| Message ID | 20210101202245.27409-1-petr.vorel@gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [1/2] uapi: move constants from <linux/kernel.h> to <linux/const.h> | expand |
> From: Arnaldo Carvalho de Melo <acme@redhat.com> > commit 7ddcdea5b54492f54700f427f58690cf1e187e5e upstream. > To pick up the changes in: > a85cbe6159ffc973 ("uapi: move constants from <linux/kernel.h> to <linux/const.h>") > That causes no changes in tooling, just addresses this perf build > warning: > Warning: Kernel ABI header at 'tools/include/uapi/linux/const.h' differs from latest version at 'include/uapi/linux/const.h' > diff -u tools/include/uapi/linux/const.h include/uapi/linux/const.h > Cc: Adrian Hunter <adrian.hunter@intel.com> > Cc: Ian Rogers <irogers@google.com> > Cc: Jiri Olsa <jolsa@kernel.org> > Cc: Namhyung Kim <namhyung@kernel.org> > Cc: Petr Vorel <petr.vorel@gmail.com> > Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> > Signed-off-by: Petr Vorel <petr.vorel@gmail.com> > --- > Fix for previous commit. For stable/linux-5.4.y. Kind regards, Petr > Kind regards, > Petr > tools/include/uapi/linux/const.h | 5 +++++ > 1 file changed, 5 insertions(+) > diff --git a/tools/include/uapi/linux/const.h b/tools/include/uapi/linux/const.h > index 5ed721ad5b19..af2a44c08683 100644 > --- a/tools/include/uapi/linux/const.h > +++ b/tools/include/uapi/linux/const.h > @@ -28,4 +28,9 @@ > #define _BITUL(x) (_UL(1) << (x)) > #define _BITULL(x) (_ULL(1) << (x)) > +#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) > +#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) > + > +#define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) > + > #endif /* _UAPI_LINUX_CONST_H */
On Fri, Jan 01, 2021 at 09:27:47PM +0100, Petr Vorel wrote: > > From: Arnaldo Carvalho de Melo <acme@redhat.com> > > > commit 7ddcdea5b54492f54700f427f58690cf1e187e5e upstream. > > > To pick up the changes in: > > > a85cbe6159ffc973 ("uapi: move constants from <linux/kernel.h> to <linux/const.h>") > > > That causes no changes in tooling, just addresses this perf build > > warning: > > > Warning: Kernel ABI header at 'tools/include/uapi/linux/const.h' differs from latest version at 'include/uapi/linux/const.h' > > diff -u tools/include/uapi/linux/const.h include/uapi/linux/const.h > > > Cc: Adrian Hunter <adrian.hunter@intel.com> > > Cc: Ian Rogers <irogers@google.com> > > Cc: Jiri Olsa <jolsa@kernel.org> > > Cc: Namhyung Kim <namhyung@kernel.org> > > Cc: Petr Vorel <petr.vorel@gmail.com> > > Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> > > Signed-off-by: Petr Vorel <petr.vorel@gmail.com> > > --- > > Fix for previous commit. > For stable/linux-5.4.y. Both now queued up, thanks. greg k-h
diff --git a/include/uapi/linux/const.h b/include/uapi/linux/const.h index 5ed721ad5b19..af2a44c08683 100644 --- a/include/uapi/linux/const.h +++ b/include/uapi/linux/const.h @@ -28,4 +28,9 @@ #define _BITUL(x) (_UL(1) << (x)) #define _BITULL(x) (_ULL(1) << (x)) +#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) +#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) + +#define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) + #endif /* _UAPI_LINUX_CONST_H */ diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h index 8938b76c4ee3..7857aa413627 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -14,7 +14,7 @@ #ifndef _UAPI_LINUX_ETHTOOL_H #define _UAPI_LINUX_ETHTOOL_H -#include <linux/kernel.h> +#include <linux/const.h> #include <linux/types.h> #include <linux/if_ether.h> diff --git a/include/uapi/linux/kernel.h b/include/uapi/linux/kernel.h index 0ff8f7477847..fadf2db71fe8 100644 --- a/include/uapi/linux/kernel.h +++ b/include/uapi/linux/kernel.h @@ -3,13 +3,6 @@ #define _UAPI_LINUX_KERNEL_H #include <linux/sysinfo.h> - -/* - * 'kernel.h' contains some often-used function prototypes etc - */ -#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) -#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) - -#define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) +#include <linux/const.h> #endif /* _UAPI_LINUX_KERNEL_H */ diff --git a/include/uapi/linux/lightnvm.h b/include/uapi/linux/lightnvm.h index f9a1be7fc696..ead2e72e5c88 100644 --- a/include/uapi/linux/lightnvm.h +++ b/include/uapi/linux/lightnvm.h @@ -21,7 +21,7 @@ #define _UAPI_LINUX_LIGHTNVM_H #ifdef __KERNEL__ -#include <linux/kernel.h> +#include <linux/const.h> #include <linux/ioctl.h> #else /* __KERNEL__ */ #include <stdio.h> diff --git a/include/uapi/linux/mroute6.h b/include/uapi/linux/mroute6.h index c36177a86516..a1fd6173e2db 100644 --- a/include/uapi/linux/mroute6.h +++ b/include/uapi/linux/mroute6.h @@ -2,7 +2,7 @@ #ifndef _UAPI__LINUX_MROUTE6_H #define _UAPI__LINUX_MROUTE6_H -#include <linux/kernel.h> +#include <linux/const.h> #include <linux/types.h> #include <linux/sockios.h> #include <linux/in6.h> /* For struct sockaddr_in6. */ diff --git a/include/uapi/linux/netfilter/x_tables.h b/include/uapi/linux/netfilter/x_tables.h index a8283f7dbc51..b8c6bb233ac1 100644 --- a/include/uapi/linux/netfilter/x_tables.h +++ b/include/uapi/linux/netfilter/x_tables.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI_X_TABLES_H #define _UAPI_X_TABLES_H -#include <linux/kernel.h> +#include <linux/const.h> #include <linux/types.h> #define XT_FUNCTION_MAXNAMELEN 30 diff --git a/include/uapi/linux/netlink.h b/include/uapi/linux/netlink.h index 0a4d73317759..622c78c821aa 100644 --- a/include/uapi/linux/netlink.h +++ b/include/uapi/linux/netlink.h @@ -2,7 +2,7 @@ #ifndef _UAPI__LINUX_NETLINK_H #define _UAPI__LINUX_NETLINK_H -#include <linux/kernel.h> +#include <linux/const.h> #include <linux/socket.h> /* for __kernel_sa_family_t */ #include <linux/types.h> diff --git a/include/uapi/linux/sysctl.h b/include/uapi/linux/sysctl.h index 87aa2a6d9125..cc453ed0e65e 100644 --- a/include/uapi/linux/sysctl.h +++ b/include/uapi/linux/sysctl.h @@ -23,7 +23,7 @@ #ifndef _UAPI_LINUX_SYSCTL_H #define _UAPI_LINUX_SYSCTL_H -#include <linux/kernel.h> +#include <linux/const.h> #include <linux/types.h> #include <linux/compiler.h>
and include <linux/const.h> in UAPI headers instead of <linux/kernel.h>. commit a85cbe6159ffc973e5702f70a3bd5185f8f3c38d upstream. The reason is to avoid indirect <linux/sysinfo.h> include when using some network headers: <linux/netlink.h> or others -> <linux/kernel.h> -> <linux/sysinfo.h>. This indirect include causes on MUSL redefinition of struct sysinfo when included both <sys/sysinfo.h> and some of UAPI headers: In file included from x86_64-buildroot-linux-musl/sysroot/usr/include/linux/kernel.h:5, from x86_64-buildroot-linux-musl/sysroot/usr/include/linux/netlink.h:5, from ../include/tst_netlink.h:14, from tst_crypto.c:13: x86_64-buildroot-linux-musl/sysroot/usr/include/linux/sysinfo.h:8:8: error: redefinition of `struct sysinfo' struct sysinfo { ^~~~~~~ In file included from ../include/tst_safe_macros.h:15, from ../include/tst_test.h:93, from tst_crypto.c:11: x86_64-buildroot-linux-musl/sysroot/usr/include/sys/sysinfo.h:10:8: note: originally defined here Link: https://lkml.kernel.org/r/20201015190013.8901-1-petr.vorel@gmail.com Signed-off-by: Petr Vorel <petr.vorel@gmail.com> Suggested-by: Rich Felker <dalias@aerifal.cx> Acked-by: Rich Felker <dalias@libc.org> Cc: Peter Korsgaard <peter@korsgaard.com> Cc: Baruch Siach <baruch@tkos.co.il> Cc: Florian Weimer <fweimer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- Hi, could this fix be backported to stable releases? Maybe safer to wait till v5.11 release. Adjusted for stable/linux-5.4.y. Kind regards, Petr include/uapi/linux/const.h | 5 +++++ include/uapi/linux/ethtool.h | 2 +- include/uapi/linux/kernel.h | 9 +-------- include/uapi/linux/lightnvm.h | 2 +- include/uapi/linux/mroute6.h | 2 +- include/uapi/linux/netfilter/x_tables.h | 2 +- include/uapi/linux/netlink.h | 2 +- include/uapi/linux/sysctl.h | 2 +- 8 files changed, 12 insertions(+), 14 deletions(-)