Commit ce66b21

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iprt: r0drv: linux: Do not call CLD instruction for newer kernels sinse it triggers objtool warning, bugref:10964.

svn:sync-xref-src-repo-rev: r170398

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Lines changed: 7 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-/* $Id: memuserkernel-r0drv-linux.c 110684 2025-08-11 17:18:47Z klaus.espenlaub@oracle.com $ */`
	`1`	`+/* $Id: memuserkernel-r0drv-linux.c 110871 2025-09-03 11:52:29Z vadim.galitsyn@oracle.com $ */`
`2`	`2`	`/** @file`
`3`	`3`	`* IPRT - User & Kernel Memory, Ring-0 Driver, Linux.`
`4`	`4`	`*/`
`@@ -149,7 +149,12 @@ static int rtR0MemKernelCopyLnxWorker(void pvDst, void const pvSrc, size_t cb)`
`149`	`149`	`if (!cb)`
`150`	`150`	`return VINF_SUCCESS;`
`151`	`151`
`152`		`- __asm__ __volatile__ ("cld\n"`
	`152`	`+ __asm__ __volatile__ (`
	`153`	`+/* Do not call CLD instruction for recent kernels since it triggers objtool`
	`154`	`+ warning, but play safe with older ones. */`
	`155`	`+# if RTLNX_VER_MAX(6,0,0)`
	`156`	`+ "cld\n"`
	`157`	`+# endif`
`153`	`158`	`"1:\n\t"`
`154`	`159`	`"rep; movsb\n"`
`155`	`160`	`"2:\n\t"`

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