| Message ID | 20231016072604.40179-6-gmazyland@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | usb-storage,uas: Support OPAL commands on USB attached devices. | expand |
On Mon, Oct 16, 2023 at 09:26:02AM +0200, Milan Broz wrote: > This patch optimizes the previous one for 64-bit platforms, What is "previous one"? We don't know that when we go and look at the changelog in the future. > where > unsigned long is 64-bit, so we do not need to convert quirk flags > to 32-bit index. > > Signed-off-by: Milan Broz <gmazyland@gmail.com> Why not just do it properly the first time? You are fixing up a patch that you added, which should not be needed. thanks, greg k-h
On Mon, Oct 16, 2023 at 09:26:02AM +0200, Milan Broz wrote: > This patch optimizes the previous one for 64-bit platforms, where > unsigned long is 64-bit, so we do not need to convert quirk flags > to 32-bit index. > > Signed-off-by: Milan Broz <gmazyland@gmail.com> > --- > drivers/usb/storage/Makefile | 3 +++ > drivers/usb/storage/mkflags.c | 9 +++++++++ > drivers/usb/storage/usb-ids.h | 4 ++++ > 3 files changed, 16 insertions(+) > > diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile > index 612678f108d0..62ebaa76ef95 100644 > --- a/drivers/usb/storage/Makefile > +++ b/drivers/usb/storage/Makefile > @@ -57,6 +57,9 @@ $(obj)/usual-tables.o: $(obj)/usb-ids.c > $(obj)/uas.o: $(obj)/usb-ids-uas.c > clean-files := usb-ids.c usb-ids-uas.c > HOSTCFLAGS_mkflags.o := -I $(srctree)/include/ > +ifdef CONFIG_64BIT > +HOSTCFLAGS_mkflags.o += -D CONFIG_64BIT > +endif > hostprogs += mkflags > > quiet_cmd_mkflag_storage = FLAGS $@ > diff --git a/drivers/usb/storage/mkflags.c b/drivers/usb/storage/mkflags.c > index 2514ffef0154..08c37d2e52d6 100644 > --- a/drivers/usb/storage/mkflags.c > +++ b/drivers/usb/storage/mkflags.c > @@ -89,11 +89,15 @@ static struct svals vals[] = { > > static unsigned long get_device_info(uint64_t flags, unsigned int idx) > { > +#ifndef CONFIG_64BIT > if (flags < HI32) > return (unsigned long)flags; > > /* Use index that will be processed in usb_stor_di2flags */ > return HI32 + idx; > +#else > + return flags; > +#endif Please try to keep #ifdef out of .c files, it makes maintenance a real pain and is not the kernel coding style at all. thanks, greg k-h
diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile index 612678f108d0..62ebaa76ef95 100644 --- a/drivers/usb/storage/Makefile +++ b/drivers/usb/storage/Makefile @@ -57,6 +57,9 @@ $(obj)/usual-tables.o: $(obj)/usb-ids.c $(obj)/uas.o: $(obj)/usb-ids-uas.c clean-files := usb-ids.c usb-ids-uas.c HOSTCFLAGS_mkflags.o := -I $(srctree)/include/ +ifdef CONFIG_64BIT +HOSTCFLAGS_mkflags.o += -D CONFIG_64BIT +endif hostprogs += mkflags quiet_cmd_mkflag_storage = FLAGS $@ diff --git a/drivers/usb/storage/mkflags.c b/drivers/usb/storage/mkflags.c index 2514ffef0154..08c37d2e52d6 100644 --- a/drivers/usb/storage/mkflags.c +++ b/drivers/usb/storage/mkflags.c @@ -89,11 +89,15 @@ static struct svals vals[] = { static unsigned long get_device_info(uint64_t flags, unsigned int idx) { +#ifndef CONFIG_64BIT if (flags < HI32) return (unsigned long)flags; /* Use index that will be processed in usb_stor_di2flags */ return HI32 + idx; +#else + return flags; +#endif } static void print_class(uint8_t bDeviceSubClass, uint8_t bDeviceProtocol) @@ -123,6 +127,10 @@ static void print_type(unsigned int type) static void print_usb_flags(const char *type) { +#ifdef CONFIG_64BIT + printf("const u64 usb_%s_di_to_u64[] = {};\n", type); + printf("const unsigned long usb_%s_di_idx_size = 0;\n\n", type); +#else int i, count; printf("const u64 usb_%s_di_to_u64[] = {\n", type); @@ -134,6 +142,7 @@ static void print_usb_flags(const char *type) } printf("};\n\n"); printf("const unsigned long usb_%s_di_idx_size = %i;\n\n", type, count); +#endif } static void print_usb_storage(void) diff --git a/drivers/usb/storage/usb-ids.h b/drivers/usb/storage/usb-ids.h index 8bfd84e07f96..4abe1a6d3a66 100644 --- a/drivers/usb/storage/usb-ids.h +++ b/drivers/usb/storage/usb-ids.h @@ -15,6 +15,9 @@ extern const u64 usb_uas_di_to_u64[]; static u64 usb_stor_di2flags(const u64 *di_to_u64, unsigned long idx_size, unsigned long idx) { +#if IS_ENABLED(CONFIG_64BIT) + return idx; +#else u64 flags = 0; if (idx < (1UL << 31)) @@ -28,6 +31,7 @@ static u64 usb_stor_di2flags(const u64 *di_to_u64, WARN_ONCE(true, "usb_stor_di_to_u64 table not updated"); return flags; +#endif } #endif
This patch optimizes the previous one for 64-bit platforms, where unsigned long is 64-bit, so we do not need to convert quirk flags to 32-bit index. Signed-off-by: Milan Broz <gmazyland@gmail.com> --- drivers/usb/storage/Makefile | 3 +++ drivers/usb/storage/mkflags.c | 9 +++++++++ drivers/usb/storage/usb-ids.h | 4 ++++ 3 files changed, 16 insertions(+)