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Recently I noticed that both gcc-14 and clang-18 report that passing
a non-string literal as the format argument of alloc_workqueue()
is potentially insecure.
E.g. clang-18 says:
.../qaic_drv.c:61:23: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
61 | wq = alloc_workqueue(fmt, WQ_UNBOUND, 0);
| ^~~
.../qaic_drv.c:61:23: note: treat the string as an argument to avoid this
61 | wq = alloc_workqueue(fmt, WQ_UNBOUND, 0);
| ^
| "%s",
It is always the case where the contents of fmt is safe to pass as the
format argument. That is, in my understanding, it never contains any
format escape sequences.
But, it seems better to be safe than sorry. And, as a bonus, compiler
output becomes less verbose by addressing this issue as suggested by
clang-18.
Also, change the name of the parameter of qaicm_wq_init from
fmt to name to better reflect it's purpose.
Compile tested only.
Signed-off-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Tested-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241011-string-thing-v1-3-acc506568033@kernel.org
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.