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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Jan 2026 11:36:58.1518 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 25a2909a-e5cc-4960-a618-08de5818386f X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: AM1PEPF000252E1.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS1PR08MB7658 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260120_033705_035896_3F6D969C X-CRM114-Status: GOOD ( 14.27 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org > On Mon, Jan 19, 2026 at 03:50:43PM +0000, Will Deacon wrote: > > On Sun, Dec 14, 2025 at 11:22:43AM +0000, Yeoreum Yun wrote: > > > > +config AS_HAS_LSUI > > > + def_bool $(as-instr,.arch_extension lsui) > > > + help > > > + Supported by LLVM 20+ and binutils 2.45+. > > > This is an internal Kconfig variable so please drop the help text. > > It would be useful to keep the information about supported compilers as > a comment though (as is done for some of the other toolchain feature > tests). With some comments from other thread, What about this? +menu "ARMv9.6 architectural features" + +config ARM64_LSUI + bool "Support Unprivileged Load Store Instructions (LSUI)" + default y + depends on AS_HAS_LSUI && !CPU_BIG_ENDIAN + help + The Unprivileged Load Store Instructions (LSUI) provides + variants load/store instructions that access user-space memory + from the kernel without clearing PSTATE.PAN bit. + + This feature is supported by LLVM 20+ and binutils 2.45+. + +endmenu # "ARMv9.6 architectural feature" + config AS_HAS_LSUI def_bool $(as-instr,.arch_extension lsui) - help - Supported by LLVM 20+ and binutils 2.45+. -- Sincerely, Yeoreum Yun