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SubjectRe: [PATCH] arch/um: compile with modern headers
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Jason,

Am Mittwoch, 13. Dezember 2017, 18:22:30 CET schrieb Jason A. Donenfeld:
> Recent libcs have gotten a bit more strict, so we actually need to
> include the right headers and use the right types. This enables UML to
> compile again.
>
> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
> Cc: stable@vger.kernel.org
> ---
> arch/um/os-Linux/file.c | 1 +
> arch/um/os-Linux/signal.c | 3 ++-
> arch/x86/um/stub_segv.c | 3 ++-
> 3 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
> index 2db18cbbb0ea..c0197097c86e 100644
> --- a/arch/um/os-Linux/file.c
> +++ b/arch/um/os-Linux/file.c
> @@ -12,6 +12,7 @@
> #include <sys/mount.h>
> #include <sys/socket.h>
> #include <sys/stat.h>
> +#include <sys/sysmacros.h>
> #include <sys/un.h>
> #include <sys/types.h>
> #include <os.h>
> diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
> index a86d7cc2c2d8..bf0acb8aad8b 100644
> --- a/arch/um/os-Linux/signal.c
> +++ b/arch/um/os-Linux/signal.c
> @@ -16,6 +16,7 @@
> #include <os.h>
> #include <sysdep/mcontext.h>
> #include <um_malloc.h>
> +#include <sys/ucontext.h>
>
> void (*sig_info[NSIG])(int, struct siginfo *, struct uml_pt_regs *) = {
> [SIGTRAP] = relay_signal,
> @@ -159,7 +160,7 @@ static void (*handlers[_NSIG])(int sig, struct siginfo
> *si, mcontext_t *mc) = {
>
> static void hard_handler(int sig, siginfo_t *si, void *p)
> {
> - struct ucontext *uc = p;
> + ucontext_t *uc = p;
> mcontext_t *mc = &uc->uc_mcontext;
> unsigned long pending = 1UL << sig;
>
> diff --git a/arch/x86/um/stub_segv.c b/arch/x86/um/stub_segv.c
> index 1518d2805ae8..27361cbb7ca9 100644
> --- a/arch/x86/um/stub_segv.c
> +++ b/arch/x86/um/stub_segv.c
> @@ -6,11 +6,12 @@
> #include <sysdep/stub.h>
> #include <sysdep/faultinfo.h>
> #include <sysdep/mcontext.h>
> +#include <sys/ucontext.h>
>
> void __attribute__ ((__section__ (".__syscall_stub")))
> stub_segv_handler(int sig, siginfo_t *info, void *p)
> {
> - struct ucontext *uc = p;
> + ucontext_t *uc = p;
>
> GET_FAULTINFO_FROM_MC(*((struct faultinfo *) STUB_DATA),
> &uc->uc_mcontext);

Can you please rebase your fix on linux-next?
I have already a very similar fix in the pipe.

Thanks,
//richard

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