| Message ID | 1541484606-20813-2-git-send-email-smasetty@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/3] drm/msm: use kvmalloc for ring data in gpu crashstate | expand |
diff --git a/include/linux/ascii85.h b/include/linux/ascii85.h index 4cc4020..3665899 100644 --- a/include/linux/ascii85.h +++ b/include/linux/ascii85.h @@ -23,8 +23,12 @@ { int i; - if (in == 0) - return "z"; + if (in == 0) { + out[0] = 'z'; + out[1] = '\0'; + + return out; + } out[5] = '\0'; for (i = 5; i--; ) { @@ -35,4 +39,15 @@ return out; } +static inline size_t +ascii85_encode_to_buf(u32 in, char *out) +{ + ascii85_encode(in, out); + + if (in == 0) + return 1; + + return 5; +} + #endif
Add a new function which, in addition to ascii85 encoding to buffer also returns the length of the encoded string. The length return enables iteration over the output buffer space. This helps with efficient encoding of larger buffers, since we avoid an additional memcpy/scnprintf. Signed-off-by: Sharat Masetty <smasetty@codeaurora.org> --- include/linux/ascii85.h | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-)