[PATCH v2 1/3] Doc: deprecated.rst: add strlcat()
Manuel Ebner <[email protected]>
| Newsgroups | org.kernel.vger.workflows,org.kernel.vger.linux-doc,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
add strlcat and alternatives Signed-off-by: Manuel Ebner <[email protected]> --- Documentation/process/deprecated.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/process/deprecated.rst b/Documentation/process/deprecated.rst index fed56864d036..06e802f4bbfd 100644 --- a/Documentation/process/deprecated.rst +++ b/Documentation/process/deprecated.rst @@ -153,6 +153,13 @@ used, and the destinations should be marked with the `__nonstring attribute to avoid future compiler warnings. For cases still needing NUL-padding, strtomem_pad() can be used. +strlcat() +--------- +strlcat() must re-scan the destination string from the beginning on each +call (O(n^2) behavior). Alternatives are seq_buf_puts() and seq_buf_printf(). +snprintf(), scnprintf() and sysfs_emit() are possible aswell, but the adoption +of the arguments needs to be taken care off. + strlcpy() --------- strlcpy() reads the entire source buffer first (since the return value -- 2.54.0