[PATCH 3/3] acpi, nfit: kill ACPI_NFIT_DEBUG, switch to dynamic_hex_dump()

[Dan Williams]

Inevitably when one actually needs to debug a DSM issue it's on a
distribution kernel that has CONFIG_ACPI_NFIT_DEBUG=n. The config symbol
is only there to avoid the compile error due to the missing fallback for
print_hex_dump_debug in the CONFIG_DYNAMIC_DEBUG=n case. Now that the
compile error is fixed the nfit driver can call dynamic_hex_dump()
directly, and enable debug of unmodified distro kernels.

Signed-off-by: Dan Williams 
---
 drivers/acpi/nfit/Kconfig |   12 
 drivers/acpi/nfit/core.c  |   21 -
 2 files changed, 8 insertions(+), 25 deletions(-)

diff --git a/drivers/acpi/nfit/Kconfig b/drivers/acpi/nfit/Kconfig
index dd0d53c52552..6d3351452ea2 100644
--- a/drivers/acpi/nfit/Kconfig
+++ b/drivers/acpi/nfit/Kconfig
@@ -12,15 +12,3 @@ config ACPI_NFIT
 
  To compile this driver as a module, choose M here:
  the module will be called nfit.
-
-config ACPI_NFIT_DEBUG
-   bool "NFIT DSM debug"
-   depends on ACPI_NFIT
-   depends on DYNAMIC_DEBUG
-   default n
-   help
- Enabling this option causes the nfit driver to dump the
- input and output buffers of _DSM operations on the ACPI0012
- device and its children.  This can be very verbose, so leave
- it disabled unless you are debugging a hardware / firmware
- issue.
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 261eea1d2906..ca391a2cbe63 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -268,14 +268,11 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, 
struct nvdimm *nvdimm,
in_buf.buffer.length = call_pkg->nd_size_in;
}
 
-   if (IS_ENABLED(CONFIG_ACPI_NFIT_DEBUG)) {
-   dev_dbg(dev, "%s:%s cmd: %d: func: %d input length: %d\n",
-   __func__, dimm_name, cmd, func,
-   in_buf.buffer.length);
-   print_hex_dump_debug("nvdimm in  ", DUMP_PREFIX_OFFSET, 4, 4,
+   dev_dbg(dev, "%s:%s cmd: %d: func: %d input length: %d\n",
+   __func__, dimm_name, cmd, func, in_buf.buffer.length);
+   dynamic_hex_dump("nvdimm in  ", DUMP_PREFIX_OFFSET, 4, 4,
in_buf.buffer.pointer,
min_t(u32, 256, in_buf.buffer.length), true);
-   }
 
out_obj = acpi_evaluate_dsm(handle, uuid, 1, func, _obj);
if (!out_obj) {
@@ -307,13 +304,11 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, 
struct nvdimm *nvdimm,
goto out;
}
 
-   if (IS_ENABLED(CONFIG_ACPI_NFIT_DEBUG)) {
-   dev_dbg(dev, "%s:%s cmd: %s output length: %d\n", __func__,
-   dimm_name, cmd_name, out_obj->buffer.length);
-   print_hex_dump_debug(cmd_name, DUMP_PREFIX_OFFSET, 4,
-   4, out_obj->buffer.pointer, min_t(u32, 128,
-   out_obj->buffer.length), true);
-   }
+   dev_dbg(dev, "%s:%s cmd: %s output length: %d\n", __func__, dimm_name,
+   cmd_name, out_obj->buffer.length);
+   dynamic_hex_dump(cmd_name, DUMP_PREFIX_OFFSET, 4, 4,
+   out_obj->buffer.pointer,
+   min_t(u32, 128, out_obj->buffer.length), true);
 
for (i = 0, offset = 0; i < desc->out_num; i++) {
u32 out_size = nd_cmd_out_size(nvdimm, cmd, desc, i, buf,

[PATCH 3/3] acpi, nfit: kill ACPI_NFIT_DEBUG, switch to dynamic_hex_dump()

[Dan Williams]

Inevitably when one actually needs to debug a DSM issue it's on a
distribution kernel that has CONFIG_ACPI_NFIT_DEBUG=n. The config symbol
is only there to avoid the compile error due to the missing fallback for
print_hex_dump_debug in the CONFIG_DYNAMIC_DEBUG=n case. Now that the
compile error is fixed the nfit driver can call dynamic_hex_dump()
directly, and enable debug of unmodified distro kernels.

Signed-off-by: Dan Williams 
---
 drivers/acpi/nfit/Kconfig |   12 
 drivers/acpi/nfit/core.c  |   21 -
 2 files changed, 8 insertions(+), 25 deletions(-)

diff --git a/drivers/acpi/nfit/Kconfig b/drivers/acpi/nfit/Kconfig
index dd0d53c52552..6d3351452ea2 100644
--- a/drivers/acpi/nfit/Kconfig
+++ b/drivers/acpi/nfit/Kconfig
@@ -12,15 +12,3 @@ config ACPI_NFIT
 
  To compile this driver as a module, choose M here:
  the module will be called nfit.
-
-config ACPI_NFIT_DEBUG
-   bool "NFIT DSM debug"
-   depends on ACPI_NFIT
-   depends on DYNAMIC_DEBUG
-   default n
-   help
- Enabling this option causes the nfit driver to dump the
- input and output buffers of _DSM operations on the ACPI0012
- device and its children.  This can be very verbose, so leave
- it disabled unless you are debugging a hardware / firmware
- issue.
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 261eea1d2906..ca391a2cbe63 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -268,14 +268,11 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, 
struct nvdimm *nvdimm,
in_buf.buffer.length = call_pkg->nd_size_in;
}
 
-   if (IS_ENABLED(CONFIG_ACPI_NFIT_DEBUG)) {
-   dev_dbg(dev, "%s:%s cmd: %d: func: %d input length: %d\n",
-   __func__, dimm_name, cmd, func,
-   in_buf.buffer.length);
-   print_hex_dump_debug("nvdimm in  ", DUMP_PREFIX_OFFSET, 4, 4,
+   dev_dbg(dev, "%s:%s cmd: %d: func: %d input length: %d\n",
+   __func__, dimm_name, cmd, func, in_buf.buffer.length);
+   dynamic_hex_dump("nvdimm in  ", DUMP_PREFIX_OFFSET, 4, 4,
in_buf.buffer.pointer,
min_t(u32, 256, in_buf.buffer.length), true);
-   }
 
out_obj = acpi_evaluate_dsm(handle, uuid, 1, func, _obj);
if (!out_obj) {
@@ -307,13 +304,11 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, 
struct nvdimm *nvdimm,
goto out;
}
 
-   if (IS_ENABLED(CONFIG_ACPI_NFIT_DEBUG)) {
-   dev_dbg(dev, "%s:%s cmd: %s output length: %d\n", __func__,
-   dimm_name, cmd_name, out_obj->buffer.length);
-   print_hex_dump_debug(cmd_name, DUMP_PREFIX_OFFSET, 4,
-   4, out_obj->buffer.pointer, min_t(u32, 128,
-   out_obj->buffer.length), true);
-   }
+   dev_dbg(dev, "%s:%s cmd: %s output length: %d\n", __func__, dimm_name,
+   cmd_name, out_obj->buffer.length);
+   dynamic_hex_dump(cmd_name, DUMP_PREFIX_OFFSET, 4, 4,
+   out_obj->buffer.pointer,
+   min_t(u32, 128, out_obj->buffer.length), true);
 
for (i = 0, offset = 0; i < desc->out_num; i++) {
u32 out_size = nd_cmd_out_size(nvdimm, cmd, desc, i, buf,