kernel/git/stable/linux.git/Makefile, branch linux-6.9.y

Linux 6.9.12

2024-07-27T09:36:19+00:00

Link: https://lore.kernel.org/r/20240725142731.678993846@linuxfoundation.org Tested-by: Justin M. Forbes Tested-by: Peter Schneider Tested-by: SeongJae Park Tested-by: Markus Reichelt Tested-by: Ron Economos Tested-by: Mark Brown Tested-by: Shuah Khan Tested-by: Jon Hunter Tested-by: Linux Kernel Functional Testing Tested-by: Florian Fainelli Signed-off-by: Greg Kroah-Hartman

Linux 6.9.11

2024-07-25T07:53:42+00:00

Link: https://lore.kernel.org/r/20240723180143.461739294@linuxfoundation.org Tested-by: Ronald Warsow Tested-by: Florian Fainelli Tested-by: Pavel Machek (CIP) Tested-by: Jon Hunter Tested-by: Conor Dooley Tested-by: Mark Brown Tested-by: Peter Schneider Tested-by: Shuah Khan Tested-by: Justin M. Forbes Tested-by: Linux Kernel Functional Testing Tested-by: Ron Economos Signed-off-by: Greg Kroah-Hartman

Linux 6.9.10

2024-07-18T11:22:56+00:00

Link: https://lore.kernel.org/r/20240716152755.980289992@linuxfoundation.org Tested-by: SeongJae Park Tested-by: Markus Reichelt Tested-by: Florian Fainelli Tested-by: Pavel Machek (CIP) Tested-by: Ronald Warsow Tested-by: Shuah Khan Tested-by: Allen Pais Link: https://lore.kernel.org/r/20240717063806.741977243@linuxfoundation.org Tested-by: Salvatore Bonaccorso Tested-by: Pavel Machek (CIP) Tested-by: Ronald Warsow Tested-by: Peter Schneider Tested-by: Linux Kernel Functional Testing Tested-by: Mark Brown Tested-by: Ron Economos Tested-by: Kelsey Steele Tested-by: Florian Fainelli Tested-by: Jon Hunter Signed-off-by: Greg Kroah-Hartman

Linux 6.9.9

2024-07-11T10:51:24+00:00

Link: https://lore.kernel.org/r/20240709110708.903245467@linuxfoundation.org Tested-by: Ronald Warsow Tested-by: SeongJae Park Tested-by: Markus Reichelt Tested-by: Pavel Machek (CIP) Tested-by: Kelsey Steele Tested-by: Shuah Khan Tested-by: Peter Schneider Tested-by: Bagas Sanjaya Tested-by: Salvatore Bonaccorso Tested-by: Jon Hunter Tested-by: Christian Heusel Tested-by: Pascal Ernster Tested-by: Ron Economos Link: https://lore.kernel.org/r/2024071118-iguana-pureblood-03be@gregkh Signed-off-by: Greg Kroah-Hartman

Linux 6.9.8

2024-07-05T07:38:21+00:00

Link: https://lore.kernel.org/r/20240702170243.963426416@linuxfoundation.org Tested-by: Ronald Warsow Tested-by: SeongJae Park Tested-by: Mark Brown Tested-by: Christian Heusel Tested-by: Shuah Khan Tested-by: Bagas Sanjaya Tested-by: Jon Hunter Tested-by: Salvatore Bonaccorso Tested-by: Justin M. Forbes Tested-by: Pavel Machek (CIP) Tested-by: Peter Schneider Tested-by: Kelsey Steele Tested-by: Ron Economos Tested-by: Linux Kernel Functional Testing Tested-by: Florian Fainelli Signed-off-by: Greg Kroah-Hartman

Linux 6.9.7

2024-06-27T11:52:32+00:00

Link: https://lore.kernel.org/r/20240625085548.033507125@linuxfoundation.org Tested-by: Florian Fainelli Tested-by: Peter Schneider Tested-by: Ronald Warsow Tested-by: SeongJae Park Tested-by: Mark Brown Tested-by: Shuah Khan Tested-by: Justin M. Forbes Tested-by: Bagas Sanjaya Tested-by: Jon Hunter Tested-by: Christian Heusel Tested-by: Salvatore Bonaccorso Tested-by: Allen Pais Tested-by: Ron Economos Tested-by: Linux Kernel Functional Testing Tested-by: Kelsey Steele Signed-off-by: Greg Kroah-Hartman

Linux 6.9.6

2024-06-21T12:40:40+00:00

Link: https://lore.kernel.org/r/20240619125609.836313103@linuxfoundation.org Tested-by: Florian Fainelli Tested-by: Ronald Warsow Tested-by: SeongJae Park Tested-by: Jon Hunter Tested-by: Pavel Machek (CIP) Tested-by: Allen Pais Tested-by: Kelsey Steele Tested-by: Bagas Sanjaya Tested-by: Peter Schneider Tested-by: Salvatore Bonaccorso Tested-by: Mark Brown Tested-by: Ron Economos Tested-by: Shuah Khan Signed-off-by: Greg Kroah-Hartman

Linux 6.9.5

2024-06-16T11:51:16+00:00

Link: https://lore.kernel.org/r/20240613113227.389465891@linuxfoundation.org Tested-by: Ronald Warsow Tested-by: SeongJae Park Tested-by: Bagas Sanjaya Tested-by: Linux Kernel Functional Testing Tested-by: Pavel Machek (CIP) Tested-by: Ron Economos Tested-by: Mark Brown Tested-by: Jon Hunter Tested-by: Peter Schneider Tested-by: Shuah Khan Signed-off-by: Greg Kroah-Hartman

kbuild: Remove support for Clang's ThinLTO caching

2024-06-16T11:51:04+00:00

commit aba091547ef6159d52471f42a3ef531b7b660ed8 upstream. There is an issue in clang's ThinLTO caching (enabled for the kernel via '--thinlto-cache-dir') with .incbin, which the kernel occasionally uses to include data within the kernel, such as the .config file for /proc/config.gz. For example, when changing the .config and rebuilding vmlinux, the copy of .config in vmlinux does not match the copy of .config in the build folder: $ echo 'CONFIG_LTO_NONE=n CONFIG_LTO_CLANG_THIN=y CONFIG_IKCONFIG=y CONFIG_HEADERS_INSTALL=y' >kernel/configs/repro.config $ make -skj"$(nproc)" ARCH=x86_64 LLVM=1 clean defconfig repro.config vmlinux ... $ grep CONFIG_HEADERS_INSTALL .config CONFIG_HEADERS_INSTALL=y $ scripts/extract-ikconfig vmlinux | grep CONFIG_HEADERS_INSTALL CONFIG_HEADERS_INSTALL=y $ scripts/config -d HEADERS_INSTALL $ make -kj"$(nproc)" ARCH=x86_64 LLVM=1 vmlinux ... UPD kernel/config_data GZIP kernel/config_data.gz CC kernel/configs.o ... LD vmlinux ... $ grep CONFIG_HEADERS_INSTALL .config # CONFIG_HEADERS_INSTALL is not set $ scripts/extract-ikconfig vmlinux | grep CONFIG_HEADERS_INSTALL CONFIG_HEADERS_INSTALL=y Without '--thinlto-cache-dir' or when using full LTO, this issue does not occur. Benchmarking incremental builds on a few different machines with and without the cache shows a 20% increase in incremental build time without the cache when measured by touching init/main.c and running 'make all'. ARCH=arm64 defconfig + CONFIG_LTO_CLANG_THIN=y on an arm64 host: Benchmark 1: With ThinLTO cache Time (mean ± σ): 56.347 s ± 0.163 s [User: 83.768 s, System: 24.661 s] Range (min … max): 56.109 s … 56.594 s 10 runs Benchmark 2: Without ThinLTO cache Time (mean ± σ): 67.740 s ± 0.479 s [User: 718.458 s, System: 31.797 s] Range (min … max): 67.059 s … 68.556 s 10 runs Summary With ThinLTO cache ran 1.20 ± 0.01 times faster than Without ThinLTO cache ARCH=x86_64 defconfig + CONFIG_LTO_CLANG_THIN=y on an x86_64 host: Benchmark 1: With ThinLTO cache Time (mean ± σ): 85.772 s ± 0.252 s [User: 91.505 s, System: 8.408 s] Range (min … max): 85.447 s … 86.244 s 10 runs Benchmark 2: Without ThinLTO cache Time (mean ± σ): 103.833 s ± 0.288 s [User: 232.058 s, System: 8.569 s] Range (min … max): 103.286 s … 104.124 s 10 runs Summary With ThinLTO cache ran 1.21 ± 0.00 times faster than Without ThinLTO cache While it is unfortunate to take this performance improvement off the table, correctness is more important. If/when this is fixed in LLVM, it can potentially be brought back in a conditional manner. Alternatively, a developer can just disable LTO if doing incremental compiles quickly is important, as a full compile cycle can still take over a minute even with the cache and it is unlikely that LTO will result in functional differences for a kernel change. Cc: stable@vger.kernel.org Fixes: dc5723b02e52 ("kbuild: add support for Clang LTO") Reported-by: Yifan Hong Closes: https://github.com/ClangBuiltLinux/linux/issues/2021 Reported-by: Masami Hiramatsu Closes: https://lore.kernel.org/r/20220327115526.cc4b0ff55fc53c97683c3e4d@kernel.org/ Signed-off-by: Nathan Chancellor Signed-off-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman

Linux 6.9.4

2024-06-12T09:39:59+00:00

Link: https://lore.kernel.org/r/20240606131651.683718371@linuxfoundation.org Tested-by: Ronald Warsow Tested-by: SeongJae Park Tested-by: Pavel Machek (CIP) Tested-by: Shuah Khan Tested-by: Bagas Sanjaya Tested-by: Jon Hunter Tested-by: Mark Brown Tested-by: Allen Pais Tested-by: Pascal Ernster Tested-by: Ron Economos Tested-by: Peter Schneider Link: https://lore.kernel.org/r/20240609113803.338372290@linuxfoundation.org Tested-by: Ronald Warsow Tested-by: SeongJae Park Tested-by: Bagas Sanjaya Tested-by: Mark Brown Tested-by: Jon Hunter Tested-by: Linux Kernel Functional Testing Tested-by: Kelsey Steele Signed-off-by: Greg Kroah-Hartman