I recently submitted a patch series that re-factored some existing work that Huang Ying introduced adding support for accessing ACPI generic registers, backed by Memory Mapped I/O (MMIO), while within interrupt context: Original series: http://marc.info/?l=linux-acpi&m=128769263327206&w=2 Follow on series: http://marc.info/?l=linux-kernel&m=132070825520957&w=2 An underlying goal has been to re-factor ./drivers/acpi/atomicio.c into ./drivers/acpi/osl.c, providing equivalent functionality but in a more generalized manner, to allow usage in non-specific (i.e. APEI) contexts and remove atomicio.c. In the most recent follow on series, there ended up being additions to atomicio.c that coincided with the attempt to remove it and as such, the series final removal patch could not be taken without first pulling the additions into osl.c. The fact that the follow on series conversion patch - commit 700130b41f4 - was taken has inadvertently created regressions with respect to the recent atomicio.c additions due to the conversion patch effectively making atomicio.c obsolete. The additions were commit 04c25997c97 "ACPI, Add 64bit read/write support to atomicio on i386" and commit 76da3fb3575 "ACPI, Add RAM mapping support to ACPI atomic IO support". This patch series addresses both of these issues, bringing in the additional functionality into the re-factored files (apei-base.c and osl.c) and then again, reintroduces the patch to remove ./drivers/acpi/atomicio.[ch]. --- Myron Stowe (3): ACPI: Remove ./drivers/acpi/atomicio.[ch] ACPI, APEI: Add RAM mapping support to ACPI ACPI, APEI: Add 64-bit read/write support for APEI on i386 drivers/acpi/Makefile | 1 drivers/acpi/apei/apei-base.c | 35 --- drivers/acpi/atomicio.c | 422 ----------------------------------------- drivers/acpi/osl.c | 152 +++++++++++++++ include/acpi/acpiosxf.h | 4 include/acpi/atomicio.h | 10 - 6 files changed, 158 insertions(+), 466 deletions(-) delete mode 100644 drivers/acpi/atomicio.c delete mode 100644 include/acpi/atomicio.h -- -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html