From: Stefano Stabellini <sstabellini@kernel.org> To: Julien Grall <julien.grall@arm.com> Cc: Artem_Mygaiev@epam.com, xen-devel@lists.xenproject.org, sstabellini@kernel.org, Andrii_Anisov@epam.com, Oleksandr_Tyshchenko@epam.com Subject: Re: [PATCH 12/12] xen/arm64: __cmpxchg and __cmpxchg_mb should always be inline Date: Wed, 17 Apr 2019 13:35:34 -0700 (PDT) [thread overview] Message-ID: <alpine.DEB.2.10.1904171335190.1370@sstabellini-ThinkPad-X260> (raw) In-Reply-To: <20190327184531.30986-13-julien.grall@arm.com> On Wed, 27 Mar 2019, Julien Grall wrote: > Currently __cmpxchg_mb and __cmpxchg are only marked inline. The > compiler is free to decide to not honor the inline. This will result to > generate code use __bad_cmpxchg and lead a link failure. > > This was caught by Clang 8.0. > > Signed-off-by: Julien Grall <julien.grall@arm.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> > --- > xen/include/asm-arm/arm64/cmpxchg.h | 10 ++++++---- > 1 file changed, 6 insertions(+), 4 deletions(-) > > diff --git a/xen/include/asm-arm/arm64/cmpxchg.h b/xen/include/asm-arm/arm64/cmpxchg.h > index ae42b2f5ff..359271173e 100644 > --- a/xen/include/asm-arm/arm64/cmpxchg.h > +++ b/xen/include/asm-arm/arm64/cmpxchg.h > @@ -63,8 +63,9 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size > > extern void __bad_cmpxchg(volatile void *ptr, int size); > > -static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, > - unsigned long new, int size) > +static always_inline unsigned long __cmpxchg(volatile void *ptr, > + unsigned long old, > + unsigned long new, int size) > { > unsigned long oldval = 0, res; > > @@ -137,8 +138,9 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, > return oldval; > } > > -static inline unsigned long __cmpxchg_mb(volatile void *ptr, unsigned long old, > - unsigned long new, int size) > +static always_inline unsigned long __cmpxchg_mb(volatile void *ptr, > + unsigned long old, > + unsigned long new, int size) > { > unsigned long ret; > > -- > 2.11.0 > _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
WARNING: multiple messages have this Message-ID (diff)
From: Stefano Stabellini <sstabellini@kernel.org> To: Julien Grall <julien.grall@arm.com> Cc: Artem_Mygaiev@epam.com, xen-devel@lists.xenproject.org, sstabellini@kernel.org, Andrii_Anisov@epam.com, Oleksandr_Tyshchenko@epam.com Subject: Re: [Xen-devel] [PATCH 12/12] xen/arm64: __cmpxchg and __cmpxchg_mb should always be inline Date: Wed, 17 Apr 2019 13:35:34 -0700 (PDT) [thread overview] Message-ID: <alpine.DEB.2.10.1904171335190.1370@sstabellini-ThinkPad-X260> (raw) Message-ID: <20190417203534.ccmcc-C0Jky7LZlvYUxI5srJt1Z1K4xoLhuabLNf6sM@z> (raw) In-Reply-To: <20190327184531.30986-13-julien.grall@arm.com> On Wed, 27 Mar 2019, Julien Grall wrote: > Currently __cmpxchg_mb and __cmpxchg are only marked inline. The > compiler is free to decide to not honor the inline. This will result to > generate code use __bad_cmpxchg and lead a link failure. > > This was caught by Clang 8.0. > > Signed-off-by: Julien Grall <julien.grall@arm.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> > --- > xen/include/asm-arm/arm64/cmpxchg.h | 10 ++++++---- > 1 file changed, 6 insertions(+), 4 deletions(-) > > diff --git a/xen/include/asm-arm/arm64/cmpxchg.h b/xen/include/asm-arm/arm64/cmpxchg.h > index ae42b2f5ff..359271173e 100644 > --- a/xen/include/asm-arm/arm64/cmpxchg.h > +++ b/xen/include/asm-arm/arm64/cmpxchg.h > @@ -63,8 +63,9 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size > > extern void __bad_cmpxchg(volatile void *ptr, int size); > > -static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, > - unsigned long new, int size) > +static always_inline unsigned long __cmpxchg(volatile void *ptr, > + unsigned long old, > + unsigned long new, int size) > { > unsigned long oldval = 0, res; > > @@ -137,8 +138,9 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, > return oldval; > } > > -static inline unsigned long __cmpxchg_mb(volatile void *ptr, unsigned long old, > - unsigned long new, int size) > +static always_inline unsigned long __cmpxchg_mb(volatile void *ptr, > + unsigned long old, > + unsigned long new, int size) > { > unsigned long ret; > > -- > 2.11.0 > _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
next prev parent reply other threads:[~2019-04-17 20:35 UTC|newest] Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-03-27 18:45 [PATCH 00/12] xen/arm: Add support to build with clang Julien Grall 2019-03-27 18:45 ` [PATCH 01/12] xen: clang: Support correctly cross-compile Julien Grall 2019-03-28 9:55 ` Jan Beulich 2019-03-28 10:14 ` Andrew Cooper 2019-03-28 10:28 ` Jan Beulich 2019-03-28 10:43 ` Andrew Cooper 2019-03-28 10:56 ` Jan Beulich 2019-03-29 10:09 ` Julien Grall 2019-03-29 9:41 ` Julien Grall 2019-03-29 10:14 ` Jan Beulich 2019-04-19 18:47 ` Stefano Stabellini 2019-04-19 18:47 ` [Xen-devel] " Stefano Stabellini 2019-04-24 20:18 ` Julien Grall 2019-04-24 20:18 ` [Xen-devel] " Julien Grall 2019-03-27 18:45 ` [PATCH 02/12] xen/arm: fix get_cpu_info() when built with clang Julien Grall 2019-04-17 20:45 ` Stefano Stabellini 2019-04-17 20:45 ` [Xen-devel] " Stefano Stabellini 2019-04-17 21:00 ` Julien Grall 2019-04-17 21:00 ` [Xen-devel] " Julien Grall 2019-04-18 18:03 ` Stefano Stabellini 2019-04-18 18:03 ` [Xen-devel] " Stefano Stabellini 2019-09-29 14:26 ` Julien Grall 2019-10-01 1:15 ` Stefano Stabellini 2019-10-01 1:22 ` Stefano Stabellini 2019-10-01 9:49 ` Julien Grall 2019-10-01 9:47 ` Julien Grall 2019-03-27 18:45 ` [PATCH 03/12] xen/arm: zynqmp: Fix header guard for xilinx-zynqmp-eemi.h Julien Grall 2019-04-17 20:20 ` Stefano Stabellini 2019-04-17 20:20 ` [Xen-devel] " Stefano Stabellini 2019-03-27 18:45 ` [PATCH 04/12] xen/arm: memaccess: Initialize correctly *access in __p2m_get_mem_access Julien Grall 2019-03-27 19:08 ` Razvan Cojocaru 2019-03-27 18:45 ` [PATCH 05/12] xen/arm64: bitops: Match the register size with the value size in flsl Julien Grall 2019-03-27 19:03 ` Andrew Cooper 2019-03-27 20:13 ` Julien Grall 2019-04-17 20:24 ` Stefano Stabellini 2019-04-17 20:24 ` [Xen-devel] " Stefano Stabellini 2019-04-17 21:02 ` Julien Grall 2019-04-17 21:02 ` [Xen-devel] " Julien Grall 2019-04-18 18:40 ` Stefano Stabellini 2019-04-18 18:40 ` [Xen-devel] " Stefano Stabellini 2019-04-18 18:57 ` Julien Grall 2019-04-18 18:57 ` [Xen-devel] " Julien Grall 2019-04-18 19:00 ` Stefano Stabellini 2019-04-18 19:00 ` [Xen-devel] " Stefano Stabellini 2019-03-27 18:45 ` [PATCH 06/12] xen/arm64: sysreg: Implement the 32-bit helpers using the 64-bit helpers Julien Grall 2019-03-27 19:15 ` Andrew Cooper 2019-03-27 20:21 ` Julien Grall 2019-04-17 20:26 ` Stefano Stabellini 2019-04-17 20:26 ` [Xen-devel] " Stefano Stabellini 2019-03-27 18:45 ` [PATCH 07/12] xen/arm: cpuerrata: Match register size with value size in check_workaround_* Julien Grall 2019-04-17 20:28 ` Stefano Stabellini 2019-04-17 20:28 ` [Xen-devel] " Stefano Stabellini 2019-04-17 21:15 ` Julien Grall 2019-04-17 21:15 ` [Xen-devel] " Julien Grall 2019-04-18 18:23 ` Stefano Stabellini 2019-04-18 18:23 ` [Xen-devel] " Stefano Stabellini 2019-04-18 18:47 ` Julien Grall 2019-04-18 18:47 ` [Xen-devel] " Julien Grall 2019-04-18 18:52 ` Stefano Stabellini 2019-04-18 18:52 ` [Xen-devel] " Stefano Stabellini 2019-04-18 19:01 ` Julien Grall 2019-04-18 19:01 ` [Xen-devel] " Julien Grall 2019-04-18 19:04 ` Stefano Stabellini 2019-04-18 19:04 ` [Xen-devel] " Stefano Stabellini 2019-03-27 18:45 ` [PATCH 08/12] xen/arm: cpufeature: Match register size with value size in cpus_have_const_cap Julien Grall 2019-04-17 20:29 ` Stefano Stabellini 2019-04-17 20:29 ` [Xen-devel] " Stefano Stabellini 2019-04-17 21:16 ` Julien Grall 2019-04-17 21:16 ` [Xen-devel] " Julien Grall 2019-03-27 18:45 ` [PATCH 09/12] xen/arm: guest_walk: Avoid theoritical unitialized value in get_top_bit Julien Grall 2019-04-17 20:31 ` Stefano Stabellini 2019-04-17 20:31 ` [Xen-devel] " Stefano Stabellini 2019-03-27 18:45 ` [PATCH 10/12] xen/arm: mm: Mark check_memory_layout_alignment_constraints as unused Julien Grall 2019-03-27 19:10 ` Andrew Cooper 2019-04-09 12:09 ` Julien Grall 2019-04-09 12:09 ` [Xen-devel] " Julien Grall 2019-03-27 18:45 ` [PATCH 11/12] xen/arm: traps: Mark check_stack_alignment_constraints " Julien Grall 2019-03-27 18:45 ` [PATCH 12/12] xen/arm64: __cmpxchg and __cmpxchg_mb should always be inline Julien Grall 2019-04-17 20:35 ` Stefano Stabellini [this message] 2019-04-17 20:35 ` [Xen-devel] " Stefano Stabellini 2019-03-28 11:27 ` [PATCH 00/12] xen/arm: Add support to build with clang Artem Mygaiev 2019-03-29 10:13 ` Julien Grall 2019-04-16 22:43 ` Stefano Stabellini 2019-04-16 22:43 ` [Xen-devel] " Stefano Stabellini 2019-04-17 9:42 ` Julien Grall 2019-04-17 9:42 ` [Xen-devel] " Julien Grall 2019-04-18 9:15 ` Artem Mygaiev 2019-04-18 9:15 ` [Xen-devel] " Artem Mygaiev 2019-04-18 10:43 ` Julien Grall 2019-04-18 10:43 ` [Xen-devel] " Julien Grall 2019-04-18 11:15 ` Artem Mygaiev 2019-04-18 11:15 ` [Xen-devel] " Artem Mygaiev 2019-04-18 18:33 ` Julien Grall 2019-04-18 18:33 ` [Xen-devel] " Julien Grall 2019-04-23 13:39 ` Artem Mygaiev 2019-04-23 13:39 ` [Xen-devel] " Artem Mygaiev 2019-04-24 21:07 ` Julien Grall 2019-04-24 21:07 ` [Xen-devel] " Julien Grall 2019-04-25 3:31 ` Artem Mygaiev 2019-04-25 3:31 ` [Xen-devel] " Artem Mygaiev 2019-04-24 11:01 ` Roger Pau Monné 2019-04-24 11:01 ` [Xen-devel] " Roger Pau Monné 2019-04-18 11:13 ` Julien Grall 2019-04-18 11:13 ` [Xen-devel] " Julien Grall
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=alpine.DEB.2.10.1904171335190.1370@sstabellini-ThinkPad-X260 \ --to=sstabellini@kernel.org \ --cc=Andrii_Anisov@epam.com \ --cc=Artem_Mygaiev@epam.com \ --cc=Oleksandr_Tyshchenko@epam.com \ --cc=julien.grall@arm.com \ --cc=xen-devel@lists.xenproject.org \ /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: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.