From: Arnd Bergmann <[email protected]>
This function is now called from a few places that are no __init_or_module,
resulting a link time warning:
WARNING: modpost: vmlinux: section mismatch in reference: patch_dest+0x8a (section: .text) -> apply_relocation (section: .init.text)
Remove the annotation here.
Fixes: 17bce3b2ae2d ("x86/callthunks: Handle %rip-relative relocations in call thunk template")
Signed-off-by: Arnd Bergmann <[email protected]>
---
Not entire sure about this one, it does address the warning, but it
might be possible to find and change all the callers instead if they
fit the __init_or_module pattern.
---
arch/x86/kernel/alternative.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index d973bcf7db78..4a25642ab714 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -44,7 +44,7 @@ EXPORT_SYMBOL_GPL(alternatives_patched);
#define DA_ENDBR 0x08
#define DA_SMP 0x10
-static unsigned int __initdata_or_module debug_alternative;
+static unsigned int debug_alternative;
static int __init debug_alt(char *str)
{
@@ -206,7 +206,7 @@ static int skip_nops(u8 *instr, int offset, int len)
* Optimize a sequence of NOPs, possibly preceded by an unconditional jump
* to the end of the NOP sequence into a single NOP.
*/
-static bool __init_or_module
+static bool
__optimize_nops(u8 *instr, size_t len, struct insn *insn, int *next, int *prev, int *target)
{
int i = *next - insn->length;
@@ -325,7 +325,7 @@ bool need_reloc(unsigned long offset, u8 *src, size_t src_len)
return (target < src || target > src + src_len);
}
-void __init_or_module apply_relocation(u8 *buf, size_t len, u8 *dest, u8 *src, size_t src_len)
+void apply_relocation(u8 *buf, size_t len, u8 *dest, u8 *src, size_t src_len)
{
int prev, target = 0;
--
2.39.2
Hi Arnd,
kernel test robot noticed the following build warnings:
[auto build test WARNING on tip/master]
[also build test WARNING on tip/x86/percpu next-20231208]
[cannot apply to tip/auto-latest linus/master v6.7-rc4]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Arnd-Bergmann/x86-alternative-move-apply_relocation-out-of-init-section/20231204-153129
base: tip/master
patch link: https://lore.kernel.org/r/20231204072856.1033621-1-arnd%40kernel.org
patch subject: [PATCH] x86/alternative: move apply_relocation() out of init section
config: i386-allnoconfig (https://download.01.org/0day-ci/archive/20231209/[email protected]/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231209/[email protected]/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
All warnings (new ones prefixed by >>, old ones prefixed by <<):
WARNING: modpost: missing MODULE_DESCRIPTION() in vmlinux.o
>> WARNING: modpost: vmlinux: section mismatch in reference: __optimize_nops+0xa7 (section: .text) -> add_nop (section: .init.text)
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
The following commit has been merged into the x86/percpu branch of tip:
Commit-ID: 86ed430cf5296ca97a66f1f37e30b7dfe47cd36f
Gitweb: https://git.kernel.org/tip/86ed430cf5296ca97a66f1f37e30b7dfe47cd36f
Author: Arnd Bergmann <[email protected]>
AuthorDate: Mon, 04 Dec 2023 08:28:41 +01:00
Committer: Ingo Molnar <[email protected]>
CommitterDate: Tue, 19 Dec 2023 14:21:49 +01:00
x86/alternatives: Move apply_relocation() out of init section
This function is now called from a few places that are no __init_or_module,
resulting a link time warning:
WARNING: modpost: vmlinux: section mismatch in reference: patch_dest+0x8a (section: .text) -> apply_relocation (section: .init.text)
Remove the annotation here.
[ mingo: Also sync up add_nop() with these changes. ]
Fixes: 17bce3b2ae2d ("x86/callthunks: Handle %rip-relative relocations in call thunk template")
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Cc: Uros Bizjak <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
---
arch/x86/kernel/alternative.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 5052371..1781e02 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -44,7 +44,7 @@ EXPORT_SYMBOL_GPL(alternatives_patched);
#define DA_ENDBR 0x08
#define DA_SMP 0x10
-static unsigned int __initdata_or_module debug_alternative;
+static unsigned int debug_alternative;
static int __init debug_alt(char *str)
{
@@ -132,7 +132,7 @@ const unsigned char * const x86_nops[ASM_NOP_MAX+1] =
* each single-byte NOPs). If @len to fill out is > ASM_NOP_MAX, pad with INT3 and
* *jump* over instead of executing long and daft NOPs.
*/
-static void __init_or_module add_nop(u8 *instr, unsigned int len)
+static void add_nop(u8 *instr, unsigned int len)
{
u8 *target = instr + len;
@@ -206,7 +206,7 @@ static int skip_nops(u8 *instr, int offset, int len)
* Optimize a sequence of NOPs, possibly preceded by an unconditional jump
* to the end of the NOP sequence into a single NOP.
*/
-static bool __init_or_module
+static bool
__optimize_nops(u8 *instr, size_t len, struct insn *insn, int *next, int *prev, int *target)
{
int i = *next - insn->length;
@@ -325,7 +325,7 @@ bool need_reloc(unsigned long offset, u8 *src, size_t src_len)
return (target < src || target > src + src_len);
}
-void __init_or_module apply_relocation(u8 *buf, size_t len, u8 *dest, u8 *src, size_t src_len)
+void apply_relocation(u8 *buf, size_t len, u8 *dest, u8 *src, size_t src_len)
{
int prev, target = 0;