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Hyeonggon Yoo 6e8e04291d mm/zsmalloc: add __maybe_unused attribute for is_first_zpdesc() 
Commit c1b3bb73d5 ("mm/zsmalloc: use zpdesc in
trylock_zspage()/lock_zspage()") introduces is_first_zpdesc() function. 
However, the function is only used when CONFIG_DEBUG_VM=y.

When building with LLVM=1 and W=1 option, the following warning is
generated:
  $ make -j12 W=1 LLVM=1 mm/zsmalloc.o
  mm/zsmalloc.c:455:20: error: function 'is_first_zpdesc' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration]
    455 | static inline bool is_first_zpdesc(struct zpdesc *zpdesc)
        |                    ^~~~~~~~~~~~~~~
  1 error generated.

Fix the warning by adding __maybe_unused attribute to the function.
No functional change intended.

Link: https://lkml.kernel.org/r/20250127231631.4363-1-42.hyeyoo@gmail.com
Fixes: c1b3bb73d5 ("mm/zsmalloc: use zpdesc in trylock_zspage()/lock_zspage()")
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501240958.4ILzuBrH-lkp@intel.com/
Cc: Alex Shi <alexs@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-02-01 03:53:23 -08:00
arch s390 fixes for 6.14 merge window 2025-01-30 10:53:49 -08:00
block Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
certs
crypto treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
Documentation Two fixes for footnote-related warnings that appeared with Sphinx 8.x. 2025-01-30 10:57:19 -08:00
drivers more s390 updates for 6.14 merge window 2025-01-30 10:48:17 -08:00
fs Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
include mm/vmscan: fix hard LOCKUP in function isolate_lru_folios 2025-02-01 03:53:23 -08:00
init treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
io_uring treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
ipc treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
kernel Summary: 2025-01-29 10:35:40 -08:00
lib CRC fixes for 6.14 2025-01-29 10:50:28 -08:00
LICENSES
mm mm/zsmalloc: add __maybe_unused attribute for is_first_zpdesc() 2025-02-01 03:53:23 -08:00
net NFS Client Updates for Linux 6.14 2025-01-28 14:23:46 -08:00
rust Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
samples Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
scripts Char/Misc/IIO driver updates for 6.14-rc1 2025-01-27 16:51:51 -08:00
security treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
sound Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
tools gpio fixes for v6.14-rc1 2025-01-30 10:19:30 -08:00
usr
virt Merge branch 'kvm-mirror-page-tables' into HEAD 2025-01-20 07:15:58 -05:00
.clang-format
.clippy.toml
.cocciconfig
.editorconfig
.get_maintainer.ignore
.gitattributes
.gitignore rust: use host dylib naming convention to support macOS 2025-01-10 01:01:24 +01:00
.mailmap Mainly individually changelogged singleton patches. The patch series in 2025-01-26 17:50:53 -08:00
.rustfmt.toml
COPYING
CREDITS Mainly individually changelogged singleton patches. The patch series in 2025-01-26 17:50:53 -08:00
Kbuild
Kconfig
MAINTAINERS phy-for-6.14 2025-01-29 14:32:38 -08:00
Makefile Networking changes for 6.14. 2025-01-22 08:28:57 -08:00
README

README 

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.