From a870544ca9d215449e91ebc01e35d80b23151c78 Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Wed, 22 Jun 2022 08:38:37 +0200 Subject: [PATCH] kernel: remove platform_has() infrastructure The only use case of the platform_has() infrastructure has been removed again, so remove the whole feature. Signed-off-by: Juergen Gross Tested-by: Oleksandr Tyshchenko # Arm64 guest using Xen Reviewed-by: Stefano Stabellini Link: https://lore.kernel.org/r/20220622063838.8854-3-jgross@suse.com Signed-off-by: Juergen Gross --- MAINTAINERS | 8 -------- include/asm-generic/Kbuild | 1 - include/asm-generic/platform-feature.h | 8 -------- include/linux/platform-feature.h | 15 --------------- kernel/Makefile | 2 +- kernel/platform-feature.c | 27 --------------------------- 6 files changed, 1 insertion(+), 60 deletions(-) delete mode 100644 include/asm-generic/platform-feature.h delete mode 100644 include/linux/platform-feature.h delete mode 100644 kernel/platform-feature.c diff --git a/MAINTAINERS b/MAINTAINERS index 64379c6..c173a58 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15953,14 +15953,6 @@ S: Maintained F: Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml F: drivers/iio/chemical/pms7003.c -PLATFORM FEATURE INFRASTRUCTURE -M: Juergen Gross -S: Maintained -F: arch/*/include/asm/platform-feature.h -F: include/asm-generic/platform-feature.h -F: include/linux/platform-feature.h -F: kernel/platform-feature.c - PLDMFW LIBRARY M: Jacob Keller S: Maintained diff --git a/include/asm-generic/Kbuild b/include/asm-generic/Kbuild index 8e47d48..302506b 100644 --- a/include/asm-generic/Kbuild +++ b/include/asm-generic/Kbuild @@ -44,7 +44,6 @@ mandatory-y += msi.h mandatory-y += pci.h mandatory-y += percpu.h mandatory-y += pgalloc.h -mandatory-y += platform-feature.h mandatory-y += preempt.h mandatory-y += rwonce.h mandatory-y += sections.h diff --git a/include/asm-generic/platform-feature.h b/include/asm-generic/platform-feature.h deleted file mode 100644 index 4b0af3d..0000000 --- a/include/asm-generic/platform-feature.h +++ /dev/null @@ -1,8 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_GENERIC_PLATFORM_FEATURE_H -#define _ASM_GENERIC_PLATFORM_FEATURE_H - -/* Number of arch specific feature flags. */ -#define PLATFORM_ARCH_FEAT_N 0 - -#endif /* _ASM_GENERIC_PLATFORM_FEATURE_H */ diff --git a/include/linux/platform-feature.h b/include/linux/platform-feature.h deleted file mode 100644 index 6ed8599..0000000 --- a/include/linux/platform-feature.h +++ /dev/null @@ -1,15 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _PLATFORM_FEATURE_H -#define _PLATFORM_FEATURE_H - -#include -#include - -/* The platform features are starting with the architecture specific ones. */ -#define PLATFORM_FEAT_N (0 + PLATFORM_ARCH_FEAT_N) - -void platform_set(unsigned int feature); -void platform_clear(unsigned int feature); -bool platform_has(unsigned int feature); - -#endif /* _PLATFORM_FEATURE_H */ diff --git a/kernel/Makefile b/kernel/Makefile index a7e1f49..318789c 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -7,7 +7,7 @@ obj-y = fork.o exec_domain.o panic.o \ cpu.o exit.o softirq.o resource.o \ sysctl.o capability.o ptrace.o user.o \ signal.o sys.o umh.o workqueue.o pid.o task_work.o \ - extable.o params.o platform-feature.o \ + extable.o params.o \ kthread.o sys_ni.o nsproxy.o \ notifier.o ksysfs.o cred.o reboot.o \ async.o range.o smpboot.o ucount.o regset.o diff --git a/kernel/platform-feature.c b/kernel/platform-feature.c deleted file mode 100644 index cb6a6c3..0000000 --- a/kernel/platform-feature.c +++ /dev/null @@ -1,27 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 - -#include -#include -#include -#include - -#define PLATFORM_FEAT_ARRAY_SZ BITS_TO_LONGS(PLATFORM_FEAT_N) -static unsigned long __read_mostly platform_features[PLATFORM_FEAT_ARRAY_SZ]; - -void platform_set(unsigned int feature) -{ - set_bit(feature, platform_features); -} -EXPORT_SYMBOL_GPL(platform_set); - -void platform_clear(unsigned int feature) -{ - clear_bit(feature, platform_features); -} -EXPORT_SYMBOL_GPL(platform_clear); - -bool platform_has(unsigned int feature) -{ - return test_bit(feature, platform_features); -} -EXPORT_SYMBOL_GPL(platform_has); -- 2.7.4