LKML Archive on lore.kernel.org
 help / color / Atom feed
From: ebiederm@xmission.com (Eric W. Biederman)
To: Marco Elver <elver@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Florian Weimer <fweimer@redhat.com>,
	"David S. Miller" <davem@davemloft.net>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Collingbourne <pcc@google.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	Alexander Potapenko <glider@google.com>,
	sparclinux <sparclinux@vger.kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linux API <linux-api@vger.kernel.org>,
	kasan-dev <kasan-dev@googlegroups.com>
Subject: Re: [PATCH 10/12] signal: Redefine signinfo so 64bit fields are possible
Date: Mon, 03 May 2021 16:04:05 -0500
Message-ID: <m1o8drfs1m.fsf@fess.ebiederm.org> (raw)
In-Reply-To: <20210503203814.25487-10-ebiederm@xmission.com> (Eric W. Beiderman's message of "Mon, 3 May 2021 15:38:12 -0500")

"Eric W. Beiderman" <ebiederm@xmission.com> writes:

> From: "Eric W. Biederman" <ebiederm@xmission.com>
>
> The si_perf code really wants to add a u64 field.  This change enables
> that by reorganizing the definition of siginfo_t, so that a 64bit
> field can be added without increasing the alignment of other fields.

I decided to include this change because it is not that complicated,
and it allows si_perf_data to have the definition that was originally
desired.

If this looks difficult to make in the userspace definitions,
or is otherwise a problem I don't mind dropping this change.  I just
figured since it was not too difficult and we are changing things
anyway I should try for everything.

Eric


> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
> ---
>  arch/x86/kernel/signal_compat.c    |  9 +++----
>  include/linux/compat.h             | 28 +++++++++++++-------
>  include/uapi/asm-generic/siginfo.h | 42 ++++++++++++++++++++----------
>  3 files changed, 49 insertions(+), 30 deletions(-)
>
> diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c
> index a9fcabd8a5e5..a5cd01c52dfb 100644
> --- a/arch/x86/kernel/signal_compat.c
> +++ b/arch/x86/kernel/signal_compat.c
> @@ -17,8 +17,6 @@
>   */
>  static inline void signal_compat_build_tests(void)
>  {
> -	int _sifields_offset = offsetof(compat_siginfo_t, _sifields);
> -
>  	/*
>  	 * If adding a new si_code, there is probably new data in
>  	 * the siginfo.  Make sure folks bumping the si_code
> @@ -40,8 +38,7 @@ static inline void signal_compat_build_tests(void)
>  	 * in the ABI, of course.  Make sure none of them ever
>  	 * move and are always at the beginning:
>  	 */
> -	BUILD_BUG_ON(offsetof(compat_siginfo_t, _sifields) != 3 * sizeof(int));
> -#define CHECK_CSI_OFFSET(name)	  BUILD_BUG_ON(_sifields_offset != offsetof(compat_siginfo_t, _sifields.name))
> +#define CHECK_CSI_OFFSET(name)	  BUILD_BUG_ON(0 != offsetof(compat_siginfo_t, _sifields.name))
>  
>  	BUILD_BUG_ON(offsetof(siginfo_t, si_signo) != 0);
>  	BUILD_BUG_ON(offsetof(siginfo_t, si_errno) != 4);
> @@ -63,8 +60,8 @@ static inline void signal_compat_build_tests(void)
>  	 * structure stays within the padding size (checked
>  	 * above).
>  	 */
> -#define CHECK_CSI_SIZE(name, size) BUILD_BUG_ON(size != sizeof(((compat_siginfo_t *)0)->_sifields.name))
> -#define CHECK_SI_SIZE(name, size) BUILD_BUG_ON(size != sizeof(((siginfo_t *)0)->_sifields.name))
> +#define CHECK_CSI_SIZE(name, size) BUILD_BUG_ON(((3*sizeof(int))+(size)) != sizeof(((compat_siginfo_t *)0)->_sifields.name))
> +#define CHECK_SI_SIZE(name, size) BUILD_BUG_ON(((4*sizeof(int))+(size)) != sizeof(((siginfo_t *)0)->_sifields.name))
>  
>  	CHECK_CSI_OFFSET(_kill);
>  	CHECK_CSI_SIZE  (_kill, 2*sizeof(int));
> diff --git a/include/linux/compat.h b/include/linux/compat.h
> index 6af7bef15e94..d81493248bf3 100644
> --- a/include/linux/compat.h
> +++ b/include/linux/compat.h
> @@ -158,27 +158,28 @@ typedef union compat_sigval {
>  	compat_uptr_t	sival_ptr;
>  } compat_sigval_t;
>  
> -typedef struct compat_siginfo {
> -	int si_signo;
> -#ifndef __ARCH_HAS_SWAPPED_SIGINFO
> -	int si_errno;
> -	int si_code;
> -#else
> -	int si_code;
> -	int si_errno;
> -#endif
> +#define __COMPAT_SIGINFO_COMMON	\
> +	___SIGINFO_COMMON;	\
> +	int	_common_pad[__alignof__(compat_uptr_t) != __alignof__(int)]
>  
> +typedef struct compat_siginfo {
> +	union {
> +		struct {
> +			__COMPAT_SIGINFO_COMMON;
> +		};
>  	union {
> -		int _pad[128/sizeof(int) - 3];
> +		int _pad[128/sizeof(int)];
>  
>  		/* kill() */
>  		struct {
> +			__COMPAT_SIGINFO_COMMON;
>  			compat_pid_t _pid;	/* sender's pid */
>  			__compat_uid32_t _uid;	/* sender's uid */
>  		} _kill;
>  
>  		/* POSIX.1b timers */
>  		struct {
> +			__COMPAT_SIGINFO_COMMON;
>  			compat_timer_t _tid;	/* timer id */
>  			int _overrun;		/* overrun count */
>  			compat_sigval_t _sigval;	/* same as below */
> @@ -186,6 +187,7 @@ typedef struct compat_siginfo {
>  
>  		/* POSIX.1b signals */
>  		struct {
> +			__COMPAT_SIGINFO_COMMON;
>  			compat_pid_t _pid;	/* sender's pid */
>  			__compat_uid32_t _uid;	/* sender's uid */
>  			compat_sigval_t _sigval;
> @@ -193,6 +195,7 @@ typedef struct compat_siginfo {
>  
>  		/* SIGCHLD */
>  		struct {
> +			__COMPAT_SIGINFO_COMMON;
>  			compat_pid_t _pid;	/* which child */
>  			__compat_uid32_t _uid;	/* sender's uid */
>  			int _status;		/* exit code */
> @@ -203,6 +206,7 @@ typedef struct compat_siginfo {
>  #ifdef CONFIG_X86_X32_ABI
>  		/* SIGCHLD (x32 version) */
>  		struct {
> +			__COMPAT_SIGINFO_COMMON;
>  			compat_pid_t _pid;	/* which child */
>  			__compat_uid32_t _uid;	/* sender's uid */
>  			int _status;		/* exit code */
> @@ -213,6 +217,7 @@ typedef struct compat_siginfo {
>  
>  		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */
>  		struct {
> +			__COMPAT_SIGINFO_COMMON;
>  			compat_uptr_t _addr;	/* faulting insn/memory ref. */
>  #define __COMPAT_ADDR_BND_PKEY_PAD  (__alignof__(compat_uptr_t) < sizeof(short) ? \
>  				     sizeof(short) : __alignof__(compat_uptr_t))
> @@ -242,16 +247,19 @@ typedef struct compat_siginfo {
>  
>  		/* SIGPOLL */
>  		struct {
> +			__COMPAT_SIGINFO_COMMON;
>  			compat_long_t _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
>  			int _fd;
>  		} _sigpoll;
>  
>  		struct {
> +			__COMPAT_SIGINFO_COMMON;
>  			compat_uptr_t _call_addr; /* calling user insn */
>  			int _syscall;	/* triggering system call number */
>  			unsigned int _arch;	/* AUDIT_ARCH_* of syscall */
>  		} _sigsys;
>  	} _sifields;
> +	};
>  } compat_siginfo_t;
>  
>  struct compat_rlimit {
> diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
> index e663bf117b46..1fcede623a73 100644
> --- a/include/uapi/asm-generic/siginfo.h
> +++ b/include/uapi/asm-generic/siginfo.h
> @@ -29,15 +29,33 @@ typedef union sigval {
>  #define __ARCH_SI_ATTRIBUTES
>  #endif
>  
> +#ifndef __ARCH_HAS_SWAPPED_SIGINFO
> +#define ___SIGINFO_COMMON	\
> +	int	si_signo;	\
> +	int	si_errno;	\
> +	int	si_code
> +#else
> +#define ___SIGINFO_COMMON	\
> +	int	si_signo;	\
> +	int	si_code;	\
> +	int	si_errno
> +#endif /* __ARCH_HAS_SWAPPED_SIGINFO */
> +
> +#define __SIGINFO_COMMON	\
> +	___SIGINFO_COMMON;	\
> +	int	_common_pad[__alignof__(void *) != __alignof(int)]
> +
>  union __sifields {
>  	/* kill() */
>  	struct {
> +		__SIGINFO_COMMON;
>  		__kernel_pid_t _pid;	/* sender's pid */
>  		__kernel_uid32_t _uid;	/* sender's uid */
>  	} _kill;
>  
>  	/* POSIX.1b timers */
>  	struct {
> +		__SIGINFO_COMMON;
>  		__kernel_timer_t _tid;	/* timer id */
>  		int _overrun;		/* overrun count */
>  		sigval_t _sigval;	/* same as below */
> @@ -46,6 +64,7 @@ union __sifields {
>  
>  	/* POSIX.1b signals */
>  	struct {
> +		__SIGINFO_COMMON;
>  		__kernel_pid_t _pid;	/* sender's pid */
>  		__kernel_uid32_t _uid;	/* sender's uid */
>  		sigval_t _sigval;
> @@ -53,6 +72,7 @@ union __sifields {
>  
>  	/* SIGCHLD */
>  	struct {
> +		__SIGINFO_COMMON;
>  		__kernel_pid_t _pid;	/* which child */
>  		__kernel_uid32_t _uid;	/* sender's uid */
>  		int _status;		/* exit code */
> @@ -62,6 +82,7 @@ union __sifields {
>  
>  	/* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */
>  	struct {
> +		__SIGINFO_COMMON;
>  		void __user *_addr; /* faulting insn/memory ref. */
>  #ifdef __ia64__
>  		int _imm;		/* immediate value for "break" */
> @@ -97,35 +118,28 @@ union __sifields {
>  
>  	/* SIGPOLL */
>  	struct {
> +		__SIGINFO_COMMON;
>  		__ARCH_SI_BAND_T _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
>  		int _fd;
>  	} _sigpoll;
>  
>  	/* SIGSYS */
>  	struct {
> +		__SIGINFO_COMMON;
>  		void __user *_call_addr; /* calling user insn */
>  		int _syscall;	/* triggering system call number */
>  		unsigned int _arch;	/* AUDIT_ARCH_* of syscall */
>  	} _sigsys;
>  };
>  
> -#ifndef __ARCH_HAS_SWAPPED_SIGINFO
> -#define __SIGINFO 			\
> -struct {				\
> -	int si_signo;			\
> -	int si_errno;			\
> -	int si_code;			\
> -	union __sifields _sifields;	\
> -}
> -#else
> +
>  #define __SIGINFO 			\
> -struct {				\
> -	int si_signo;			\
> -	int si_code;			\
> -	int si_errno;			\
> +union {					\
> +	struct {			\
> +		__SIGINFO_COMMON;	\
> +	};				\
>  	union __sifields _sifields;	\
>  }
> -#endif /* __ARCH_HAS_SWAPPED_SIGINFO */
>  
>  typedef struct siginfo {
>  	union {

  reply index

Thread overview: 103+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-29  7:48 siginfo_t ABI break on sparc64 from si_addr_lsb move 3y ago Marco Elver
2021-04-29 17:23 ` Eric W. Biederman
2021-04-29 18:46   ` Marco Elver
2021-04-29 20:48   ` Arnd Bergmann
2021-04-30 17:08     ` Eric W. Biederman
2021-04-30 19:07       ` Marco Elver
2021-04-30 20:15         ` Eric W. Biederman
2021-04-30 23:50           ` Marco Elver
2021-04-30 22:49         ` [RFC][PATCH 0/3] signal: Move si_trapno into the _si_fault union Eric W. Biederman
2021-04-30 22:50           ` [PATCH 1/3] siginfo: Move si_trapno inside the union inside _si_fault Eric W. Biederman
2021-05-01 10:31             ` Marco Elver
2021-05-02 18:27               ` Eric W. Biederman
2021-04-30 22:54           ` [PATCH 2/3] signal: Implement SIL_FAULT_TRAPNO Eric W. Biederman
2021-04-30 23:19             ` Eric W. Biederman
2021-05-01 10:33             ` Marco Elver
2021-05-02 18:24               ` Eric W. Biederman
2021-04-30 22:55           ` [PATCH 3/3] signal: Use dedicated helpers to send signals with si_trapno set Eric W. Biederman
2021-05-01 10:33             ` Marco Elver
2021-04-30 22:56           ` [PATCH 4/3] signal: Remove __ARCH_SI_TRAPNO Eric W. Biederman
2021-04-30 23:23           ` Is perf_sigtrap synchronous? Eric W. Biederman
2021-05-01  0:28             ` Marco Elver
2021-04-30 23:42           ` [PATCH 5/3] signal: Rename SIL_PERF_EVENT SIL_FAULT_PERF_EVENT for consistency Eric W. Biederman
2021-05-01 10:35             ` Marco Elver
2021-04-30 23:43           ` [PATCH 6/3] signal: Factor force_sig_perf out of perf_sigtrap Eric W. Biederman
2021-05-01 10:45             ` Marco Elver
2021-04-30 23:43           ` [PATCH 7/3] signal: Deliver all of the perf_data in si_perf Eric W. Biederman
2021-05-01 10:47             ` Marco Elver
2021-05-02 18:39               ` Eric W. Biederman
2021-05-02 19:13                 ` Marco Elver
2021-05-03 12:44                 ` Peter Zijlstra
2021-05-03 19:38                   ` Eric W. Biederman
2021-05-03 19:53                     ` Marco Elver
2021-04-30 23:47           ` [RFC][PATCH 0/3] signal: Move si_trapno into the _si_fault union Eric W. Biederman
2021-05-01  0:37             ` Marco Elver
2021-05-01 15:16               ` Eric W. Biederman
2021-05-01 16:24                 ` Marco Elver
2021-05-03 20:25                   ` [PATCH 00/12] signal: sort out si_trapno and si_perf Eric W. Biederman
2021-05-03 20:38                     ` [PATCH 01/12] sparc64: Add compile-time asserts for siginfo_t offsets Eric W. Beiderman
2021-05-03 20:38                       ` [PATCH 02/12] arm: " Eric W. Beiderman
2021-05-03 20:38                       ` [PATCH 03/12] arm64: " Eric W. Beiderman
2021-05-03 20:38                       ` [PATCH 04/12] siginfo: Move si_trapno inside the union inside _si_fault Eric W. Beiderman
2021-05-03 20:38                       ` [PATCH 05/12] signal: Implement SIL_FAULT_TRAPNO Eric W. Beiderman
2021-05-03 20:38                       ` [PATCH 06/12] signal: Use dedicated helpers to send signals with si_trapno set Eric W. Beiderman
2021-05-03 20:38                       ` [PATCH 07/12] signal: Remove __ARCH_SI_TRAPNO Eric W. Beiderman
2021-05-03 20:38                       ` [PATCH 08/12] signal: Rename SIL_PERF_EVENT SIL_FAULT_PERF_EVENT for consistency Eric W. Beiderman
2021-05-03 20:38                       ` [PATCH 09/12] signal: Factor force_sig_perf out of perf_sigtrap Eric W. Beiderman
2021-05-03 20:38                       ` [PATCH 10/12] signal: Redefine signinfo so 64bit fields are possible Eric W. Beiderman
2021-05-03 21:04                         ` Eric W. Biederman [this message]
2021-05-03 22:47                           ` Marco Elver
2021-05-04  3:42                             ` Eric W. Biederman
2021-05-04  4:03                               ` Peter Collingbourne
2021-05-04  9:52                                 ` Marco Elver
2021-05-04 16:16                                   ` Eric W. Biederman
2021-05-03 20:38                       ` [PATCH 11/12] signal: Deliver all of the siginfo perf data in _perf Eric W. Beiderman
2021-05-03 20:38                       ` [PATCH 12/12] signalfd: Remove SIL_FAULT_PERF_EVENT fields from signalfd_siginfo Eric W. Beiderman
2021-05-04 21:13                     ` [PATCH v3 00/12] signal: sort out si_trapno and si_perf Eric W. Biederman
2021-05-04 22:05                       ` Marco Elver
2021-05-05 14:12                         ` Eric W. Biederman
2021-05-05 14:10                       ` [PATCH v3 01/12] sparc64: Add compile-time asserts for siginfo_t offsets Eric W. Beiderman
2021-05-05 14:10                         ` [PATCH v3 02/12] arm: " Eric W. Beiderman
2021-05-05 14:10                         ` [PATCH v3 03/12] arm64: " Eric W. Beiderman
2021-05-05 14:10                         ` [PATCH v3 04/12] signal: Verify the alignment and size of siginfo_t Eric W. Beiderman
2021-05-05 17:24                           ` Marco Elver
2021-05-05 14:10                         ` [PATCH v3 05/12] siginfo: Move si_trapno inside the union inside _si_fault Eric W. Beiderman
2021-05-05 14:10                         ` [PATCH v3 06/12] signal: Implement SIL_FAULT_TRAPNO Eric W. Beiderman
2021-05-05 17:25                           ` Marco Elver
2021-05-05 14:10                         ` [PATCH v3 07/12] signal: Use dedicated helpers to send signals with si_trapno set Eric W. Beiderman
2021-05-05 17:25                           ` Marco Elver
2021-05-05 14:10                         ` [PATCH v3 08/12] signal: Remove __ARCH_SI_TRAPNO Eric W. Beiderman
2021-05-05 17:25                           ` Marco Elver
2021-05-05 14:10                         ` [PATCH v3 09/12] signal: Rename SIL_PERF_EVENT SIL_FAULT_PERF_EVENT for consistency Eric W. Beiderman
2021-05-05 17:26                           ` Marco Elver
2021-05-05 14:10                         ` [PATCH v3 10/12] signal: Factor force_sig_perf out of perf_sigtrap Eric W. Beiderman
2021-05-05 17:26                           ` Marco Elver
2021-05-06 10:54                           ` Peter Zijlstra
2021-05-05 14:11                         ` [PATCH v3 11/12] signal: Deliver all of the siginfo perf data in _perf Eric W. Beiderman
2021-05-05 17:27                           ` Marco Elver
2021-05-05 14:11                         ` [PATCH v3 12/12] signalfd: Remove SIL_FAULT_PERF_EVENT fields from signalfd_siginfo Eric W. Beiderman
2021-05-05 17:27                           ` Marco Elver
2021-05-05 17:28                       ` [PATCH v3 00/12] signal: sort out si_trapno and si_perf Marco Elver
2021-05-06  7:00                       ` Geert Uytterhoeven
2021-05-06 10:43                         ` Marco Elver
2021-05-06 15:28                           ` Eric W. Biederman
2021-05-06 15:14                         ` Eric W. Biederman
2021-05-14  4:54                       ` [GIT PULL] siginfo: ABI fixes for v5.13-rc2 Eric W. Biederman
2021-05-14 19:14                         ` Linus Torvalds
2021-05-14 21:15                           ` Eric W. Biederman
2021-05-14 22:38                             ` Eric W. Biederman
2021-05-16  7:40                         ` Ingo Molnar
2021-05-17 15:29                           ` Eric W. Biederman
2021-05-21 14:59                         ` [GIT PULL] siginfo: ABI fixes for v5.13-rc3 Eric W. Biederman
2021-05-21 16:34                           ` pr-tracker-bot
2021-05-17 19:56                       ` [PATCH v4 0/5] siginfo: ABI fixes for TRAP_PERF Eric W. Biederman
2021-05-17 19:57                         ` [PATCH v4 1/5] siginfo: Move si_trapno inside the union inside _si_fault Eric W. Beiderman
2021-05-17 19:57                           ` [PATCH v4 2/5] signal: Implement SIL_FAULT_TRAPNO Eric W. Beiderman
2021-05-17 19:57                           ` [PATCH v4 3/5] signal: Factor force_sig_perf out of perf_sigtrap Eric W. Beiderman
2021-05-17 19:57                           ` [PATCH v4 4/5] signal: Deliver all of the siginfo perf data in _perf Eric W. Beiderman
2021-05-17 19:57                           ` [PATCH v4 5/5] signalfd: Remove SIL_PERF_EVENT fields from signalfd_siginfo Eric W. Beiderman
2021-05-17 20:53                         ` [PATCH v4 0/5] siginfo: ABI fixes for TRAP_PERF Marco Elver
2021-05-18  3:46                           ` Eric W. Biederman
2021-05-18  6:44                             ` Marco Elver
2021-05-01 16:26               ` [RFC][PATCH 0/3] signal: Move si_trapno into the _si_fault union Marco Elver
2021-04-30 20:43       ` siginfo_t ABI break on sparc64 from si_addr_lsb move 3y ago Arnd Bergmann

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=m1o8drfs1m.fsf@fess.ebiederm.org \
    --to=ebiederm@xmission.com \
    --cc=arnd@arndb.de \
    --cc=davem@davemloft.net \
    --cc=dvyukov@google.com \
    --cc=elver@google.com \
    --cc=fweimer@redhat.com \
    --cc=glider@google.com \
    --cc=kasan-dev@googlegroups.com \
    --cc=linux-api@vger.kernel.org \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=pcc@google.com \
    --cc=peterz@infradead.org \
    --cc=sparclinux@vger.kernel.org \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
	git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git
	git clone --mirror https://lore.kernel.org/lkml/9 lkml/git/9.git
	git clone --mirror https://lore.kernel.org/lkml/10 lkml/git/10.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git