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| author | Helge Deller <deller@gmx.de> | 2023-11-20 23:14:39 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-08 08:51:15 +0100 |
| commit | 2acfff573042fd521cd65bb0365658eb37ff8896 (patch) | |
| tree | bcab3c05b56cca240e7b06e81ab1bbcf0572e253 /arch/parisc | |
| parent | 3793cd2ded7cd33a431a6764f1d13be30ac15d52 (diff) | |
| download | linux-2acfff573042fd521cd65bb0365658eb37ff8896.tar.gz linux-2acfff573042fd521cd65bb0365658eb37ff8896.tar.bz2 linux-2acfff573042fd521cd65bb0365658eb37ff8896.zip | |
parisc: Mark jump_table naturally aligned
commit 07eecff8ae78df7f28800484d31337e1f9bfca3a upstream.
The jump_table stores two 32-bit words and one 32- (on 32-bit kernel)
or one 64-bit word (on 64-bit kernel).
Ensure that the last word is always 64-bit aligned on a 64-bit kernel
by aligning the whole structure on sizeof(long).
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/include/asm/jump_label.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/parisc/include/asm/jump_label.h b/arch/parisc/include/asm/jump_label.h index af2a598bc0f8..94428798b6aa 100644 --- a/arch/parisc/include/asm/jump_label.h +++ b/arch/parisc/include/asm/jump_label.h @@ -15,10 +15,12 @@ static __always_inline bool arch_static_branch(struct static_key *key, bool bran asm_volatile_goto("1:\n\t" "nop\n\t" ".pushsection __jump_table, \"aw\"\n\t" + ".align %1\n\t" ".word 1b - ., %l[l_yes] - .\n\t" __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" ".popsection\n\t" - : : "i" (&((char *)key)[branch]) : : l_yes); + : : "i" (&((char *)key)[branch]), "i" (sizeof(long)) + : : l_yes); return false; l_yes: @@ -30,10 +32,12 @@ static __always_inline bool arch_static_branch_jump(struct static_key *key, bool asm_volatile_goto("1:\n\t" "b,n %l[l_yes]\n\t" ".pushsection __jump_table, \"aw\"\n\t" + ".align %1\n\t" ".word 1b - ., %l[l_yes] - .\n\t" __stringify(ASM_ULONG_INSN) " %c0 - .\n\t" ".popsection\n\t" - : : "i" (&((char *)key)[branch]) : : l_yes); + : : "i" (&((char *)key)[branch]), "i" (sizeof(long)) + : : l_yes); return false; l_yes: |