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Message-Id: <1331587715-26069-2-git-send-email-wad@chromium.org> Date: Mon, 12 Mar 2012 16:28:24 -0500 From: Will Drewry <wad@...omium.org> To: linux-kernel@...r.kernel.org Cc: linux-arch@...r.kernel.org, linux-doc@...r.kernel.org, kernel-hardening@...ts.openwall.com, netdev@...r.kernel.org, x86@...nel.org, arnd@...db.de, davem@...emloft.net, hpa@...or.com, mingo@...hat.com, oleg@...hat.com, peterz@...radead.org, rdunlap@...otime.net, mcgrathr@...omium.org, tglx@...utronix.de, luto@....edu, eparis@...hat.com, serge.hallyn@...onical.com, djm@...drot.org, scarybeasts@...il.com, indan@....nu, pmoore@...hat.com, akpm@...ux-foundation.org, corbet@....net, eric.dumazet@...il.com, markus@...omium.org, coreyb@...ux.vnet.ibm.com, keescook@...omium.org, Will Drewry <wad@...omium.org> Subject: [PATCH v14 02/13] net/compat.c,linux/filter.h: share compat_sock_fprog Any other users of bpf_*_filter that take a struct sock_fprog from userspace will need to be able to also accept a compat_sock_fprog if the arch supports compat calls. This change let's the existing compat_sock_fprog be shared. Acked-by: Serge Hallyn <serge.hallyn@...onical.com> Signed-off-by: Will Drewry <wad@...omium.org> v14: rebase/nochanges v13: rebase on to 88ebdda6159ffc15699f204c33feb3e431bf9bdc v12: rebase on to linux-next v11: introduction --- include/linux/filter.h | 11 +++++++++++ net/compat.c | 8 -------- 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/include/linux/filter.h b/include/linux/filter.h index aaa2e80..f2e5315 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -10,6 +10,7 @@ #ifdef __KERNEL__ #include <linux/atomic.h> +#include <linux/compat.h> #endif /* @@ -132,6 +133,16 @@ struct sock_fprog { /* Required for SO_ATTACH_FILTER. */ #ifdef __KERNEL__ +#ifdef CONFIG_COMPAT +/* + * A struct sock_filter is architecture independent. + */ +struct compat_sock_fprog { + u16 len; + compat_uptr_t filter; /* struct sock_filter * */ +}; +#endif + struct sk_buff; struct sock; diff --git a/net/compat.c b/net/compat.c index 6def90e..c5c61c8 100644 --- a/net/compat.c +++ b/net/compat.c @@ -326,14 +326,6 @@ void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm) __scm_destroy(scm); } -/* - * A struct sock_filter is architecture independent. - */ -struct compat_sock_fprog { - u16 len; - compat_uptr_t filter; /* struct sock_filter * */ -}; - static int do_set_attach_filter(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) { -- 1.7.5.4
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