The following build warnings / errors noticed with arm64 defconfig and x86 allyesconfig with clang-20 and clang-nightly toolchains.
Regression Analysis: - New regression? yes - Reproducibility? yes
Build regression: next-20250819 sdhci-cadence.c error variable 'hrs37_mode' is uninitialized when used here [-Werror,-Wuninitialized]
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
## Build log drivers/mmc/host/sdhci-cadence.c:297:9: error: variable 'hrs37_mode' is uninitialized when used here [-Werror,-Wuninitialized] 297 | writel(hrs37_mode, hrs37_reg); | ^~~~~~~~~~ drivers/mmc/host/sdhci-cadence.c:291:16: note: initialize the variable 'hrs37_mode' to silence this warning 291 | u32 hrs37_mode; | ^ | = 0
## Source * Kernel version: 6.17.0-rc2 * Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git * Git describe: next-20250819 * Git commit: 3ac864c2d9bb8608ee236e89bf561811613abfce * Architectures: arm64 x86 * Toolchains: clang-20 * Kconfigs: defconfig and allyesconfig
## Build * Build log: https://qa-reports.linaro.org/api/testruns/29595553/log_file/ * Build details x86: https://regressions.linaro.org/lkft/linux-next-master/next-20250819/log-pars... * Build details arm64: https://regressions.linaro.org/lkft/linux-next-master/next-20250819/log-pars... * Build plan: https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/builds/31UgO4773u... * Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/31UgO4773uaneRjyDrf41... * Kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/31UgO4773uaneRjyDrf41...
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