RISC-V updates for v5.3-rc3

Three minor RISC-V-related changes for v5.3-rc3:
 
 - Add build ID to VDSO builds to avoid a double-free in perf when
   libelf isn't used
 
 - Align the RV64 defconfig to the output of "make savedefconfig" so
   subsequent defconfig patches don't get out of hand
 
 - Drop a superfluous DT property from the FU540 SoC DT data (since it
   must be already set in board data that includes it)
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Merge tag 'riscv/for-v5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Paul Walmsley:
 "Three minor RISC-V-related changes for v5.3-rc3:

   - Add build ID to VDSO builds to avoid a double-free in perf when
     libelf isn't used

   - Align the RV64 defconfig to the output of "make savedefconfig" so
     subsequent defconfig patches don't get out of hand

   - Drop a superfluous DT property from the FU540 SoC DT data (since it
     must be already set in board data that includes it)"

* tag 'riscv/for-v5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: defconfig: align RV64 defconfig to the output of "make savedefconfig"
  riscv: dts: fu540-c000: drop "timebase-frequency"
  riscv: Fix perf record without libelf support

arch/riscv/boot/dts/sifive/fu540-c000.dtsi

@@ -21,7 +21,6 @@
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		timebase-frequency = <1000000>;
 		cpu0: cpu@0 {
 			compatible = "sifive,e51", "sifive,rocket0", "riscv";
 			device_type = "cpu";

arch/riscv/configs/defconfig

@@ -34,6 +34,7 @@ CONFIG_PCIEPORTBUS=y
 CONFIG_PCI_HOST_GENERIC=y
 CONFIG_PCIE_XILINX=y
 CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_VIRTIO_BLK=y
 CONFIG_BLK_DEV_SD=y
@@ -53,6 +54,8 @@ CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_SERIAL_EARLYCON_RISCV_SBI=y
 CONFIG_HVC_RISCV_SBI=y
+CONFIG_SPI=y
+CONFIG_SPI_SIFIVE=y
 # CONFIG_PTP_1588_CLOCK is not set
 CONFIG_DRM=y
 CONFIG_DRM_RADEON=y
@@ -66,8 +69,9 @@ CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_UAS=y
+CONFIG_MMC=y
+CONFIG_MMC_SPI=y
 CONFIG_VIRTIO_MMIO=y
-CONFIG_SPI_SIFIVE=y
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
 CONFIG_AUTOFS4_FS=y
@@ -83,8 +87,4 @@ CONFIG_ROOT_NFS=y
 CONFIG_CRYPTO_USER_API_HASH=y
 CONFIG_CRYPTO_DEV_VIRTIO=y
 CONFIG_PRINTK_TIME=y
-CONFIG_SPI=y
-CONFIG_MMC_SPI=y
-CONFIG_MMC=y
-CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_RCU_TRACE is not set

arch/riscv/kernel/vdso/Makefile

@@ -37,7 +37,7 @@ $(obj)/vdso.so.dbg: $(src)/vdso.lds $(obj-vdso) FORCE
 # these symbols in the kernel code rather than hand-coded addresses.
 
 SYSCFLAGS_vdso.so.dbg = -shared -s -Wl,-soname=linux-vdso.so.1 \
-	-Wl,--hash-style=both
+	-Wl,--build-id -Wl,--hash-style=both
 $(obj)/vdso-dummy.o: $(src)/vdso.lds $(obj)/rt_sigreturn.o FORCE
 	$(call if_changed,vdsold)