On Mon, Mar 25, 2019 at 01:14:25PM -0500, helgaas@xxxxxxxxxx wrote: > From: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> > > "__u32" and similar types are intended for things exported to user-space, > including structs used in ioctls; see include/uapi/asm-generic/int-l64.h. > > They are not needed for the CPER struct definitions, which not exported to > user-space and not used in ioctls. Replace them with the typical "u32" and > similar types. No functional change intended. > > The reason for changing this is to remove the question of "why do we use > __u32 here instead of u32?" We should use __u32 when there's a reason for > it; otherwise, we should prefer u32 for consistency. > > Reference: Documentation/process/coding-style.rst > Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> > CC: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> > CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> I cc'd you folks because you were part of this conversation: https://lore.kernel.org/lkml/1526350925-14922-3-git-send-email-yamada.masahiro@xxxxxxxxxxxxx/T/#u I *think* the conclusion there was that this sort of change makes sense, but I want to make sure. If it does make sense, I'm surprised at how much stuff in include/linux/ still uses __u32 when it doesn't appear to need it. > --- > include/linux/cper.h | 286 +++++++++++++++++++++---------------------- > 1 file changed, 143 insertions(+), 143 deletions(-) > > diff --git a/include/linux/cper.h b/include/linux/cper.h > index 2f361a96dc76..cc4980bb0f65 100644 > --- a/include/linux/cper.h > +++ b/include/linux/cper.h > @@ -323,214 +323,214 @@ enum { > /* Record Header, UEFI v2.7 sec N.2.1 */ > struct cper_record_header { > char signature[CPER_SIG_SIZE]; /* must be CPER_SIG_RECORD */ > - __u16 revision; /* must be CPER_RECORD_REV */ > - __u32 signature_end; /* must be CPER_SIG_END */ > - __u16 section_count; > - __u32 error_severity; > - __u32 validation_bits; > - __u32 record_length; > - __u64 timestamp; > + u16 revision; /* must be CPER_RECORD_REV */ > + u32 signature_end; /* must be CPER_SIG_END */ > + u16 section_count; > + u32 error_severity; > + u32 validation_bits; > + u32 record_length; > + u64 timestamp; > guid_t platform_id; > guid_t partition_id; > guid_t creator_id; > guid_t notification_type; > - __u64 record_id; > - __u32 flags; > - __u64 persistence_information; > - __u8 reserved[12]; /* must be zero */ > + u64 record_id; > + u32 flags; > + u64 persistence_information; > + u8 reserved[12]; /* must be zero */ > }; > > /* Section Descriptor, UEFI v2.7 sec N.2.2 */ > struct cper_section_descriptor { > - __u32 section_offset; /* Offset in bytes of the > + u32 section_offset; /* Offset in bytes of the > * section body from the base > * of the record header */ > - __u32 section_length; > - __u16 revision; /* must be CPER_RECORD_REV */ > - __u8 validation_bits; > - __u8 reserved; /* must be zero */ > - __u32 flags; > + u32 section_length; > + u16 revision; /* must be CPER_RECORD_REV */ > + u8 validation_bits; > + u8 reserved; /* must be zero */ > + u32 flags; > guid_t section_type; > guid_t fru_id; > - __u32 section_severity; > - __u8 fru_text[20]; > + u32 section_severity; > + u8 fru_text[20]; > }; > > /* Generic Processor Error Section, UEFI v2.7 sec N.2.4.1 */ > struct cper_sec_proc_generic { > - __u64 validation_bits; > - __u8 proc_type; > - __u8 proc_isa; > - __u8 proc_error_type; > - __u8 operation; > - __u8 flags; > - __u8 level; > - __u16 reserved; > - __u64 cpu_version; > + u64 validation_bits; > + u8 proc_type; > + u8 proc_isa; > + u8 proc_error_type; > + u8 operation; > + u8 flags; > + u8 level; > + u16 reserved; > + u64 cpu_version; > char cpu_brand[128]; > - __u64 proc_id; > - __u64 target_addr; > - __u64 requestor_id; > - __u64 responder_id; > - __u64 ip; > + u64 proc_id; > + u64 target_addr; > + u64 requestor_id; > + u64 responder_id; > + u64 ip; > }; > > /* IA32/X64 Processor Error Section, UEFI v2.7 sec N.2.4.2 */ > struct cper_sec_proc_ia { > - __u64 validation_bits; > - __u64 lapic_id; > - __u8 cpuid[48]; > + u64 validation_bits; > + u64 lapic_id; > + u8 cpuid[48]; > }; > > /* IA32/X64 Processor Error Information Structure, UEFI v2.7 sec N.2.4.2.1 */ > struct cper_ia_err_info { > guid_t err_type; > - __u64 validation_bits; > - __u64 check_info; > - __u64 target_id; > - __u64 requestor_id; > - __u64 responder_id; > - __u64 ip; > + u64 validation_bits; > + u64 check_info; > + u64 target_id; > + u64 requestor_id; > + u64 responder_id; > + u64 ip; > }; > > /* IA32/X64 Processor Context Information Structure, UEFI v2.7 sec N.2.4.2.2 */ > struct cper_ia_proc_ctx { > - __u16 reg_ctx_type; > - __u16 reg_arr_size; > - __u32 msr_addr; > - __u64 mm_reg_addr; > + u16 reg_ctx_type; > + u16 reg_arr_size; > + u32 msr_addr; > + u64 mm_reg_addr; > }; > > /* ARM Processor Error Section, UEFI v2.7 sec N.2.4.4 */ > struct cper_sec_proc_arm { > - __u32 validation_bits; > - __u16 err_info_num; /* Number of Processor Error Info */ > - __u16 context_info_num; /* Number of Processor Context Info Records*/ > - __u32 section_length; > - __u8 affinity_level; > - __u8 reserved[3]; /* must be zero */ > - __u64 mpidr; > - __u64 midr; > - __u32 running_state; /* Bit 0 set - Processor running. PSCI = 0 */ > - __u32 psci_state; > + u32 validation_bits; > + u16 err_info_num; /* Number of Processor Error Info */ > + u16 context_info_num; /* Number of Processor Context Info Records*/ > + u32 section_length; > + u8 affinity_level; > + u8 reserved[3]; /* must be zero */ > + u64 mpidr; > + u64 midr; > + u32 running_state; /* Bit 0 set - Processor running. PSCI = 0 */ > + u32 psci_state; > }; > > /* ARM Processor Error Information Structure, UEFI v2.7 sec N.2.4.4.1 */ > struct cper_arm_err_info { > - __u8 version; > - __u8 length; > - __u16 validation_bits; > - __u8 type; > - __u16 multiple_error; > - __u8 flags; > - __u64 error_info; > - __u64 virt_fault_addr; > - __u64 physical_fault_addr; > + u8 version; > + u8 length; > + u16 validation_bits; > + u8 type; > + u16 multiple_error; > + u8 flags; > + u64 error_info; > + u64 virt_fault_addr; > + u64 physical_fault_addr; > }; > > /* ARM Processor Context Information Structure, UEFI v2.7 sec N.2.4.4.2 */ > struct cper_arm_ctx_info { > - __u16 version; > - __u16 type; > - __u32 size; > + u16 version; > + u16 type; > + u32 size; > }; > > /* Old Memory Error Section, UEFI v2.1, v2.2 */ > struct cper_sec_mem_err_old { > - __u64 validation_bits; > - __u64 error_status; > - __u64 physical_addr; > - __u64 physical_addr_mask; > - __u16 node; > - __u16 card; > - __u16 module; > - __u16 bank; > - __u16 device; > - __u16 row; > - __u16 column; > - __u16 bit_pos; > - __u64 requestor_id; > - __u64 responder_id; > - __u64 target_id; > - __u8 error_type; > + u64 validation_bits; > + u64 error_status; > + u64 physical_addr; > + u64 physical_addr_mask; > + u16 node; > + u16 card; > + u16 module; > + u16 bank; > + u16 device; > + u16 row; > + u16 column; > + u16 bit_pos; > + u64 requestor_id; > + u64 responder_id; > + u64 target_id; > + u8 error_type; > }; > > /* Memory Error Section (UEFI >= v2.3), UEFI v2.7 sec N.2.5 */ > struct cper_sec_mem_err { > - __u64 validation_bits; > - __u64 error_status; > - __u64 physical_addr; > - __u64 physical_addr_mask; > - __u16 node; > - __u16 card; > - __u16 module; > - __u16 bank; > - __u16 device; > - __u16 row; > - __u16 column; > - __u16 bit_pos; > - __u64 requestor_id; > - __u64 responder_id; > - __u64 target_id; > - __u8 error_type; > - __u8 reserved; > - __u16 rank; > - __u16 mem_array_handle; /* "card handle" in UEFI 2.4 */ > - __u16 mem_dev_handle; /* "module handle" in UEFI 2.4 */ > + u64 validation_bits; > + u64 error_status; > + u64 physical_addr; > + u64 physical_addr_mask; > + u16 node; > + u16 card; > + u16 module; > + u16 bank; > + u16 device; > + u16 row; > + u16 column; > + u16 bit_pos; > + u64 requestor_id; > + u64 responder_id; > + u64 target_id; > + u8 error_type; > + u8 reserved; > + u16 rank; > + u16 mem_array_handle; /* "card handle" in UEFI 2.4 */ > + u16 mem_dev_handle; /* "module handle" in UEFI 2.4 */ > }; > > struct cper_mem_err_compact { > - __u64 validation_bits; > - __u16 node; > - __u16 card; > - __u16 module; > - __u16 bank; > - __u16 device; > - __u16 row; > - __u16 column; > - __u16 bit_pos; > - __u64 requestor_id; > - __u64 responder_id; > - __u64 target_id; > - __u16 rank; > - __u16 mem_array_handle; > - __u16 mem_dev_handle; > + u64 validation_bits; > + u16 node; > + u16 card; > + u16 module; > + u16 bank; > + u16 device; > + u16 row; > + u16 column; > + u16 bit_pos; > + u64 requestor_id; > + u64 responder_id; > + u64 target_id; > + u16 rank; > + u16 mem_array_handle; > + u16 mem_dev_handle; > }; > > /* PCI Express Error Section, UEFI v2.7 sec N.2.7 */ > struct cper_sec_pcie { > - __u64 validation_bits; > - __u32 port_type; > + u64 validation_bits; > + u32 port_type; > struct { > - __u8 minor; > - __u8 major; > - __u8 reserved[2]; > + u8 minor; > + u8 major; > + u8 reserved[2]; > } version; > - __u16 command; > - __u16 status; > - __u32 reserved; > + u16 command; > + u16 status; > + u32 reserved; > struct { > - __u16 vendor_id; > - __u16 device_id; > - __u8 class_code[3]; > - __u8 function; > - __u8 device; > - __u16 segment; > - __u8 bus; > - __u8 secondary_bus; > - __u16 slot; > - __u8 reserved; > + u16 vendor_id; > + u16 device_id; > + u8 class_code[3]; > + u8 function; > + u8 device; > + u16 segment; > + u8 bus; > + u8 secondary_bus; > + u16 slot; > + u8 reserved; > } device_id; > struct { > - __u32 lower; > - __u32 upper; > + u32 lower; > + u32 upper; > } serial_number; > struct { > - __u16 secondary_status; > - __u16 control; > + u16 secondary_status; > + u16 control; > } bridge; > - __u8 capability[60]; > - __u8 aer_info[96]; > + u8 capability[60]; > + u8 aer_info[96]; > }; > > /* Reset to default packing */ > -- > 2.21.0.392.gf8f6787159e-goog >
