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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Josh Poimboeuf <jpoimboe@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Juergen Gross <jgross@suse.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Sasha Levin <sashal@kernel.org>,
	virtualization@lists.linux-foundation.org, kvm@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 35/37] x86/paravirt: Fix callee-saved function ELF sizes
Date: Fri, 26 Jul 2019 09:43:30 -0400	[thread overview]
Message-ID: <20190726134332.12626-35-sashal@kernel.org> (raw)
In-Reply-To: <20190726134332.12626-1-sashal@kernel.org>

From: Josh Poimboeuf <jpoimboe@redhat.com>

[ Upstream commit 083db6764821996526970e42d09c1ab2f4155dd4 ]

The __raw_callee_save_*() functions have an ELF symbol size of zero,
which confuses objtool and other tools.

Fixes a bunch of warnings like the following:

  arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_pte_val() is missing an ELF size annotation
  arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_pgd_val() is missing an ELF size annotation
  arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_make_pte() is missing an ELF size annotation
  arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_make_pgd() is missing an ELF size annotation

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/afa6d49bb07497ca62e4fc3b27a2d0cece545b4e.1563413318.git.jpoimboe@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/include/asm/paravirt.h | 1 +
 arch/x86/kernel/kvm.c           | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index c83a2f418cea..4471f0da6ed7 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -758,6 +758,7 @@ static __always_inline bool pv_vcpu_is_preempted(long cpu)
 	    PV_RESTORE_ALL_CALLER_REGS					\
 	    FRAME_END							\
 	    "ret;"							\
+	    ".size " PV_THUNK_NAME(func) ", .-" PV_THUNK_NAME(func) ";"	\
 	    ".popsection")
 
 /* Get a reference to a callee-save function */
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 652bdd867782..5853eb50138e 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -631,6 +631,7 @@ asm(
 "cmpb	$0, " __stringify(KVM_STEAL_TIME_preempted) "+steal_time(%rax);"
 "setne	%al;"
 "ret;"
+".size __raw_callee_save___kvm_vcpu_is_preempted, .-__raw_callee_save___kvm_vcpu_is_preempted;"
 ".popsection");
 
 #endif
-- 
2.20.1


  parent reply	other threads:[~2019-07-26 13:50 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-26 13:42 [PATCH AUTOSEL 4.14 01/37] ARM: riscpc: fix DMA Sasha Levin
2019-07-26 13:42 ` [PATCH AUTOSEL 4.14 02/37] ARM: dts: rockchip: Make rk3288-veyron-minnie run at hs200 Sasha Levin
2019-07-26 13:42 ` [PATCH AUTOSEL 4.14 03/37] ARM: dts: rockchip: Make rk3288-veyron-mickey's emmc work again Sasha Levin
2019-07-26 13:42 ` [PATCH AUTOSEL 4.14 04/37] ARM: dts: rockchip: Mark that the rk3288 timer might stop in suspend Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 05/37] ftrace: Enable trampoline when rec count returns back to one Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 06/37] kernel/module.c: Only return -EEXIST for modules that have finished loading Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 07/37] MIPS: lantiq: Fix bitfield masking Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 08/37] dmaengine: rcar-dmac: Reject zero-length slave DMA requests Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 09/37] clk: tegra210: fix PLLU and PLLU_OUT1 Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 10/37] fs/adfs: super: fix use-after-free bug Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 11/37] btrfs: fix minimum number of chunk errors for DUP Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 12/37] cifs: Fix a race condition with cifs_echo_request Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 13/37] ceph: fix improper use of smp_mb__before_atomic() Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 14/37] ceph: return -ERANGE if virtual xattr value didn't fit in buffer Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 15/37] ACPI: blacklist: fix clang warning for unused DMI table Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 16/37] scsi: zfcp: fix GCC compiler warning emitted with -Wmaybe-uninitialized Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 17/37] x86: kvm: avoid constant-conversion warning Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 18/37] ACPI: fix false-positive -Wuninitialized warning Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 19/37] ISDN: hfcsusb: checking idx of ep configuration Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 20/37] be2net: Signal that the device cannot transmit during reconfiguration Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 21/37] x86/apic: Silence -Wtype-limits compiler warnings Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 22/37] x86: math-emu: Hide clang warnings for 16-bit overflow Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 23/37] mm/cma.c: fail if fixed declaration can't be honored Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 24/37] coda: add error handling for fget Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 25/37] coda: fix build using bare-metal toolchain Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 26/37] uapi linux/coda_psdev.h: move upc_req definition from uapi to kernel side headers Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 27/37] drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 28/37] drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 29/37] ipc/mqueue.c: only perform resource calculation if user valid Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 30/37] floppy: fix div-by-zero in setup_format_params Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 31/37] floppy: fix out-of-bounds read in copy_buffer Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 32/37] xen: let alloc_xenballooned_pages() fail if not enough memory free Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 33/37] xen/pv: Fix a boot up hang revealed by int3 self test Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 34/37] x86/kvm: Don't call kvm_spurious_fault() from .fixup Sasha Levin
2019-07-26 13:43 ` Sasha Levin [this message]
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 36/37] x86, boot: Remove multiple copy of static function sanitize_boot_params() Sasha Levin
2019-07-26 13:43 ` [PATCH AUTOSEL 4.14 37/37] drm/nouveau: fix memory leak in nouveau_conn_reset() Sasha Levin

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