kernel/linux.git/drivers/firmware/google/memconsole.c, branch v6.19.11

sysfs: treewide: switch back to bin_attribute::read()/write()

2025-06-17T08:44:13+00:00

The bin_attribute argument of bin_attribute::read() is now const. This makes the _new() callbacks unnecessary. Switch all users back. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20250530-sysfs-const-bin_attr-final-v3-3-724bfcf05b99@weissschuh.net Signed-off-by: Greg Kroah-Hartman

firmware: google: memconsole: Use const 'struct bin_attribute' callback

2024-12-17T03:59:31+00:00

The sysfs core now provides callback variants that explicitly take a const pointer. Use them so the non-const variants can be removed. Signed-off-by: Thomas Weißschuh Acked-by: Brian Norris Link: https://lore.kernel.org/r/20241215-sysfs-const-bin_attr-google-v1-3-e5c2808f5833@weissschuh.net Signed-off-by: Tzung-Bi Shih

firmware: google: add missing MODULE_DESCRIPTION() macros

2024-06-11T03:34:05+00:00

make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/firmware/google/gsmi.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/firmware/google/coreboot_table.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/firmware/google/framebuffer-coreboot.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/firmware/google/memconsole.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/firmware/google/memconsole-coreboot.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/firmware/google/memconsole-x86-legacy.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/firmware/google/cbmem.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/firmware/google/vpd-sysfs.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson Link: https://lore.kernel.org/r/20240605-md-drivers-firmware-google-v1-1-18878de97fa5@quicinc.com Signed-off-by: Tzung-Bi Shih

Merge 5.2-rc4 into char-misc-next

2019-06-09T07:11:21+00:00

We want the char/misc driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 287

2019-06-05T15:36:37+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license v2 0 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 23 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.115786599@linutronix.de Signed-off-by: Greg Kroah-Hartman

firmware: google: coreboot: Drop unnecessary headers

2019-05-24T18:55:04+00:00

These headers aren't used by the files they're included in, so drop them. The memconsole file uses memremap() though, so include io.h there so that the include is explicit. Cc: Wei-Ning Huang Cc: Julius Werner Cc: Brian Norris Cc: Samuel Holland Cc: Guenter Roeck Signed-off-by: Stephen Boyd Reviewed-by: Julius Werner Reviewed-by: Samuel Holland Signed-off-by: Greg Kroah-Hartman

firmware: google: memconsole: Drop global func pointer

2019-05-24T18:55:04+00:00

We can store this function pointer directly in the bin_attribute structure's private field. Do this to save one global pointer. Cc: Wei-Ning Huang Cc: Julius Werner Cc: Brian Norris Cc: Samuel Holland Cc: Guenter Roeck Signed-off-by: Stephen Boyd Reviewed-by: Julius Werner Reviewed-by: Samuel Holland Signed-off-by: Greg Kroah-Hartman

firmware: google: memconsole: Make memconsole interface more flexible

2017-05-18T14:59:06+00:00

This patch redesigns the interface between the generic memconsole driver and its implementations to become more flexible than a flat memory buffer with unchanging bounds. This allows memconsoles like coreboot's to include lines that were added by runtime firmware after the driver was initialized. Since the console log size is thus no longer static, this means that the /sys/firmware/log file has to become unseekable. Signed-off-by: Julius Werner Signed-off-by: Greg Kroah-Hartman

firmware: google memconsole: Move specific EBDA parts

2017-04-08T16:05:36+00:00

This patch splits memconsole.c in 2 parts. One containing the architecture-independent part and the other one containing the EBDA specific part. This prepares the integration of coreboot support for the memconsole. The memconsole driver is now named as memconsole-x86-legacy. Signed-off-by: Thierry Escande Signed-off-by: Greg Kroah-Hartman

firmware: google memconsole driver fixes

2014-02-15T19:30:28+00:00

The google memconsole driver is currently broken upstream, as it tries to read memory that is described as reserved in /proc/iomem, by dereferencing a pointer obtained through phys_to_virt(). This triggers a kernel fault as such regions are unmapped after early boot. The proper workaround is to use ioremap_cache() / iounmap() around such accesses. As some unrelated changes, I also converted some printks to use pr_info() and added some missing __init annotations. Tested: booted dbg build, verified I could read /sys/firmware/log Signed-off-by: Michel Lespinasse Acked-by: Mike Waychison Signed-off-by: Greg Kroah-Hartman