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authorChristophe Leroy <christophe.leroy@csgroup.eu>2021-05-20 13:50:45 +0000
committerMichael Ellerman <mpe@ellerman.id.au>2021-06-17 00:09:00 +1000
commit69d4d6e5fd9f4e805280ad831932c3df7b9d7cc7 (patch)
tree43fa12d74a15e793166972f23562a01d6f8637e3 /arch/powerpc/kernel/mce_power.c
parente90a21ea801d1776d9a786ad02354fd3fe23ce09 (diff)
powerpc: Don't use 'struct ppc_inst' to reference instruction location
'struct ppc_inst' is an internal representation of an instruction, but in-memory instructions are and will remain a table of 'u32' forever. Replace all 'struct ppc_inst *' used for locating an instruction in memory by 'u32 *'. This removes a lot of undue casts to 'struct ppc_inst *'. It also helps locating ab-use of 'struct ppc_inst' dereference. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> [mpe: Fix ppc_inst_next(), use u32 instead of unsigned int] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/7062722b087228e42cbd896e39bfdf526d6a340a.1621516826.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/mce_power.c')
-rw-r--r--arch/powerpc/kernel/mce_power.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index 667104d4c455..7b76a9bf324f 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -463,7 +463,7 @@ static int mce_find_instr_ea_and_phys(struct pt_regs *regs, uint64_t *addr,
pfn = addr_to_pfn(regs, regs->nip);
if (pfn != ULONG_MAX) {
instr_addr = (pfn << PAGE_SHIFT) + (regs->nip & ~PAGE_MASK);
- instr = ppc_inst_read((struct ppc_inst *)instr_addr);
+ instr = ppc_inst_read((u32 *)instr_addr);
if (!analyse_instr(&op, &tmp, instr)) {
pfn = addr_to_pfn(regs, op.ea);
*addr = op.ea;