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linux/drivers/edac
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Arnd Bergmann 398351dcdb EDAC/ie31200: work around false positive build warning 
[ Upstream commit c29dfd661f ]

gcc-14 produces a bogus warning in some configurations:

drivers/edac/ie31200_edac.c: In function 'ie31200_probe1.isra':
drivers/edac/ie31200_edac.c:412:26: error: 'dimm_info' is used uninitialized [-Werror=uninitialized]
  412 |         struct dimm_data dimm_info[IE31200_CHANNELS][IE31200_DIMMS_PER_CHANNEL];
      |                          ^~~~~~~~~
drivers/edac/ie31200_edac.c:412:26: note: 'dimm_info' declared here
  412 |         struct dimm_data dimm_info[IE31200_CHANNELS][IE31200_DIMMS_PER_CHANNEL];
      |                          ^~~~~~~~~

I don't see any way the unintialized access could really happen here,
but I can see why the compiler gets confused by the two loops.

Instead, rework the two nested loops to only read the addr_decode
registers and then keep only one instance of the dimm info structure.

[Tony: Qiuxu pointed out that the "populate DIMM info" comment was left
behind in the refactor and suggested moving it. I deleted the comment
as unnecessry in front os a call to populate_dimm_info(). That seems
pretty self-describing.]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/all/20250122065031.1321015-1-arnd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-06-04 14:42:07 +02:00
..
al_mc_edac.c EDAC/al_mc: Make use of the helper function devm_add_action_or_reset() 2021-09-28 18:35:11 +02:00
altera_edac.c EDAC/altera: Set DDR and SDMMC interrupt mask before registration 2025-05-09 09:43:50 +02:00
altera_edac.h EDAC/altera: Set DDR and SDMMC interrupt mask before registration 2025-05-09 09:43:50 +02:00
amd64_edac.c EDAC/amd64: Simplify ECC check on unified memory controllers 2024-12-27 13:58:50 +01:00
amd64_edac.h - Add initial support for RAS hardware found on AMD server GPUs (MI200). 2023-06-26 15:09:18 -07:00
amd76x_edac.c EDAC: Do not issue useless debug statements in the polling routine 2020-10-26 12:59:56 +01:00
amd8111_edac.c EDAC/amd81[13]1: Remove trailing newline from MODULE_AUTHOR 2023-03-28 15:26:52 +02:00
amd8111_edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
amd8131_edac.c EDAC/amd81[13]1: Remove trailing newline from MODULE_AUTHOR 2023-03-28 15:26:52 +02:00
amd8131_edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
armada_xp_edac.c EDAC: Check for GHES preference in the chipset-specific EDAC drivers 2022-10-21 22:09:54 +02:00
aspeed_edac.c EDAC/aspeed: Use proper format string for printing resource 2021-05-18 16:33:13 +02:00
bluefield_edac.c EDAC/bluefield: Fix potential integer overflow 2024-12-09 10:31:47 +01:00
cell_edac.c edac: rename edac_core.h to edac_mc.h 2016-12-15 08:54:51 -02:00
cpc925_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
debugfs.c ARM: 8892/1: EDAC: Add missing debugfs_create_x32 wrapper 2019-08-29 07:58:01 +01:00
dmc520_edac.c EDAC/dmc520: Don't print an error for each unconfigured interrupt line 2022-04-19 11:25:41 +02:00
e7xxx_edac.c EDAC: Sanitize MODULE_AUTHOR strings 2023-03-28 15:43:30 +02:00
e752x_edac.c EDAC: Sanitize MODULE_AUTHOR strings 2023-03-28 15:43:30 +02:00
edac_device.c EDAC/device: Respect any driver-supplied workqueue polling value 2023-01-19 11:43:16 +01:00
edac_device.h EDAC/device: Get rid of the silly one-shot memory allocation in edac_device_alloc_ctl_info() 2022-04-11 11:43:26 +02:00
edac_device_sysfs.c EDAC/sysfs: move to use bus_get_dev_root() 2023-03-22 09:25:49 +01:00
edac_mc.c EDAC/mc: Drop duplicated dimm->nr_pages debug printout 2022-09-01 08:52:18 +02:00
edac_mc.h EDAC/mc: Determine mci pointer from the error descriptor 2020-02-17 13:05:10 +01:00
edac_mc_sysfs.c EDAC/mc_sysfs: Increase legacy channel support to 12 2022-10-31 11:03:34 +01:00
edac_module.c treewide: Fix function prototypes for module_param_call() 2017-10-31 15:30:37 +01:00
edac_module.h EDAC/device: Fix period calculation in edac_device_reset_delay_period() 2022-12-30 15:51:41 +01:00
edac_pci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
edac_pci.h edac: move documentation from edac_pci*.c to edac_pci.h 2016-12-15 08:54:51 -02:00
edac_pci_sysfs.c EDAC/sysfs: move to use bus_get_dev_root() 2023-03-22 09:25:49 +01:00
fsl_ddr_edac.c EDAC/fsl_ddr: Fix bad bit shift operations 2024-12-09 10:31:47 +01:00
fsl_ddr_edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
ghes_edac.c EDAC/ghes: Make ghes_edac a proper module 2022-10-21 21:59:19 +02:00
highbank_l2_edac.c EDAC: Explicitly include correct DT includes 2023-08-28 13:31:01 -05:00
highbank_mc_edac.c EDAC: Explicitly include correct DT includes 2023-08-28 13:31:01 -05:00
i7core_edac.c * Add Amazon's Annapurna Labs memory controller EDAC driver, by Talel 2020-10-12 10:12:26 -07:00
i10nm_base.c EDAC/{skx_common,i10nm}: Fix some missing error reports on Emerald Rapids 2025-04-10 14:37:25 +02:00
i3000_edac.c EDAC: Do not issue useless debug statements in the polling routine 2020-10-26 12:59:56 +01:00
i3200_edac.c EDAC: Do not issue useless debug statements in the polling routine 2020-10-26 12:59:56 +01:00
i5000_edac.c EDAC: Sanitize MODULE_AUTHOR strings 2023-03-28 15:43:30 +02:00
i5100_edac.c EDAC: Sanitize MODULE_AUTHOR strings 2023-03-28 15:43:30 +02:00
i5400_edac.c EDAC/i5400: Fix typo in comment: vaious -> various 2022-11-25 19:29:02 +01:00
i7300_edac.c EDAC/i7300: Correct the i7300_exit() function name in comment 2022-09-23 23:07:17 +02:00
i82443bxgx_edac.c EDAC: Do not issue useless debug statements in the polling routine 2020-10-26 12:59:56 +01:00
i82860_edac.c EDAC: Sanitize MODULE_AUTHOR strings 2023-03-28 15:43:30 +02:00
i82875p_edac.c EDAC: Do not issue useless debug statements in the polling routine 2020-10-26 12:59:56 +01:00
i82975x_edac.c EDAC: Do not issue useless debug statements in the polling routine 2020-10-26 12:59:56 +01:00
ie31200_edac.c EDAC/ie31200: work around false positive build warning 2025-06-04 14:42:07 +02:00
igen6_edac.c EDAC/igen6: Avoid segmentation fault on module unload 2024-12-09 10:31:48 +01:00
Kconfig EDAC/npcm: Add NPCM memory controller driver 2023-06-12 15:14:10 +02:00
layerscape_edac.c EDAC: Sanitize MODULE_AUTHOR strings 2023-03-28 15:43:30 +02:00
Makefile EDAC, i10nm: make skx_common.o a separate module 2024-08-03 08:53:19 +02:00
mce_amd.c x86/MCE/AMD, EDAC/mce_amd: Decode UMC_V2 ECC errors 2023-06-05 12:27:11 +02:00
mce_amd.h x86/mce/amd, edac: Remove report_gart_errors 2020-04-14 15:53:46 +02:00
mpc85xx_edac.c EDAC: Explicitly include correct DT includes 2023-08-28 13:31:01 -05:00
mpc85xx_edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
npcm_edac.c EDAC: Explicitly include correct DT includes 2023-08-28 13:31:01 -05:00
octeon_edac-l2c.c edac: rename edac_core.h to edac_mc.h 2016-12-15 08:54:51 -02:00
octeon_edac-lmc.c EDAC, octeon: Fix an uninitialized variable warning 2017-11-27 11:57:26 +01:00
octeon_edac-pc.c edac: rename edac_core.h to edac_mc.h 2016-12-15 08:54:51 -02:00
octeon_edac-pci.c edac: rename edac_core.h to edac_mc.h 2016-12-15 08:54:51 -02:00
pasemi_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
pnd2_edac.c EDAC: Check for GHES preference in the chipset-specific EDAC drivers 2022-10-21 22:09:54 +02:00
pnd2_edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
ppc4xx_edac.c EDAC/ppc_4xx: Reorder symbols to get rid of a few forward declarations 2022-09-18 19:35:22 +02:00
ppc4xx_edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
qcom_edac.c EDAC/qcom: Correct interrupt enable register configuration 2025-02-27 04:10:53 -08:00
r82600_edac.c EDAC: Sanitize MODULE_AUTHOR strings 2023-03-28 15:43:30 +02:00
sb_edac.c EDAC: Check for GHES preference in the chipset-specific EDAC drivers 2022-10-21 22:09:54 +02:00
sifive_edac.c soc: sifive: ccache: Rename SiFive L2 cache to Composable cache. 2022-10-13 11:06:51 -07:00
skx_base.c EDAC/skx: Fix overflows on the DRAM row address mapping arrays 2023-03-13 10:42:00 -07:00
skx_common.c EDAC/{skx_common,i10nm}: Fix some missing error reports on Emerald Rapids 2025-04-10 14:37:25 +02:00
skx_common.h EDAC/{skx_common,i10nm}: Fix some missing error reports on Emerald Rapids 2025-04-10 14:37:25 +02:00
synopsys_edac.c EDAC/synopsys: Fix error injection on Zynq UltraScale+ 2024-10-04 16:28:49 +02:00
thunderx_edac.c EDAC/thunderx: Fix possible out-of-bounds string access 2024-01-25 15:35:12 -08:00
ti_edac.c EDAC/ti: Remove redundant error messages 2021-10-07 19:16:01 +02:00
wq.c EDAC/wq: Remove unneeded flush_workqueue() 2022-08-25 10:50:35 +02:00
x38_edac.c EDAC: Do not issue useless debug statements in the polling routine 2020-10-26 12:59:56 +01:00
xgene_edac.c EDAC: Check for GHES preference in the chipset-specific EDAC drivers 2022-10-21 22:09:54 +02:00
zynqmp_edac.c EDAC/zynqmp: Add EDAC support for Xilinx ZynqMP OCM 2023-01-09 11:13:58 +01:00