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Jan Hendrik Farr 5540869a3f Compiler Attributes: disable __counted_by for clang < 19.1.3 
commit f06e108a3d upstream.

This patch disables __counted_by for clang versions < 19.1.3 because
of the two issues listed below. It does this by introducing
CONFIG_CC_HAS_COUNTED_BY.

1. clang < 19.1.2 has a bug that can lead to __bdos returning 0:
https://github.com/llvm/llvm-project/pull/110497

2. clang < 19.1.3 has a bug that can lead to __bdos being off by 4:
https://github.com/llvm/llvm-project/pull/112636

Fixes: c8248faf3c ("Compiler Attributes: counted_by: Adjust name and identifier expansion")
Cc: stable@vger.kernel.org # 6.6.x: 16c31dd7fd: Compiler Attributes: counted_by: bump min gcc version
Cc: stable@vger.kernel.org # 6.6.x: 2993eb7a8d: Compiler Attributes: counted_by: fixup clang URL
Cc: stable@vger.kernel.org # 6.6.x: 231dc3f0c9: lkdtm/bugs: Improve warning message for compilers without counted_by support
Cc: stable@vger.kernel.org # 6.6.x
Reported-by: Nathan Chancellor <nathan@kernel.org>
Closes: https://lore.kernel.org/all/20240913164630.GA4091534@thelio-3990X/
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202409260949.a1254989-oliver.sang@intel.com
Link: https://lore.kernel.org/all/Zw8iawAF5W2uzGuh@archlinux/T/#m204c09f63c076586a02d194b87dffc7e81b8de7b
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Jan Hendrik Farr <kernel@jfarr.cc>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://lore.kernel.org/r/20241029140036.577804-2-kernel@jfarr.cc
Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Jan Hendrik Farr <kernel@jfarr.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-12-09 10:32:46 +01:00
..
acpi ACPI: CPPC: Make rmw_lock a raw_spin_lock 2024-11-08 16:28:20 +01:00
asm-generic vmlinux.lds.h: catch .bss..L* sections into BSS") 2024-08-03 08:53:35 +02:00
clocksource pwm: xilinx: Fix u32 overflow issue in 32-bit width PWM mode. 2024-09-08 07:54:44 +02:00
crypto crypto: simd - Do not call crypto_alloc_tfm during registration 2024-10-10 11:57:26 +02:00
drm drm/printer: Allow NULL data in devcoredump printer 2024-10-10 11:57:36 +02:00
dt-bindings dt-bindings: clock: qcom: Add GPLL9 support on gcc-sc8180x 2024-10-10 11:58:04 +02:00
keys integrity: PowerVM support for loading third party code signing keys 2023-08-17 20:12:35 +00:00
kunit - An extensive rework of kexec and crash Kconfig from Eric DeVolder 2023-08-29 14:53:51 -07:00
kvm KVM: arm64: Fix host-programmed guest events in nVHE 2024-04-10 16:35:48 +02:00
linux Compiler Attributes: disable __counted_by for clang < 19.1.3 2024-12-09 10:32:46 +01:00
math-emu powerpc/math-emu: Remove -w build flag and fix warnings 2022-09-05 17:28:25 +10:00
media media: cec: core: avoid recursive cec_claim_log_addrs 2024-06-12 11:12:43 +02:00
memory memory: renesas-rpc-if: Remove Runtime PM wrappers 2023-01-23 11:48:00 +01:00
misc cxl: fix typo in comment 2022-11-24 23:12:19 +11:00
net net: use unrcu_pointer() helper 2024-12-09 10:32:10 +01:00
pcmcia ARM: pxa/sa1100: move I/O space to PCI_IOBASE 2022-05-07 22:56:17 +02:00
ras mm, hwpoison: enable memory error handling on 1GB hugepage 2022-08-08 18:06:44 -07:00
rdma RDMA/core: Fix umem iterator when PAGE_SIZE is greater then HCA pgsz 2023-12-13 18:45:16 +01:00
rv rv: Set variable 'da_mon_##name' to static 2023-09-01 21:00:00 -04:00
scsi scsi: Remove scsi device no_start_on_resume flag 2024-10-17 15:24:11 +02:00
soc net: mscc: ocelot: serialize access to the injection/extraction groups 2024-08-29 17:33:45 +02:00
sound ASoC: tas2781: mark dvc_tlv with __maybe_unused 2024-10-17 15:24:11 +02:00
target scsi: target: iscsi: Remove the unused netif_timeout attribute 2023-07-11 12:33:32 -04:00
trace rxrpc: Fix missing locking causing hanging calls 2024-11-14 13:19:32 +01:00
uapi netlink: typographical error in nlmsg_type constants definition 2024-12-09 10:32:08 +01:00
ufs scsi: ufs: core: Check LSDBS cap when !mcq 2024-09-08 07:54:29 +02:00
vdso vdso/bits.h: Add BIT_ULL() for the sake of consistency 2023-01-31 14:42:10 +01:00
video fbdev: stifb: Make the STI next font pointer a 32-bit signed offset 2023-11-28 17:19:58 +00:00
xen xen/events: reduce externally visible helper functions 2024-03-01 13:34:57 +01:00