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authorJakub Kicinski <kuba@kernel.org>2021-07-31 19:14:46 +0300
committerJakub Kicinski <kuba@kernel.org>2021-07-31 19:14:46 +0300
commitd2e11fd2b7fcd10b7bcef418c55490c934aa94e8 (patch)
treebdce7769cd4d69b375aad004e844d1a413863485 /arch/x86/net/bpf_jit_comp32.c
parentaae950b189413ed3201354600d44223da0bcf63c (diff)
parentc7d102232649226a69dddd58a4942cf13cff4f7c (diff)
downloadlinux-d2e11fd2b7fcd10b7bcef418c55490c934aa94e8.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicting commits, all resolutions pretty trivial: drivers/bus/mhi/pci_generic.c 5c2c85315948 ("bus: mhi: pci-generic: configurable network interface MRU") 56f6f4c4eb2a ("bus: mhi: pci_generic: Apply no-op for wake using sideband wake boolean") drivers/nfc/s3fwrn5/firmware.c a0302ff5906a ("nfc: s3fwrn5: remove unnecessary label") 46573e3ab08f ("nfc: s3fwrn5: fix undefined parameter values in dev_err()") 801e541c79bb ("nfc: s3fwrn5: fix undefined parameter values in dev_err()") MAINTAINERS 7d901a1e878a ("net: phy: add Maxlinear GPY115/21x/24x driver") 8a7b46fa7902 ("MAINTAINERS: add Yasushi SHOJI as reviewer for the Microchip CAN BUS Analyzer Tool driver") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/x86/net/bpf_jit_comp32.c')
-rw-r--r--arch/x86/net/bpf_jit_comp32.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/net/bpf_jit_comp32.c b/arch/x86/net/bpf_jit_comp32.c
index 3da88ded6ee3..3bfda5f502cb 100644
--- a/arch/x86/net/bpf_jit_comp32.c
+++ b/arch/x86/net/bpf_jit_comp32.c
@@ -1886,6 +1886,12 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image,
i++;
break;
}
+ /* speculation barrier */
+ case BPF_ST | BPF_NOSPEC:
+ if (boot_cpu_has(X86_FEATURE_XMM2))
+ /* Emit 'lfence' */
+ EMIT3(0x0F, 0xAE, 0xE8);
+ break;
/* ST: *(u8*)(dst_reg + off) = imm */
case BPF_ST | BPF_MEM | BPF_H:
case BPF_ST | BPF_MEM | BPF_B: