diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/lib/csumpartial.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/lib/csumpartial.S b/arch/arm/lib/csumpartial.S index cb5e3708f118..fe797cf320bb 100644 --- a/arch/arm/lib/csumpartial.S +++ b/arch/arm/lib/csumpartial.S | |||
| @@ -39,6 +39,7 @@ td3 .req lr | |||
| 39 | 39 | ||
| 40 | /* we must have at least one byte. */ | 40 | /* we must have at least one byte. */ |
| 41 | tst buf, #1 @ odd address? | 41 | tst buf, #1 @ odd address? |
| 42 | movne sum, sum, ror #8 | ||
| 42 | ldrneb td0, [buf], #1 | 43 | ldrneb td0, [buf], #1 |
| 43 | subne len, len, #1 | 44 | subne len, len, #1 |
| 44 | adcnes sum, sum, td0, put_byte_1 | 45 | adcnes sum, sum, td0, put_byte_1 |
| @@ -103,6 +104,9 @@ ENTRY(csum_partial) | |||
| 103 | cmp len, #8 @ Ensure that we have at least | 104 | cmp len, #8 @ Ensure that we have at least |
| 104 | blo .less8 @ 8 bytes to copy. | 105 | blo .less8 @ 8 bytes to copy. |
| 105 | 106 | ||
| 107 | tst buf, #1 | ||
| 108 | movne sum, sum, ror #8 | ||
| 109 | |||
| 106 | adds sum, sum, #0 @ C = 0 | 110 | adds sum, sum, #0 @ C = 0 |
| 107 | tst buf, #3 @ Test destination alignment | 111 | tst buf, #3 @ Test destination alignment |
| 108 | blne .not_aligned @ aligh destination, return here | 112 | blne .not_aligned @ aligh destination, return here |