On Wed, Oct 05, 2022 at 02:12:46PM -0500, Daniel Díaz wrote:
Hello!
On 05/10/22 06:31, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 5.4.217 release. There are 51 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Fri, 07 Oct 2022 11:31:56 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.217-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y and the diffstat can be found below.
thanks,
greg k-h
We are seeing a new warning on x86_64:
/builds/linux/arch/x86/entry/entry_64.S: Assembler messages: /builds/linux/arch/x86/entry/entry_64.S:1756: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x151: unsupported intra-function call x86_64-linux-gnu-ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' x86_64-linux-gnu-ld: warning: creating DT_TEXTREL in a PIE
You mean only the third line here with objtool complaining about unsupported intra-function call, right? The other warnings were likely there before.
This started happening after 984b78c4ecea49b0b4b5729a502b689a623fde27 ("x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n").
This is, in fact, introduced by the previous commit, 65e5a1959296e16a3566ff75e527f211f0bf5a26 ("x86/speculation: Change FILL_RETURN_BUFFER to work with objtool").
You see it once 984b78c4ecea is applied because your configs do not have CONFIG_RETPOLINE.
Notice that I note in 65e5a1959296 that intra-function validation is missing in objtool in 5.4, which is why you are seeing this warning.
Cascardo.
The following configurations are affected:
- x86_64, build
- gcc-8-allnoconfig-warnings
- gcc-8-tinyconfig-warnings
- gcc-8-x86_64_defconfig-warnings
- gcc-9-allnoconfig-warnings
- gcc-9-tinyconfig-warnings
- gcc-9-x86_64_defconfig-warnings
- gcc-10-allnoconfig-warnings
- gcc-10-defconfig-warnings
- gcc-10-tinyconfig-warnings
- gcc-11-allnoconfig-warnings
- gcc-11-defconfig-warnings
- gcc-11-lkftconfig-debug-kmemleak-warnings
- gcc-11-lkftconfig-debug-warnings
- gcc-11-lkftconfig-kasan-warnings
- gcc-11-lkftconfig-kselftest-kernel-warnings
- gcc-11-lkftconfig-kselftest-warnings
- gcc-11-lkftconfig-kunit-warnings
- gcc-11-lkftconfig-libgpiod-warnings
- gcc-11-lkftconfig-perf-warnings
- gcc-11-lkftconfig-rcutorture-warnings
- gcc-11-lkftconfig-warnings
- gcc-11-tinyconfig-warnings
- gcc-12-allnoconfig-warnings
- gcc-12-defconfig-warnings
- gcc-12-tinyconfig-warnings
- clang-11-allnoconfig-warnings
- clang-11-tinyconfig-warnings
- clang-11-x86_64_defconfig-warnings
- clang-12-allnoconfig-warnings
- clang-12-lkftconfig-warnings
- clang-12-tinyconfig-warnings
- clang-12-x86_64_defconfig-warnings
- clang-13-allnoconfig-warnings
- clang-13-lkftconfig-warnings
- clang-13-tinyconfig-warnings
- clang-13-x86_64_defconfig-warnings
- clang-14-allnoconfig-warnings
- clang-14-lkftconfig-kcsan-warnings
- clang-14-lkftconfig-warnings
- clang-14-tinyconfig-warnings
- clang-14-x86_64_defconfig-warnings
- clang-nightly-lkftconfig-warnings
- clang-nightly-tinyconfig-warnings
- clang-nightly-x86_64_defconfig-warnings
Greetings!
Daniel Díaz daniel.diaz@linaro.org