xnu-3248.40.184.tar.gz

[apple/xnu.git] / bsd / netinet / in_cksum.c

diff --git a/bsd/netinet/in_cksum.c b/bsd/netinet/in_cksum.c
index 4e6d453cf434cd64cc2353f53d6a80cfb19a3129..bc302ae30e799d4b08f3ddbc197691f1aeaef390 100644 (file)
--- a/bsd/netinet/in_cksum.c
+++ b/bsd/netinet/in_cksum.c
@@ -117,7 +117,7 @@ in_cksumdata(const void *buf, int mlen)
 {
        uint32_t sum, partial;
        unsigned int final_acc;
-       uint8_t *data = (void *)buf;
+       const uint8_t *data = (const uint8_t *)buf;
        boolean_t needs_swap, started_on_odd;
 
        VERIFY(mlen >= 0);
@@ -142,22 +142,22 @@ in_cksumdata(const void *buf, int mlen)
        needs_swap = started_on_odd;
        while (mlen >= 32) {
                __builtin_prefetch(data + 32);
-               partial += *(uint16_t *)(void *)data;
-               partial += *(uint16_t *)(void *)(data + 2);
-               partial += *(uint16_t *)(void *)(data + 4);
-               partial += *(uint16_t *)(void *)(data + 6);
-               partial += *(uint16_t *)(void *)(data + 8);
-               partial += *(uint16_t *)(void *)(data + 10);
-               partial += *(uint16_t *)(void *)(data + 12);
-               partial += *(uint16_t *)(void *)(data + 14);
-               partial += *(uint16_t *)(void *)(data + 16);
-               partial += *(uint16_t *)(void *)(data + 18);
-               partial += *(uint16_t *)(void *)(data + 20);
-               partial += *(uint16_t *)(void *)(data + 22);
-               partial += *(uint16_t *)(void *)(data + 24);
-               partial += *(uint16_t *)(void *)(data + 26);
-               partial += *(uint16_t *)(void *)(data + 28);
-               partial += *(uint16_t *)(void *)(data + 30);
+               partial += *(const uint16_t *)(const void *)data;
+               partial += *(const uint16_t *)(const void *)(data + 2);
+               partial += *(const uint16_t *)(const void *)(data + 4);
+               partial += *(const uint16_t *)(const void *)(data + 6);
+               partial += *(const uint16_t *)(const void *)(data + 8);
+               partial += *(const uint16_t *)(const void *)(data + 10);
+               partial += *(const uint16_t *)(const void *)(data + 12);
+               partial += *(const uint16_t *)(const void *)(data + 14);
+               partial += *(const uint16_t *)(const void *)(data + 16);
+               partial += *(const uint16_t *)(const void *)(data + 18);
+               partial += *(const uint16_t *)(const void *)(data + 20);
+               partial += *(const uint16_t *)(const void *)(data + 22);
+               partial += *(const uint16_t *)(const void *)(data + 24);
+               partial += *(const uint16_t *)(const void *)(data + 26);
+               partial += *(const uint16_t *)(const void *)(data + 28);
+               partial += *(const uint16_t *)(const void *)(data + 30);
                data += 32;
                mlen -= 32;
                if (PREDICT_FALSE(partial & 0xc0000000)) {
@@ -170,14 +170,14 @@ in_cksumdata(const void *buf, int mlen)
                }
        }
        if (mlen & 16) {
-               partial += *(uint16_t *)(void *)data;
-               partial += *(uint16_t *)(void *)(data + 2);
-               partial += *(uint16_t *)(void *)(data + 4);
-               partial += *(uint16_t *)(void *)(data + 6);
-               partial += *(uint16_t *)(void *)(data + 8);
-               partial += *(uint16_t *)(void *)(data + 10);
-               partial += *(uint16_t *)(void *)(data + 12);
-               partial += *(uint16_t *)(void *)(data + 14);
+               partial += *(const uint16_t *)(const void *)data;
+               partial += *(const uint16_t *)(const void *)(data + 2);
+               partial += *(const uint16_t *)(const void *)(data + 4);
+               partial += *(const uint16_t *)(const void *)(data + 6);
+               partial += *(const uint16_t *)(const void *)(data + 8);
+               partial += *(const uint16_t *)(const void *)(data + 10);
+               partial += *(const uint16_t *)(const void *)(data + 12);
+               partial += *(const uint16_t *)(const void *)(data + 14);
                data += 16;
                mlen -= 16;
        }
@@ -186,19 +186,19 @@ in_cksumdata(const void *buf, int mlen)
         * are using bit masks, which are not affected.
         */
        if (mlen & 8) {
-               partial += *(uint16_t *)(void *)data;
-               partial += *(uint16_t *)(void *)(data + 2);
-               partial += *(uint16_t *)(void *)(data + 4);
-               partial += *(uint16_t *)(void *)(data + 6);
+               partial += *(const uint16_t *)(const void *)data;
+               partial += *(const uint16_t *)(const void *)(data + 2);
+               partial += *(const uint16_t *)(const void *)(data + 4);
+               partial += *(const uint16_t *)(const void *)(data + 6);
                data += 8;
        }
        if (mlen & 4) {
-               partial += *(uint16_t *)(void *)data;
-               partial += *(uint16_t *)(void *)(data + 2);
+               partial += *(const uint16_t *)(const void *)data;
+               partial += *(const uint16_t *)(const void *)(data + 2);
                data += 4;
        }
        if (mlen & 2) {
-               partial += *(uint16_t *)(void *)data;
+               partial += *(const uint16_t *)(const void *)data;
                data += 2;
        }
        if (mlen & 1) {
@@ -228,7 +228,7 @@ in_cksumdata(const void *buf, int mlen)
 {
        uint64_t sum, partial;
        unsigned int final_acc;
-       uint8_t *data = (void *)buf;
+       const uint8_t *data = (const uint8_t *)buf;
        boolean_t needs_swap, started_on_odd;
 
        VERIFY(mlen >= 0);
@@ -254,29 +254,29 @@ in_cksumdata(const void *buf, int mlen)
        if ((uintptr_t)data & 2) {
                if (mlen < 2)
                        goto trailing_bytes;
-               partial += *(uint16_t *)(void *)data;
+               partial += *(const uint16_t *)(const void *)data;
                data += 2;
                mlen -= 2;
        }
        while (mlen >= 64) {
                __builtin_prefetch(data + 32);
                __builtin_prefetch(data + 64);
-               partial += *(uint32_t *)(void *)data;
-               partial += *(uint32_t *)(void *)(data + 4);
-               partial += *(uint32_t *)(void *)(data + 8);
-               partial += *(uint32_t *)(void *)(data + 12);
-               partial += *(uint32_t *)(void *)(data + 16);
-               partial += *(uint32_t *)(void *)(data + 20);
-               partial += *(uint32_t *)(void *)(data + 24);
-               partial += *(uint32_t *)(void *)(data + 28);
-               partial += *(uint32_t *)(void *)(data + 32);
-               partial += *(uint32_t *)(void *)(data + 36);
-               partial += *(uint32_t *)(void *)(data + 40);
-               partial += *(uint32_t *)(void *)(data + 44);
-               partial += *(uint32_t *)(void *)(data + 48);
-               partial += *(uint32_t *)(void *)(data + 52);
-               partial += *(uint32_t *)(void *)(data + 56);
-               partial += *(uint32_t *)(void *)(data + 60);
+               partial += *(const uint32_t *)(const void *)data;
+               partial += *(const uint32_t *)(const void *)(data + 4);
+               partial += *(const uint32_t *)(const void *)(data + 8);
+               partial += *(const uint32_t *)(const void *)(data + 12);
+               partial += *(const uint32_t *)(const void *)(data + 16);
+               partial += *(const uint32_t *)(const void *)(data + 20);
+               partial += *(const uint32_t *)(const void *)(data + 24);
+               partial += *(const uint32_t *)(const void *)(data + 28);
+               partial += *(const uint32_t *)(const void *)(data + 32);
+               partial += *(const uint32_t *)(const void *)(data + 36);
+               partial += *(const uint32_t *)(const void *)(data + 40);
+               partial += *(const uint32_t *)(const void *)(data + 44);
+               partial += *(const uint32_t *)(const void *)(data + 48);
+               partial += *(const uint32_t *)(const void *)(data + 52);
+               partial += *(const uint32_t *)(const void *)(data + 56);
+               partial += *(const uint32_t *)(const void *)(data + 60);
                data += 64;
                mlen -= 64;
                if (PREDICT_FALSE(partial & (3ULL << 62))) {
@@ -293,34 +293,34 @@ in_cksumdata(const void *buf, int mlen)
         * are using bit masks, which are not affected.
         */
        if (mlen & 32) {
-               partial += *(uint32_t *)(void *)data;
-               partial += *(uint32_t *)(void *)(data + 4);
-               partial += *(uint32_t *)(void *)(data + 8);
-               partial += *(uint32_t *)(void *)(data + 12);
-               partial += *(uint32_t *)(void *)(data + 16);
-               partial += *(uint32_t *)(void *)(data + 20);
-               partial += *(uint32_t *)(void *)(data + 24);
-               partial += *(uint32_t *)(void *)(data + 28);
+               partial += *(const uint32_t *)(const void *)data;
+               partial += *(const uint32_t *)(const void *)(data + 4);
+               partial += *(const uint32_t *)(const void *)(data + 8);
+               partial += *(const uint32_t *)(const void *)(data + 12);
+               partial += *(const uint32_t *)(const void *)(data + 16);
+               partial += *(const uint32_t *)(const void *)(data + 20);
+               partial += *(const uint32_t *)(const void *)(data + 24);
+               partial += *(const uint32_t *)(const void *)(data + 28);
                data += 32;
        }
        if (mlen & 16) {
-               partial += *(uint32_t *)(void *)data;
-               partial += *(uint32_t *)(void *)(data + 4);
-               partial += *(uint32_t *)(void *)(data + 8);
-               partial += *(uint32_t *)(void *)(data + 12);
+               partial += *(const uint32_t *)(const void *)data;
+               partial += *(const uint32_t *)(const void *)(data + 4);
+               partial += *(const uint32_t *)(const void *)(data + 8);
+               partial += *(const uint32_t *)(const void *)(data + 12);
                data += 16;
        }
        if (mlen & 8) {
-               partial += *(uint32_t *)(void *)data;
-               partial += *(uint32_t *)(void *)(data + 4);
+               partial += *(const uint32_t *)(const void *)data;
+               partial += *(const uint32_t *)(const void *)(data + 4);
                data += 8;
        }
        if (mlen & 4) {
-               partial += *(uint32_t *)(void *)data;
+               partial += *(const uint32_t *)(const void *)data;
                data += 4;
        }
        if (mlen & 2) {
-               partial += *(uint16_t *)(void *)data;
+               partial += *(const uint16_t *)(const void *)data;
                data += 2;
        }
 trailing_bytes: