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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/epapr_paravirt.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/epapr_paravirt.c')
-rw-r--r--arch/powerpc/kernel/epapr_paravirt.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/epapr_paravirt.c b/arch/powerpc/kernel/epapr_paravirt.c
index 2ed14d4a47f5..93b0f3ec8fb0 100644
--- a/arch/powerpc/kernel/epapr_paravirt.c
+++ b/arch/powerpc/kernel/epapr_paravirt.c
@@ -38,9 +38,9 @@ static int __init early_init_dt_scan_epapr(unsigned long node,
for (i = 0; i < (len / 4); i++) {
struct ppc_inst inst = ppc_inst(be32_to_cpu(insts[i]));
- patch_instruction((struct ppc_inst *)(epapr_hypercall_start + i), inst);
+ patch_instruction(epapr_hypercall_start + i, inst);
#if !defined(CONFIG_64BIT) || defined(CONFIG_PPC_BOOK3E_64)
- patch_instruction((struct ppc_inst *)(epapr_ev_idle_start + i), inst);
+ patch_instruction(epapr_ev_idle_start + i, inst);
#endif
}