search for: __maybe_unused

...t virtio_device *vdev) drivers/net/virtio_net.c:1859:13: error: 'virtnet_freeze_down' defined but not used [-Werror=unused-function] static void virtnet_freeze_down(struct virtio_device *vdev) A more robust way to do this is to remove the #ifdef around the callers and instead mark them as __maybe_unused. The compiler will now just silently drop the unused code. Fixes: 4941d472bf95 ("virtio-net: do not reset during XDP set") Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/net/virtio_net.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers...

...t virtio_device *vdev) drivers/net/virtio_net.c:1859:13: error: 'virtnet_freeze_down' defined but not used [-Werror=unused-function] static void virtnet_freeze_down(struct virtio_device *vdev) A more robust way to do this is to remove the #ifdef around the callers and instead mark them as __maybe_unused. The compiler will now just silently drop the unused code. Fixes: 4941d472bf95 ("virtio-net: do not reset during XDP set") Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/net/virtio_net.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers...

...ates' defined but not used [-Werror=unused-function] static int hdmi_clk_enable_gates(struct hdmi_context *hdata) The problem is that the PM functions themselves are inside of an #ifdef, but some functions they call are not. This patch removes the #ifdef and instead marks the PM functions as __maybe_unused, which is a more reliable way to get it right. Signed-off-by: Arnd Bergmann <arnd at arndb.de> Fixes: 9be7e9898444 ("drm/exynos/hdmi: clock code re-factoring") --- drivers/gpu/drm/exynos/exynos_hdmi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/driver...

...- a/arch/x86/kernel/paravirt_patch_32.c +++ b/arch/x86/kernel/paravirt_patch_32.c @@ -34,14 +34,16 @@ extern bool pv_is_native_vcpu_is_preempted(void); unsigned native_patch(u8 type, void *ibuf, unsigned long addr, unsigned len) { - const unsigned char *start, *end; + const unsigned char *start __maybe_unused, *end __maybe_unused; unsigned ret; #define PATCH_SITE(ops, x) \ case PARAVIRT_PATCH(ops.x): \ start = start_##ops##_##x; \ end = end_##ops##_##x; \ - goto patch_site + \ + return paravirt_patch_insns(ibuf, len, start, end); + switch (type) { #ifdef CONFIG_PAR...

...- a/arch/x86/kernel/paravirt_patch_32.c +++ b/arch/x86/kernel/paravirt_patch_32.c @@ -34,14 +34,16 @@ extern bool pv_is_native_vcpu_is_preempted(void); unsigned native_patch(u8 type, void *ibuf, unsigned long addr, unsigned len) { - const unsigned char *start, *end; + const unsigned char *start __maybe_unused, *end __maybe_unused; unsigned ret; #define PATCH_SITE(ops, x) \ case PARAVIRT_PATCH(ops.x): \ start = start_##ops##_##x; \ end = end_##ops##_##x; \ - goto patch_site + \ + return paravirt_patch_insns(ibuf, len, start, end); + switch (type) { #ifdef CONFIG_PAR...

...alternates/LibreELEC.tv/build.LibreELEC-Generic.x86_64-9.0-devel-next/iptables-1.8.1/libiptc/libip6tc.c:30: /home/neil/projects/scratch/alternates/LibreELEC.tv/build.LibreELEC-Generic.x86_64-9.0-devel-next/linux-4.20-rc1/include/linux/compiler_types.h:199:2: warning: redundant redeclaration of '__maybe_unused' [-Wredundant-decls] __maybe_unused notrace ^~~~~~~~~~~~~~ /home/neil/projects/scratch/alternates/LibreELEC.tv/build.LibreELEC-Generic.x86_64-9.0-devel-next/iptables-1.8.1/libiptc/libiptc.c:268:8: note: in expansion of macro 'inline' static inline unsigned int ^~~~~~ /home/...

From: Joerg Roedel <jroedel at suse.de> Setup sev-es.c and include the code from the pre-decompression stage to also build it into the image of the running kernel. Temporarily add __maybe_unused annotations to avoid build warnings until the functions get used. Signed-off-by: Joerg Roedel <jroedel at suse.de> --- arch/x86/kernel/Makefile | 1 + arch/x86/kernel/sev-es-shared.c | 21 ++-- arch/x86/kernel/sev-es.c | 163 ++++++++++++++++++++++++++++++++ 3 files changed...

...gs, trapnr); } diff --git a/arch/x86/kernel/sev-es-shared.c b/arch/x86/kernel/sev-es-shared.c index 5703f9b17e70..3d2299fb5e3f 100644 --- a/arch/x86/kernel/sev-es-shared.c +++ b/arch/x86/kernel/sev-es-shared.c @@ -9,7 +9,7 @@ * and is included directly into both code-bases. */ -static void __maybe_unused sev_es_terminate(unsigned int reason) +static void sev_es_terminate(unsigned int reason) { u64 val = GHCB_SEV_TERMINATE; @@ -27,7 +27,7 @@ static void __maybe_unused sev_es_terminate(unsigned int reason) asm volatile("hlt\n" : : : "memory"); } -static bool __maybe_unu...

...addr, unsigned len) if (pv_is_native_vcpu_is_preempted()) { start = start_lock_vcpu_is_preempted; end = end_lock_vcpu_is_preempted; - goto patch_site; + + return paravirt_patch_insns(ibuf, len, start, end); } goto patch_default; #endif @@ -86,7 +87,6 @@ patch_default: __maybe_unused ret = paravirt_patch_default(type, ibuf, addr, len); break; -patch_site: ret = paravirt_patch_insns(ibuf, len, start, end); break; } -- 2.17.0.582.gccdcbd54c

...addr, unsigned len) if (pv_is_native_vcpu_is_preempted()) { start = start_lock_vcpu_is_preempted; end = end_lock_vcpu_is_preempted; - goto patch_site; + + return paravirt_patch_insns(ibuf, len, start, end); } goto patch_default; #endif @@ -86,7 +87,6 @@ patch_default: __maybe_unused ret = paravirt_patch_default(type, ibuf, addr, len); break; -patch_site: ret = paravirt_patch_insns(ibuf, len, start, end); break; } -- 2.17.0.582.gccdcbd54c

...32.c > +++ b/arch/x86/kernel/paravirt_patch_32.c > @@ -34,14 +34,16 @@ extern bool pv_is_native_vcpu_is_preempted(void); > > unsigned native_patch(u8 type, void *ibuf, unsigned long addr, unsigned len) > { > - const unsigned char *start, *end; > + const unsigned char *start __maybe_unused, *end __maybe_unused; > unsigned ret; > > #define PATCH_SITE(ops, x) \ > case PARAVIRT_PATCH(ops.x): \ > start = start_##ops##_##x; \ > end = end_##ops##_##x; \ > - goto patch_site > + \ > + return paravirt_patch_insns(ibuf, len, start,...

...n-kernel unwinder diff --git a/arch/x86/kernel/sev-es-shared.c b/arch/x86/kernel/sev-es-shared.c index 18619279a46f..aa77f2eb8d88 100644 --- a/arch/x86/kernel/sev-es-shared.c +++ b/arch/x86/kernel/sev-es-shared.c @@ -9,7 +9,7 @@ * and is included directly into both code-bases. */ -static void __maybe_unused sev_es_terminate(unsigned int reason) +static void sev_es_terminate(unsigned int reason) { u64 val = GHCB_SEV_TERMINATE; @@ -27,7 +27,7 @@ static void __maybe_unused sev_es_terminate(unsigned int reason) asm volatile("hlt\n" : : : "memory"); } -static bool __maybe_unu...

...an empty macro that does not evaluate its size argument, which in turn produces an unused-variable warning: drivers/vhost/vhost.c:1191:9: error: unused variable 's' [-Werror,-Wunused-variable] size_t s = vhost_has_feature(vq, VIRTIO_RING_F_EVENT_IDX) ? 2 : 0; Mark the variable as __maybe_unused to shut up that warning. Signed-off-by: Arnd Bergmann <arnd at arndb.de> --- drivers/vhost/vhost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index a2e5dc7716e2..5ace833de746 100644 --- a/drivers/vhost/vhost.c +++ b/driv...

A bugfix introduced a harmless warning: arch/x86/kernel/paravirt_patch_32.c: In function 'native_patch': arch/x86/kernel/paravirt_patch_32.c:71:1: error: label 'patch_default' defined but not used [-Werror=unused-label] This puts it in the same #ifdef as its caller. Fixes: 45dbea5f55c0 ("x86/paravirt: Fix native_patch()") Signed-off-by: Arnd Bergmann <arnd at

A bugfix introduced a harmless warning: arch/x86/kernel/paravirt_patch_32.c: In function 'native_patch': arch/x86/kernel/paravirt_patch_32.c:71:1: error: label 'patch_default' defined but not used [-Werror=unused-label] This puts it in the same #ifdef as its caller. Fixes: 45dbea5f55c0 ("x86/paravirt: Fix native_patch()") Signed-off-by: Arnd Bergmann <arnd at

...p, void *res, int size) -{ - __READ_ONCE_SIZE; -} - -#ifdef CONFIG_KASAN -/* - * We can't declare function 'inline' because __no_sanitize_address confilcts - * with inlining. Attempt to inline it may cause a build failure. - * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368 - * '__maybe_unused' allows us to avoid defined-but-not-used warnings. - */ -# define __no_kasan_or_inline __no_sanitize_address notrace __maybe_unused -#else -# define __no_kasan_or_inline __always_inline -#endif - -static __no_kasan_or_inline -void __read_once_size_nocheck(const volatile void *p, void *res, int...

I am attaching a clocksource driver for HyperV. Signed-off-by: K. Y. Srinivasan <ksrinivasan at novell.com> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: hyperv_clocksource.patch Url: http://lists.linux-foundation.org/pipermail/virtualization/attachments/20100405/80968881/attachment-0001.txt

I am attaching a clocksource driver for HyperV. Signed-off-by: K. Y. Srinivasan <ksrinivasan at novell.com> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: hyperv_clocksource.patch Url: http://lists.linux-foundation.org/pipermail/virtualization/attachments/20100405/80968881/attachment-0001.txt

...atch_32.c b/arch/x86/kernel/paravirt_patch_32.c index d33ef165b1f8..553acbbb4d32 100644 --- a/arch/x86/kernel/paravirt_patch_32.c +++ b/arch/x86/kernel/paravirt_patch_32.c @@ -68,7 +68,7 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf, #endif default: -patch_default: +patch_default: __maybe_unused ret = paravirt_patch_default(type, clobbers, ibuf, addr, len); break; diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c index f4fcf26c9fce..11aaf1eaa0e4 100644 --- a/arch/x86/kernel/paravirt_patch_64.c +++ b/arch/x86/kernel/paravirt_patch_64.c @@ -80,7 +...

...linux/reboot.h> +#include <linux/dmi.h> +#include <linux/pci.h> #include "logging.h" #include "osd.h" @@ -251,10 +253,36 @@ static void heartbeat_onchannelcallback( DPRINT_EXIT(VMBUS); } +static const struct pci_device_id __initconst +hv_utils_pci_table[] __maybe_unused = { + { PCI_DEVICE(0x1414, 0x5353) }, /* Hyper-V emulated VGA controller */ + { 0 } +}; +MODULE_DEVICE_TABLE(pci, hv_utils_pci_table); + + +static const struct dmi_system_id __initconst +hv_utils_dmi_table[] __maybe_unused = { + { + .ident = "Hyper-V", + .matches = { + DMI_MATCH(DMI_...