; /* Falls through. */ + case 2: last7 |= (uint64_t)m[i + 1] << 8; /* Falls through. */ + case 1: last7 |= (uint64_t)m[i + 0] ; /* Falls through. */ case 0: default:; } diff --git a/src/ext/ed25519/donna/modm-donna-64bit.h b/src/ext/ed25519/donna/modm-donna-64bit.h index 012ea9ea0..06c98e303 100644 --- a/src/ext/ed25519/donna/modm-donna-64bit.h +++ b/src/ext/ed25519/donna/modm-donna-64bit.h @@ -294,10 +294,10 @@ sub256_modm_batch(bignum256modm out, const bignum256modm a, const bignum256modm size_t i = 0; bignum256modm_element_t carry = 0; switch (limbsize) { - case 4: out[i] = (a[i] - b[i]) ; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++; - case 3: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++; - case 2: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++; - case 1: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++; + case 4: out[i] = (a[i] - b[i]) ; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++; /* Falls through. */ + case 3: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++; /* Falls through. */ + case 2: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++; /* Falls through. */ + case 1: out[i] = (a[i] - b[i]) - carry; carry = (out[i] >> 63); out[i] &= 0xffffffffffffff; i++; /* Falls through. */ case 0: default: out[i] = (a[i] - b[i]) - carry; } @@ -310,10 +310,10 @@ lt256_modm_batch(const bignum256modm a, const bignum256modm b, size_t limbsize) size_t i = 0; bignum256modm_element_t t, carry = 0; switch (limbsize) { - case 4: t = (a[i] - b[i]) ; carry = (t >> 63); i++; - case 3: t = (a[i] - b[i]) - carry; carry = (t >> 63); i++; - case 2: t = (a[i] - b[i]) - carry; carry = (t >> 63); i++; - case 1: t = (a[i] - b[i]) - carry; carry = (t >> 63); i++; + case 4: t = (a[i] - b[i]) ; carry = (t >> 63); i++; /* Falls through. */ + case 3: t = (a[i] - b[i]) - carry; carry = (t >> 63); i++; /* Falls through. */ + case 2: t = (a[i] - b[i]) - carry; carry = (t >> 63); i++; /* Falls through. */ + case 1: t = (a[i] - b[i]) - carry; carry = (t >> 63); i++; /* Falls through. */ case 0: t = (a[i] - b[i]) - carry; carry = (t >> 63); } return (int)carry; @@ -325,10 +325,10 @@ lte256_modm_batch(const bignum256modm a, const bignum256modm b, size_t limbsize) size_t i = 0; bignum256modm_element_t t, carry = 0; switch (limbsize) { - case 4: t = (b[i] - a[i]) ; carry = (t >> 63); i++; - case 3: t = (b[i] - a[i]) - carry; carry = (t >> 63); i++; - case 2: t = (b[i] - a[i]) - carry; carry = (t >> 63); i++; - case 1: t = (b[i] - a[i]) - carry; carry = (t >> 63); i++; + case 4: t = (b[i] - a[i]) ; carry = (t >> 63); i++; /* Falls through. */ + case 3: t = (b[i] - a[i]) - carry; carry = (t >> 63); i++; /* Falls through. */ + case 2: t = (b[i] - a[i]) - carry; carry = (t >> 63); i++; /* Falls through. */ + case 1: t = (b[i] - a[i]) - carry; carry = (t >> 63); i++; /* Falls through. */ case 0: t = (b[i] - a[i]) - carry; carry = (t >> 63); } return (int)!carry; diff --git a/src/or/buffers.c b/src/or/buffers.c index 8981fd283..89382d1d8 100644 --- a/src/or/buffers.c +++ b/src/or/buffers.c @@ -1595,6 +1595,7 @@ parse_socks(const char *data, size_t datalen, socks_request_t *req, return -1; } tor_assert(0); + break; case 4: { /* socks4 */ enum {socks4, socks4a} socks4_prot = socks4a; const char *authstart, *authend; diff --git a/src/or/connection_edge.c b/src/or/connection_edge.c index 53ade173d..12fe2f57c 100644 --- a/src/or/connection_edge.c +++ b/src/or/connection_edge.c @@ -260,6 +260,7 @@ connection_edge_process_inbuf(edge_connection_t *conn, int package_partial) } /* Fall through if the connection is on a circuit without optimistic * data support. */ + /* Falls through. */ case EXIT_CONN_STATE_CONNECTING: case AP_CONN_STATE_RENDDESC_WAIT: case AP_CONN_STATE_CIRCUIT_WAIT: diff --git a/src/or/dns.c b/src/or/dns.c index e007a402f..0ad4c0f50 100644 --- a/src/or/dns.c +++ b/src/or/dns.c @@ -522,6 +522,7 @@ send_resolved_cell,(edge_connection_t *conn, uint8_t answer_type, answer_type = RESOLVED_TYPE_ERROR; /* fall through. */ } + /* Falls through. */ case RESOLVED_TYPE_ERROR_TRANSIENT: case RESOLVED_TYPE_ERROR: { diff --git a/src/or/relay.c b/src/or/relay.c index 4e9dadba1..882877ade 100644 --- a/src/or/relay.c +++ b/src/or/relay.c @@ -859,6 +859,7 @@ connection_ap_process_end_not_open( break; /* break means it'll close, below */ /* Else fall through: expire this circuit, clear the * chosen_exit_name field, and try again. */ + /* Falls through. */ case END_STREAM_REASON_RESOLVEFAILED: case END_STREAM_REASON_TIMEOUT: case END_STREAM_REASON_MISC: