[TCWG CI] Regression caused by linux: parisc: Declare pci_iounmap() parisc version only when CONFIG_PCI enabled: commit 9caea0007601d3bc6debec04f8b4cd6f4c2394be Author: Helge Deller deller@gmx.de

parisc: Declare pci_iounmap() parisc version only when CONFIG_PCI enabled

Results regressed to # reset_artifacts: -10 # build_abe binutils: -9 # build_llvm: -5 # build_abe qemu: -2 # linux_n_obj: 37 # First few build errors in logs:

from # reset_artifacts: -10 # build_abe binutils: -9 # build_llvm: -5 # build_abe qemu: -2 # linux_n_obj: 20151

THIS IS THE END OF INTERESTING STUFF. BELOW ARE LINKS TO BUILDS, REPRODUCTION INSTRUCTIONS, AND THE RAW COMMIT.

This commit has regressed these CI configurations: - tcwg_kernel/llvm-master-aarch64-mainline-allyesconfig

First_bad build: https://ci.linaro.org/job/tcwg_kernel-llvm-bisect-llvm-master-aarch64-mainli... Last_good build: https://ci.linaro.org/job/tcwg_kernel-llvm-bisect-llvm-master-aarch64-mainli... Baseline build: https://ci.linaro.org/job/tcwg_kernel-llvm-bisect-llvm-master-aarch64-mainli... Even more details: https://ci.linaro.org/job/tcwg_kernel-llvm-bisect-llvm-master-aarch64-mainli...

Reproduce builds: <cut> mkdir investigate-linux-9caea0007601d3bc6debec04f8b4cd6f4c2394be cd investigate-linux-9caea0007601d3bc6debec04f8b4cd6f4c2394be

# Fetch scripts git clone https://git.linaro.org/toolchain/jenkins-scripts

# Fetch manifests and test.sh script mkdir -p artifacts/manifests curl -o artifacts/manifests/build-baseline.sh https://ci.linaro.org/job/tcwg_kernel-llvm-bisect-llvm-master-aarch64-mainli... --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_kernel-llvm-bisect-llvm-master-aarch64-mainli... --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_kernel-llvm-bisect-llvm-master-aarch64-mainli... --fail chmod +x artifacts/test.sh

# Reproduce the baseline build (build all pre-requisites) ./jenkins-scripts/tcwg_kernel-build.sh @@ artifacts/manifests/build-baseline.sh

# Save baseline build state (which is then restored in artifacts/test.sh) mkdir -p ./bisect rsync -a --del --delete-excluded --exclude /bisect/ --exclude /artifacts/ --exclude /linux/ ./ ./bisect/baseline/

cd linux

# Reproduce first_bad build git checkout --detach 9caea0007601d3bc6debec04f8b4cd6f4c2394be ../artifacts/test.sh

# Reproduce last_good build git checkout --detach 31ad37bd6faf871c070650f72ac9488ceeeceeb0 ../artifacts/test.sh

cd .. </cut>

Full commit (up to 1000 lines): <cut> commit 9caea0007601d3bc6debec04f8b4cd6f4c2394be Author: Helge Deller deller@gmx.de Date: Sun Sep 19 10:36:09 2021 -0700

parisc: Declare pci_iounmap() parisc version only when CONFIG_PCI enabled

Linus noticed odd declaration rules for pci_iounmap() in iomap.h and pci_iomap.h, where it dependend on either NO_GENERIC_PCI_IOPORT_MAP or GENERIC_IOMAP when CONFIG_PCI was disabled.

Testing on parisc seems to indicate that we need pci_iounmap() only when CONFIG_PCI is enabled, so the declaration of pci_iounmap() can be moved cleanly into pci_iomap.h in sync with the declarations of pci_iomap().

Link: https://lore.kernel.org/all/CAHk-=wjRrh98pZoQ+AzfWmsTZacWxTJKXZ9eKU2X_0+jM=O... Signed-off-by: Helge Deller deller@gmx.de Suggested-by: Linus Torvalds torvalds@linux-foundation.org Fixes: 97a29d59fc22 ("[PARISC] fix compile break caused by iomap: make IOPORT/PCI mapping functions conditional") Cc: Arnd Bergmann arnd@arndb.de Cc: Guenter Roeck linux@roeck-us.net Cc: Ulrich Teichert krypton@ulrich-teichert.org Cc: James Bottomley James.Bottomley@hansenpartnership.com Signed-off-by: Linus Torvalds torvalds@linux-foundation.org --- arch/parisc/lib/iomap.c | 4 +++- include/asm-generic/iomap.h | 10 ---------- include/asm-generic/pci_iomap.h | 3 +++ 3 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c index f03adb1999e7..367f6397bda7 100644 --- a/arch/parisc/lib/iomap.c +++ b/arch/parisc/lib/iomap.c @@ -513,12 +513,15 @@ void ioport_unmap(void __iomem *addr) } }

+#ifdef CONFIG_PCI void pci_iounmap(struct pci_dev *dev, void __iomem * addr) { if (!INDIRECT_ADDR(addr)) { iounmap(addr); } } +EXPORT_SYMBOL(pci_iounmap); +#endif

EXPORT_SYMBOL(ioread8); EXPORT_SYMBOL(ioread16); @@ -544,4 +547,3 @@ EXPORT_SYMBOL(iowrite16_rep); EXPORT_SYMBOL(iowrite32_rep); EXPORT_SYMBOL(ioport_map); EXPORT_SYMBOL(ioport_unmap); -EXPORT_SYMBOL(pci_iounmap); diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h index 9b3eb6d86200..08237ae8b840 100644 --- a/include/asm-generic/iomap.h +++ b/include/asm-generic/iomap.h @@ -110,16 +110,6 @@ static inline void __iomem *ioremap_np(phys_addr_t offset, size_t size) } #endif

-#ifdef CONFIG_PCI -/* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */ -struct pci_dev; -extern void pci_iounmap(struct pci_dev *dev, void __iomem *); -#elif defined(CONFIG_GENERIC_IOMAP) -struct pci_dev; -static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) -{ } -#endif - #include <asm-generic/pci_iomap.h>

#endif diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h index df636c6d8e6c..5a2f9bf53384 100644 --- a/include/asm-generic/pci_iomap.h +++ b/include/asm-generic/pci_iomap.h @@ -18,6 +18,7 @@ extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, extern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, unsigned long offset, unsigned long maxlen); +extern void pci_iounmap(struct pci_dev *dev, void __iomem *); /* Create a virtual mapping cookie for a port on a given PCI device. * Do not call this directly, it exists to make it easier for architectures * to override */ @@ -50,6 +51,8 @@ static inline void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, { return NULL; } +static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) +{ } #endif

#endif /* __ASM_GENERIC_PCI_IOMAP_H */ </cut>