Re: [PATCH v2 RESEND 0/2] mtd: Harmonize implementations of OTP write and _get_{fact, user}_prot_info
Hi, --On January 28, 2014 09:29 +0100 Christian Riesch wrote: Hi all, In the discussion on my patchset for the OTP support for drivers/mtd/chips/cfi_cmdset_0002.c [1-5], Artem requested two changes in the current code of the OTP write functions and the _get_{fact,user}_prot_info code. These two patches are an attempt to make the requested changes. The first patch adds a retlen parameter to the _get_fact_prot_info and _get_user_prot_info functions and thus harmonizes the implementation with those of the write and read functions. The second patch fixes a problem that I earlier addressed in [1]. After the discussion about this patch on the mtd mailing list, I think that the correct behavior of the write function should be the one specified in [6]: Try to write as many bytes as possible and return the number of bytes that were written. If no data could be written due to lack of OTP memory, return -ENOSPC. Artem, would you please have a look at these patches? I would like to know if I understood you correctly, or if I missed something here. Please note that I cannot test these patches since I do not have the hardware. The patches are compile tested only. If these patches are ok, I will also respin the OTP support patches for cfi_cmdset_0002. Sorry for bugging you (Artem, mtd Maintainers) again, but I would really like to get this patchset ([a], [b]) and the OTP support for cfi_cmdset_0002.c into mainline. Please have a look at the patches and just tell me if the changes in them are acceptable, or if I should rather post the OTP support without these two patches. Once I have your answer, I will respin these patches and my OTP patches, test them again, and submit them. But without your help I cannot continue. [a] http://patchwork.ozlabs.org/patch/314624/ [b] http://patchwork.ozlabs.org/patch/314625/ Thank you very much! Christian Changes for v2: - Fixed buggy cfi_intelext_get_fact_prot_info Thank you! Best regards, Christian [1] http://patchwork.ozlabs.org/patch/239897/ [2] http://patchwork.ozlabs.org/patch/240010/ [3] http://patchwork.ozlabs.org/patch/240007/ [4] http://patchwork.ozlabs.org/patch/240008/ [5] http://patchwork.ozlabs.org/patch/240009/ [6] http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html Cc: Artem Bityutskiy Cc: Kyungmin Park Cc: Amul Kumar Saha Cc: Brian Norris Christian Riesch (2): mtd: Add a retlen parameter to _get_{fact,user}_prot_info mtd: Fix the behavior of otp write if there is not enough room for data drivers/mtd/chips/cfi_cmdset_0001.c | 44 +++ drivers/mtd/devices/mtd_dataflash.c | 20 +++- drivers/mtd/mtdchar.c | 18 ++ drivers/mtd/mtdcore.c | 12 +- drivers/mtd/mtdpart.c | 14 ++- drivers/mtd/onenand/onenand_base.c | 40 --- include/linux/mtd/mtd.h | 16 ++--- 7 files changed, 89 insertions(+), 75 deletions(-) -- 1.7.9.5 __ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v2 RESEND 0/2] mtd: Harmonize implementations of OTP write and _get_{fact, user}_prot_info
Hi, --On January 28, 2014 09:29 +0100 Christian Riesch christian.rie...@omicron.at wrote: Hi all, In the discussion on my patchset for the OTP support for drivers/mtd/chips/cfi_cmdset_0002.c [1-5], Artem requested two changes in the current code of the OTP write functions and the _get_{fact,user}_prot_info code. These two patches are an attempt to make the requested changes. The first patch adds a retlen parameter to the _get_fact_prot_info and _get_user_prot_info functions and thus harmonizes the implementation with those of the write and read functions. The second patch fixes a problem that I earlier addressed in [1]. After the discussion about this patch on the mtd mailing list, I think that the correct behavior of the write function should be the one specified in [6]: Try to write as many bytes as possible and return the number of bytes that were written. If no data could be written due to lack of OTP memory, return -ENOSPC. Artem, would you please have a look at these patches? I would like to know if I understood you correctly, or if I missed something here. Please note that I cannot test these patches since I do not have the hardware. The patches are compile tested only. If these patches are ok, I will also respin the OTP support patches for cfi_cmdset_0002. Sorry for bugging you (Artem, mtd Maintainers) again, but I would really like to get this patchset ([a], [b]) and the OTP support for cfi_cmdset_0002.c into mainline. Please have a look at the patches and just tell me if the changes in them are acceptable, or if I should rather post the OTP support without these two patches. Once I have your answer, I will respin these patches and my OTP patches, test them again, and submit them. But without your help I cannot continue. [a] http://patchwork.ozlabs.org/patch/314624/ [b] http://patchwork.ozlabs.org/patch/314625/ Thank you very much! Christian Changes for v2: - Fixed buggy cfi_intelext_get_fact_prot_info Thank you! Best regards, Christian [1] http://patchwork.ozlabs.org/patch/239897/ [2] http://patchwork.ozlabs.org/patch/240010/ [3] http://patchwork.ozlabs.org/patch/240007/ [4] http://patchwork.ozlabs.org/patch/240008/ [5] http://patchwork.ozlabs.org/patch/240009/ [6] http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html Cc: Artem Bityutskiy artem.bityuts...@linux.intel.com Cc: Kyungmin Park kyungmin.p...@samsung.com Cc: Amul Kumar Saha amul.s...@samsung.com Cc: Brian Norris computersforpe...@gmail.com Christian Riesch (2): mtd: Add a retlen parameter to _get_{fact,user}_prot_info mtd: Fix the behavior of otp write if there is not enough room for data drivers/mtd/chips/cfi_cmdset_0001.c | 44 +++ drivers/mtd/devices/mtd_dataflash.c | 20 +++- drivers/mtd/mtdchar.c | 18 ++ drivers/mtd/mtdcore.c | 12 +- drivers/mtd/mtdpart.c | 14 ++- drivers/mtd/onenand/onenand_base.c | 40 --- include/linux/mtd/mtd.h | 16 ++--- 7 files changed, 89 insertions(+), 75 deletions(-) -- 1.7.9.5 __ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/ -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v2 RESEND 0/2] mtd: Harmonize implementations of OTP write and _get_{fact,user}_prot_info
Hi all, In the discussion on my patchset for the OTP support for drivers/mtd/chips/cfi_cmdset_0002.c [1-5], Artem requested two changes in the current code of the OTP write functions and the _get_{fact,user}_prot_info code. These two patches are an attempt to make the requested changes. The first patch adds a retlen parameter to the _get_fact_prot_info and _get_user_prot_info functions and thus harmonizes the implementation with those of the write and read functions. The second patch fixes a problem that I earlier addressed in [1]. After the discussion about this patch on the mtd mailing list, I think that the correct behavior of the write function should be the one specified in [6]: Try to write as many bytes as possible and return the number of bytes that were written. If no data could be written due to lack of OTP memory, return -ENOSPC. Artem, would you please have a look at these patches? I would like to know if I understood you correctly, or if I missed something here. Please note that I cannot test these patches since I do not have the hardware. The patches are compile tested only. If these patches are ok, I will also respin the OTP support patches for cfi_cmdset_0002. Changes for v2: - Fixed buggy cfi_intelext_get_fact_prot_info Thank you! Best regards, Christian [1] http://patchwork.ozlabs.org/patch/239897/ [2] http://patchwork.ozlabs.org/patch/240010/ [3] http://patchwork.ozlabs.org/patch/240007/ [4] http://patchwork.ozlabs.org/patch/240008/ [5] http://patchwork.ozlabs.org/patch/240009/ [6] http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html Cc: Artem Bityutskiy Cc: Kyungmin Park Cc: Amul Kumar Saha Cc: Brian Norris Christian Riesch (2): mtd: Add a retlen parameter to _get_{fact,user}_prot_info mtd: Fix the behavior of otp write if there is not enough room for data drivers/mtd/chips/cfi_cmdset_0001.c | 44 +++ drivers/mtd/devices/mtd_dataflash.c | 20 +++- drivers/mtd/mtdchar.c | 18 ++ drivers/mtd/mtdcore.c | 12 +- drivers/mtd/mtdpart.c | 14 ++- drivers/mtd/onenand/onenand_base.c | 40 --- include/linux/mtd/mtd.h | 16 ++--- 7 files changed, 89 insertions(+), 75 deletions(-) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v2 RESEND 0/2] mtd: Harmonize implementations of OTP write and _get_{fact,user}_prot_info
Hi all, In the discussion on my patchset for the OTP support for drivers/mtd/chips/cfi_cmdset_0002.c [1-5], Artem requested two changes in the current code of the OTP write functions and the _get_{fact,user}_prot_info code. These two patches are an attempt to make the requested changes. The first patch adds a retlen parameter to the _get_fact_prot_info and _get_user_prot_info functions and thus harmonizes the implementation with those of the write and read functions. The second patch fixes a problem that I earlier addressed in [1]. After the discussion about this patch on the mtd mailing list, I think that the correct behavior of the write function should be the one specified in [6]: Try to write as many bytes as possible and return the number of bytes that were written. If no data could be written due to lack of OTP memory, return -ENOSPC. Artem, would you please have a look at these patches? I would like to know if I understood you correctly, or if I missed something here. Please note that I cannot test these patches since I do not have the hardware. The patches are compile tested only. If these patches are ok, I will also respin the OTP support patches for cfi_cmdset_0002. Changes for v2: - Fixed buggy cfi_intelext_get_fact_prot_info Thank you! Best regards, Christian [1] http://patchwork.ozlabs.org/patch/239897/ [2] http://patchwork.ozlabs.org/patch/240010/ [3] http://patchwork.ozlabs.org/patch/240007/ [4] http://patchwork.ozlabs.org/patch/240008/ [5] http://patchwork.ozlabs.org/patch/240009/ [6] http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html Cc: Artem Bityutskiy artem.bityuts...@linux.intel.com Cc: Kyungmin Park kyungmin.p...@samsung.com Cc: Amul Kumar Saha amul.s...@samsung.com Cc: Brian Norris computersforpe...@gmail.com Christian Riesch (2): mtd: Add a retlen parameter to _get_{fact,user}_prot_info mtd: Fix the behavior of otp write if there is not enough room for data drivers/mtd/chips/cfi_cmdset_0001.c | 44 +++ drivers/mtd/devices/mtd_dataflash.c | 20 +++- drivers/mtd/mtdchar.c | 18 ++ drivers/mtd/mtdcore.c | 12 +- drivers/mtd/mtdpart.c | 14 ++- drivers/mtd/onenand/onenand_base.c | 40 --- include/linux/mtd/mtd.h | 16 ++--- 7 files changed, 89 insertions(+), 75 deletions(-) -- 1.7.9.5 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/